CCL:G: Help with DFT convergence failure for Fe2CO2 in Gaussian software



 Sent to CCL by: "Cheng Fei  Phung" [feiphung{:}hotmail.com]
 With the following gaussian16 gjf input file, I got some convergence failure
 issues.
 Could anyone help ?
 Gaussian input gjf file
 ```
 %chk=step_000_DFT.chk
 # opt b3lyp/6-31g geom=connectivity
 Fe2CO2_OPT
 0 1
  Fe                 2.74538330    8.28679554    5.00000000
  O                  4.55208397    8.06717607    5.00000000
  C                  5.30819317    9.07309328    5.00000000
  O                  5.97838127    9.96470142    5.00000000
  1 2 1.0
  2 3 2.0
  3 4 3.0
  4
 ```
 Gaussian log file
 ```
  %chk=step_000_DFT.chk
  -----------------------------------
  # opt b3lyp/6-31g geom=connectivity
  -----------------------------------
  1/18=20,19=15,26=3,38=1,57=2/1,3;
  2/9=110,12=2,17=6,18=5,40=1/2;
  3/5=1,6=6,11=2,25=1,30=1,71=1,74=-5/1,2,3;
  4//1;
  5/5=2,38=5/2;
  6/7=2,8=2,9=2,10=2,28=1/1;
  7//1,2,3,16;
  1/18=20,19=15,26=3/3(2);
  2/9=110/2;
  99//99;
  2/9=110/2;
  3/5=1,6=6,11=2,25=1,30=1,71=1,74=-5/1,2,3;
  4/5=5,16=3,69=1/1;
  5/5=2,38=5/2;
  7//1,2,3,16;
  1/18=20,19=15,26=3/3(-5);
  2/9=110/2;
  6/7=2,8=2,9=2,10=2,19=2,28=1/1;
  99/9=1/99;
  ----------
  Fe2CO2_OPT
  ----------
  Symbolic Z-matrix:
  Charge =  0 Multiplicity = 1
  Fe                    2.74538   8.2868    5.
  O                     4.55208   8.06718   5.
  C                     5.30819   9.07309   5.
  O                     5.97838   9.9647    5.
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Initialization pass.
                            ----------------------------
                            !    Initial Parameters    !
                            ! (Angstroms and Degrees)  !
  --------------------------
 --------------------------
  ! Name  Definition              Value          Derivative Info.
 !
 
 --------------------------------------------------------------------------------
  ! R1    R(1,2)                  1.82           estimate D2E/DX2
 !
  ! R2    R(2,3)                  1.2584         estimate D2E/DX2
 !
  ! R3    R(3,4)                  1.1154         estimate D2E/DX2
 !
  ! A1    A(1,2,3)              120.0            estimate D2E/DX2
 !
  ! A2    L(2,3,4,1,-1)         180.0            estimate D2E/DX2
 !
  ! A3    L(2,3,4,1,-2)         180.0            estimate D2E/DX2
 !
 
 --------------------------------------------------------------------------------
  Trust Radius=3.00D-01 FncErr=1.00D-07 GrdErr=1.00D-06 EigMax=2.50D+02
 EigMin=1.00D-04
  Number of steps in this run=     20 maximum allowed number of steps=    100.
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.745383    8.286796    5.000000
       2          8           0        4.552084    8.067176    5.000000
       3          6           0        5.308193    9.073093    5.000000
       4          8           0        5.978381    9.964701    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    1.820000   0.000000
      3  C    2.680720   1.258400   0.000000
      4  O    3.642478   2.373800   1.115400   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -1.018287   -0.652610   -0.000000
       2          8           0       -0.000000    0.855864    0.000000
       3          6           0        1.255302    0.767619    0.000000
       4          8           0        2.367956    0.689403    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          37.1744583           2.4897380
 2.3334561
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       178.7145642873 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A') (A") (A') (A') (A') (A') (A') (A") (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A') (A") (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A") (A') (A') (A') (A") (A") (A') (A')
 (A')
                  (A') (A')
  The electronic state of the initial guess is 1-A'.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  EnCoef did     3 forward-backward iterations
  EnCoef did   100 forward-backward iterations
  EnCoef did     2 forward-backward iterations
  EnCoef did     2 forward-backward iterations
  SCF Done:  E(RB3LYP) =  -1451.84990065     A.U. after   22 cycles
             NFock= 22  Conv=0.66D-08     -V/T= 2.0016
  **********************************************************************
             Population analysis using the SCF Density.
  **********************************************************************
  Orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A") (A') (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A") (A') (A') (A') (A") (A') (A") (A')
 (A')
                  (A') (A')
  The electronic state is 1-A'.
  Alpha  occ. eigenvalues -- -256.04016 -29.99951 -25.87326 -25.85859 -25.85805
  Alpha  occ. eigenvalues --  -19.31120 -19.28742 -10.45249  -3.41064  -2.20510
  Alpha  occ. eigenvalues --   -2.17421  -2.16694  -1.26882  -1.17261  -0.64217
  Alpha  occ. eigenvalues --   -0.58881  -0.57965  -0.57594  -0.44473  -0.43175
  Alpha  occ. eigenvalues --   -0.22416  -0.22137  -0.20382  -0.15336
  Alpha virt. eigenvalues --   -0.07558  -0.07420  -0.03518  -0.03067  -0.02764
  Alpha virt. eigenvalues --   -0.00807   0.00082   0.10567   0.12952   0.29804
  Alpha virt. eigenvalues --    0.31948   0.36712   0.41870   0.45104   0.54770
  Alpha virt. eigenvalues --    0.63606   0.74556   0.85137   0.88355   0.92857
  Alpha virt. eigenvalues --    0.96917   1.00808   1.01595   1.25495   1.50958
  Alpha virt. eigenvalues --    1.51252   1.55992   1.59723   1.70732   1.86833
  Alpha virt. eigenvalues --    2.01356  20.37339
           Condensed to atoms (all electrons):
                1          2          3          4
      1  Fe  26.065938  -0.058002   0.083106  -0.030239
      2  O   -0.058002   8.304619   0.168196   0.010116
      3  C    0.083106   0.168196   4.724609   0.417125
      4  O   -0.030239   0.010116   0.417125   7.724230
  Mulliken charges:
                1
      1  Fe  -0.060803
      2  O   -0.424929
      3  C    0.606964
      4  O   -0.121232
  Sum of Mulliken charges =  -0.00000
  Mulliken charges with hydrogens summed into heavy atoms:
                1
      1  Fe  -0.060803
      2  O   -0.424929
      3  C    0.606964
      4  O   -0.121232
  Electronic spatial extent (au):  <R**2>=            453.0609
  Charge=             -0.0000 electrons
  Dipole moment (field-independent basis, Debye):
     X=              1.6708    Y=              1.8514    Z=             -0.0000
 Tot=              2.4938
  Quadrupole moment (field-independent basis, Debye-Ang):
    XX=            -35.0872   YY=            -34.7815   ZZ=            -32.5686
    XY=              0.8912   XZ=              0.0000   YZ=              0.0000
  Traceless Quadrupole moment (field-independent basis, Debye-Ang):
    XX=             -0.9415   YY=             -0.6357   ZZ=              1.5772
    XY=              0.8912   XZ=              0.0000   YZ=              0.0000
  Octapole moment (field-independent basis, Debye-Ang**2):
   XXX=             -8.4875  YYY=              8.6001  ZZZ=             -0.0000
 XYY=              3.5470
   XXY=              1.7153  XXZ=              0.0000  XZZ=              0.7336
 YZZ=              1.9407
   YYZ=             -0.0000  XYZ=             -0.0000
  Hexadecapole moment (field-independent basis, Debye-Ang**3):
  XXXX=           -415.5041 YYYY=           -171.1039 ZZZZ=            -55.1637
 XXXY=            -84.4690
  XXXZ=              0.0000 YYYX=            -75.7822 YYYZ=              0.0000
 ZZZX=              0.0000
  ZZZY=              0.0000 XXYY=            -90.7121 XXZZ=            -70.9019
 YYZZ=            -36.9432
  XXYZ=              0.0000 YYXZ=              0.0000 ZZXY=            -24.7602
  N-N= 1.787145642873D+02 E-N=-3.807626875025D+03  KE= 1.449497603530D+03
  Symmetry A'   KE= 1.287179877057D+03
  Symmetry A"   KE= 1.623177264732D+02
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.048820174    0.005157682    0.000000000
       2        8           0.068584660    0.015861998    0.000000000
       3        6          -0.104728901   -0.126023309    0.000000000
       4        8           0.084964415    0.105003629   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.126023309 RMS     0.066118707
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.134986320 RMS     0.059949734
  Search for a local minimum.
  Step number   1 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Second derivative matrix not updated -- first step.
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.22791
            R2           0.00000   0.80209
            R3           0.00000   0.00000   1.62060
            A1           0.00000   0.00000   0.00000   0.25000
            A2           0.00000   0.00000   0.00000   0.00000   0.05456
            A3           0.00000   0.00000   0.00000   0.00000   0.00000
                           A3
            A3           0.05456
  ITU=  0
      Eigenvalues ---    0.05456   0.05456   0.22791   0.25000   0.80209
      Eigenvalues ---    1.62060
  RFO step:  Lambda=-2.30438557D-02 EMin= 5.45649275D-02
  Linear search not attempted -- first point.
  Iteration  1 RMS(Cart)=  0.10911805 RMS(Int)=  0.00403264
  Iteration  2 RMS(Cart)=  0.00524126 RMS(Int)=  0.00001569
  Iteration  3 RMS(Cart)=  0.00001737 RMS(Int)=  0.00000000
  Iteration  4 RMS(Cart)=  0.00000000 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 2.67D-10 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        3.43930   0.04909   0.00000   0.19560   0.19560   3.63490
     R2        2.37803  -0.02868   0.00000  -0.03476  -0.03476   2.34327
     R3        2.10780   0.13499   0.00000   0.08213   0.08213   2.18993
     A1        2.09440   0.00265   0.00000   0.00969   0.00969   2.10408
     A2        3.14159   0.01018   0.00000   0.13112   0.13112   3.27271
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.134986     0.000450     NO
  RMS     Force            0.059950     0.000300     NO
  Maximum Displacement     0.164913     0.001800     NO
  RMS     Displacement     0.111408     0.001200     NO
  Predicted change in Energy=-1.225354D-02
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.658115    8.232499    5.000000
       2          8           0        4.576263    8.089032    5.000000
       3          6           0        5.284531    9.106861    5.000000
       4          8           0        6.065132    9.963375    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    1.923506   0.000000
      3  C    2.768135   1.240008   0.000000
      4  O    3.821478   2.393719   1.158859   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -1.022093   -0.757193   -0.000000
       2          8           0        0.000000    0.872286    0.000000
       3          6           0        1.239558    0.838897    0.000000
       4          8           0        2.392133    0.959419    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          40.3135828           2.2660782
 2.1454781
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       172.3989508234 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=     0.000000    0.000000   -0.000000
          Rot=    0.999288   -0.000000   -0.000000   -0.037733 Ang=  -4.32 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A") (A') (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A") (A') (A') (A') (A") (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.86533909     A.U. after   18 cycles
             NFock= 18  Conv=0.23D-08     -V/T= 2.0018
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.021775369    0.002114287    0.000000000
       2        8           0.036955110    0.014737157    0.000000000
       3        6          -0.039695691   -0.040384091    0.000000000
       4        8           0.024515951    0.023532647   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.040384091 RMS     0.023135364
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.033908365 RMS     0.018980685
  Search for a local minimum.
  Step number   2 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    1    2
  DE= -1.54D-02 DEPred=-1.23D-02 R= 1.26D+00
  TightC=F SS=  1.41D+00  RLast= 2.52D-01 DXNew= 5.0454D-01 7.5596D-01
  Trust test= 1.26D+00 RLast= 2.52D-01 DXMaxT set to 5.05D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.18668
            R2           0.04604   0.76870
            R3          -0.08608   0.12904   1.50110
            A1           0.00316   0.00128   0.01538   0.25104
            A2          -0.00501   0.00702  -0.00784   0.00077   0.05407
            A3           0.00000  -0.00000   0.00000   0.00000   0.00000
                           A3
            A3           0.05456
  ITU=  1  0
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.05364   0.05456   0.17607   0.25109   0.75296
      Eigenvalues ---    1.52783
  RFO step:  Lambda=-2.40357398D-03 EMin= 5.36398691D-02
  Quartic linear search produced a step of  0.74433.
  Iteration  1 RMS(Cart)=  0.12055350 RMS(Int)=  0.00970928
  Iteration  2 RMS(Cart)=  0.01171440 RMS(Int)=  0.00007671
  Iteration  3 RMS(Cart)=  0.00008339 RMS(Int)=  0.00000000
  Iteration  4 RMS(Cart)=  0.00000000 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 4.24D-12 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        3.63490   0.02187   0.14559   0.04745   0.19304   3.82794
     R2        2.34327  -0.02250  -0.02587  -0.02538  -0.05125   2.29202
     R3        2.18993   0.03391   0.06113  -0.01980   0.04133   2.23126
     A1        2.10408  -0.00172   0.00721  -0.01780  -0.01059   2.09349
     A2        3.27271   0.00495   0.09759   0.11009   0.20769   3.48040
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.033908     0.000450     NO
  RMS     Force            0.018981     0.000300     NO
  Maximum Displacement     0.157853     0.001800     NO
  RMS     Displacement     0.126480     0.001200     NO
  Predicted change in Energy=-2.644271D-03
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.586226    8.170844    5.000000
       2          8           0        4.611490    8.130764    5.000000
       3          6           0        5.237660    9.169515    5.000000
       4          8           0        6.148665    9.920644    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.025661   0.000000
      3  C    2.833275   1.212885   0.000000
      4  O    3.968976   2.359359   1.180730   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.994550   -0.879340   -0.000000
       2          8           0       -0.000000    0.885361    0.000000
       3          6           0        1.212831    0.896868    0.000000
       4          8           0        2.322666    1.299844    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          47.4271405           2.0987230
 2.0097869
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       168.0152669884 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=     0.000000   -0.000000   -0.000000
          Rot=    0.998838   -0.000000   -0.000000   -0.048193 Ang=  -5.52 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A') (A") (A') (A") (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A") (A') (A') (A') (A") (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.86779894     A.U. after   19 cycles
             NFock= 19  Conv=0.32D-08     -V/T= 2.0018
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.002475531    0.002170910    0.000000000
       2        8          -0.009275511   -0.015400826    0.000000000
       3        6           0.012873515    0.005174131    0.000000000
       4        8          -0.001122473    0.008055785   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.015400826 RMS     0.007028017
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.017401591 RMS     0.010265616
  Search for a local minimum.
  Step number   3 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    1    2    3
  DE= -2.46D-03 DEPred=-2.64D-03 R= 9.30D-01
  TightC=F SS=  1.41D+00  RLast= 2.91D-01 DXNew= 8.4853D-01 8.7386D-01
  Trust test= 9.30D-01 RLast= 2.91D-01 DXMaxT set to 8.49D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.14042
            R2           0.04009   0.84593
            R3          -0.15330   0.08559   1.42002
            A1           0.01583  -0.02335   0.04566   0.25643
            A2           0.00387  -0.03883   0.02611   0.01417   0.08070
            A3           0.00000  -0.00000   0.00000   0.00000   0.00000
                           A3
            A3           0.05456
  ITU=  1  1  0
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.05456   0.07570   0.11658   0.25847   0.84223
      Eigenvalues ---    1.45052
  RFO step:  Lambda=-2.28883397D-03 EMin= 5.45649275D-02
  Quartic linear search produced a step of -0.27572.
  Iteration  1 RMS(Cart)=  0.11082651 RMS(Int)=  0.00968836
  Iteration  2 RMS(Cart)=  0.01008655 RMS(Int)=  0.00002336
  Iteration  3 RMS(Cart)=  0.00002996 RMS(Int)=  0.00000000
  Iteration  4 RMS(Cart)=  0.00000000 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 3.37D-09 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        3.82794   0.00252  -0.05323   0.09099   0.03776   3.86570
     R2        2.29202   0.01740   0.01413  -0.00542   0.00871   2.30074
     R3        2.23126   0.00426  -0.01140   0.02206   0.01067   2.24192
     A1        2.09349  -0.00809   0.00292  -0.02802  -0.02510   2.06839
     A2        3.48040  -0.01548  -0.05726  -0.11944  -0.17670   3.30370
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.017402     0.000450     NO
  RMS     Force            0.010266     0.000300     NO
  Maximum Displacement     0.128723     0.001800     NO
  RMS     Displacement     0.114165     0.001200     NO
  Predicted change in Energy=-1.691720D-03
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.587635    8.230504    5.000000
       2          8           0        4.627577    8.077882    5.000000
       3          6           0        5.286906    9.101397    5.000000
       4          8           0        6.081924    9.981983    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.045643   0.000000
      3  C    2.836286   1.217497   0.000000
      4  O    3.908674   2.395981   1.186375   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -1.016902   -0.832967   -0.000000
       2          8           0        0.000000    0.942016    0.000000
       3          6           0        1.217184    0.914423    0.000000
       4          8           0        2.392045    1.079312    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          36.6647851           2.1527648
 2.0333756
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       167.4803273251 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=    -0.000000    0.000000   -0.000000
          Rot=    0.999651    0.000000    0.000000    0.026421 Ang=   3.03 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A') (A") (A') (A") (A") (A') (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A") (A') (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.86993099     A.U. after   20 cycles
             NFock= 20  Conv=0.21D-08     -V/T= 2.0019
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.010173453    0.000922091    0.000000000
       2        8           0.011409240    0.005539559    0.000000000
       3        6           0.011036141    0.003010680    0.000000000
       4        8          -0.012271929   -0.009472330   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.012271929 RMS     0.007282357
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.015252918 RMS     0.008296351
  Search for a local minimum.
  Step number   4 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    1    2    3    4
  DE= -2.13D-03 DEPred=-1.69D-03 R= 1.26D+00
  TightC=F SS=  1.41D+00  RLast= 1.83D-01 DXNew= 1.4270D+00 5.4884D-01
  Trust test= 1.26D+00 RLast= 1.83D-01 DXMaxT set to 8.49D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.13140
            R2          -0.02952   0.99443
            R3          -0.23876   0.34060   1.90547
            A1           0.05061  -0.06539  -0.04074   0.26467
            A2           0.04857  -0.06039  -0.02384   0.01003   0.05698
            A3          -0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU=  1  1  1  0
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.02325   0.05456   0.11590   0.27228   0.89025
      Eigenvalues ---    2.05128
  RFO step:  Lambda=-1.20946373D-02 EMin= 2.32527414D-02
  Quartic linear search produced a step of  2.00000.
  Iteration  1 RMS(Cart)=  0.15753061 RMS(Int)=  0.20973352
  Iteration  2 RMS(Cart)=  0.13523802 RMS(Int)=  0.11137030
  Iteration  3 RMS(Cart)=  0.13302814 RMS(Int)=  0.03128275
  Iteration  4 RMS(Cart)=  0.05140568 RMS(Int)=  0.00161966
  Iteration  5 RMS(Cart)=  0.00130705 RMS(Int)=  0.00000029
  Iteration  6 RMS(Cart)=  0.00000050 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 2.64D-09 for atom     1.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        3.86570   0.01021   0.07552   0.32854   0.40406   4.26977
     R2        2.30074  -0.00610   0.01743  -0.06888  -0.05145   2.24928
     R3        2.24192  -0.01525   0.02133   0.02114   0.04247   2.28440
     A1        2.06839  -0.00058  -0.05020  -0.01718  -0.06738   2.00101
     A2        3.30370  -0.00621  -0.35341  -0.30291  -0.65631   2.64738
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.015253     0.000450     NO
  RMS     Force            0.008296     0.000300     NO
  Maximum Displacement     0.693437     0.001800     NO
  RMS     Displacement     0.448339     0.001200     NO
  Predicted change in Energy=-8.001698D-04
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.579834    8.473124    5.000000
       2          8           0        4.778043    7.950580    5.000000
       3          6           0        5.511192    8.888255    5.000000
       4          8           0        5.714973   10.079806    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.259464   0.000000
      3  C    2.960607   1.190270   0.000000
      4  O    3.522857   2.326251   1.208851   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.966237   -0.834438    0.000000
       2          8           0        0.000000    1.208003    0.000000
       3          6           0        1.190189    1.194115    0.000000
       4          8           0        2.247629    0.608333    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          18.2901624           2.4360723
 2.1497469
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       164.7531395730 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=    -0.000000    0.000000    0.000000
          Rot=    0.999818   -0.000000   -0.000000    0.019085 Ang=   2.19 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A') (A") (A') (A") (A") (A') (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.86781785     A.U. after   29 cycles
             NFock= 29  Conv=0.68D-08     -V/T= 2.0019
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.000106178   -0.001199482    0.000000000
       2        8          -0.022429963   -0.045931231    0.000000000
       3        6           0.012626790    0.068317076   -0.000000000
       4        8           0.009909351   -0.021186363   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.068317076 RMS     0.025800431
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.051010880 RMS     0.025578300
  Search for a local minimum.
  Step number   5 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    1    2    3    5    4
  DE=  2.11D-03 DEPred=-8.00D-04 R=-2.64D+00
  Trust test=-2.64D+00 RLast= 7.77D-01 DXMaxT set to 4.24D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.11669
            R2          -0.02838   1.07683
            R3          -0.21577   0.34457   2.09097
            A1           0.05177  -0.05911  -0.07704   0.26881
            A2           0.03897   0.01349  -0.02266   0.01257   0.07606
            A3           0.00000  -0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU= -1  1  1  1  0
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.04560   0.05456   0.11036   0.27536   0.97425
      Eigenvalues ---    2.22379
  RFO step:  Lambda=-1.61754693D-03 EMin= 4.55975139D-02
  Quartic linear search produced a step of -0.47194.
  Iteration  1 RMS(Cart)=  0.15811510 RMS(Int)=  0.04467587
  Iteration  2 RMS(Cart)=  0.06373588 RMS(Int)=  0.00306302
  Iteration  3 RMS(Cart)=  0.00300025 RMS(Int)=  0.00000161
  Iteration  4 RMS(Cart)=  0.00000224 RMS(Int)=  0.00000000
  Iteration  5 RMS(Cart)=  0.00000000 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 1.80D-09 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        4.26977  -0.00018  -0.19069   0.09796  -0.09273   4.17703
     R2        2.24928   0.05101   0.02428   0.02456   0.04884   2.29813
     R3        2.28440  -0.01921  -0.02005  -0.00232  -0.02237   2.26203
     A1        2.00101   0.00510   0.03180  -0.00841   0.02339   2.02439
     A2        2.64738   0.03047   0.30974  -0.00753   0.30221   2.94959
     A3        3.14159  -0.00000   0.00000  -0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.051011     0.000450     NO
  RMS     Force            0.025578     0.000300     NO
  Maximum Displacement     0.378753     0.001800     NO
  RMS     Displacement     0.217004     0.001200     NO
  Predicted change in Energy=-5.780911D-03
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.534212    8.352795    5.000000
       2          8           0        4.714518    7.989350    5.000000
       3          6           0        5.419911    8.979987    5.000000
       4          8           0        5.915400   10.069634    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.210391   0.000000
      3  C    2.953071   1.216117   0.000000
      4  O    3.792093   2.402020   1.197013   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -1.014471   -0.849253    0.000000
       2          8           0        0.000000    1.114590   -0.000000
       3          6           0        1.215789    1.086353   -0.000000
       4          8           0        2.385187    0.830717    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          23.0469831           2.2019757
 2.0099402
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       162.9824772784 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Lowest energy guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=     0.000000   -0.000000   -0.000000
          Rot=    0.999926    0.000000    0.000000    0.012166 Ang=   1.39 deg.
  B after Tr=     0.000000   -0.000000    0.000000
          Rot=    0.999974    0.000000    0.000000   -0.007207 Ang=  -0.83 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A") (A') (A') (A') (A') (A") (A')
                  (A') (A") (A') (A") (A') (A') (A') (A') (A') (A')
                  (A') (A') (A") (A')
        Virtual   (A') (A') (A') (A") (A') (A') (A') (A') (A") (A')
                  (A') (A") (A') (A") (A') (A') (A') (A') (A') (A')
                  (A') (A') (A") (A') (A") (A") (A")
 (A") (A") (A")
                  (A") (A")
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  An orbital has undefined symmetry, so N**3 symmetry is turned off.
  SCF Done:  E(RB3LYP) =  -1451.87361189     A.U. after   18 cycles
             NFock= 18  Conv=0.21D-08     -V/T= 2.0020
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.006762521   -0.001014838    0.000000000
       2        8           0.011220750    0.011788104    0.000000000
       3        6           0.004974942    0.013029182    0.000000000
       4        8          -0.009433172   -0.023802448   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.023802448 RMS     0.009839026
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.025570291 RMS     0.012326163
  Search for a local minimum.
  Step number   6 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    5    4    6
  DE= -3.68D-03 DEPred=-5.78D-03 R= 6.37D-01
  TightC=F SS=  1.41D+00  RLast= 4.74D-01 DXNew= 7.1352D-01 1.4219D+00
  Trust test= 6.37D-01 RLast= 4.74D-01 DXMaxT set to 7.14D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.07892
            R2          -0.04213   1.06304
            R3          -0.14729   0.43165   2.00869
            A1           0.03635  -0.10299  -0.07973   0.28443
            A2           0.04635  -0.02243  -0.03787   0.01948   0.06194
            A3           0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU=  1 -1  1  1  1  0
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.02068   0.05456   0.10139   0.27689   0.90307
      Eigenvalues ---    2.19500
  RFO step:  Lambda=-7.63600493D-04 EMin= 2.06752381D-02
  Quartic linear search produced a step of  0.01078.
  Iteration  1 RMS(Cart)=  0.02970283 RMS(Int)=  0.00010846
  Iteration  2 RMS(Cart)=  0.00018717 RMS(Int)=  0.00000001
  Iteration  3 RMS(Cart)=  0.00000002 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 6.39D-13 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        4.17703   0.00650   0.00335   0.05881   0.06216   4.23919
     R2        2.29813  -0.01136  -0.00003  -0.00366  -0.00369   2.29444
     R3        2.26203  -0.02557   0.00022  -0.00697  -0.00675   2.25528
     A1        2.02439   0.00885  -0.00047   0.02112   0.02064   2.04504
     A2        2.94959   0.00285  -0.00382  -0.00633  -0.01014   2.93945
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.025570     0.000450     NO
  RMS     Force            0.012326     0.000300     NO
  Maximum Displacement     0.057690     0.001800     NO
  RMS     Displacement     0.029816     0.001200     NO
  Predicted change in Energy=-3.920710D-04
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.503684    8.341721    5.000000
       2          8           0        4.720653    7.999117    5.000000
       3          6           0        5.433581    8.981934    5.000000
       4          8           0        5.926124   10.068995    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.243285   0.000000
      3  C    2.999028   1.214164   0.000000
      4  O    3.833611   2.395319   1.193441   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -1.013891   -0.880127   -0.000000
       2          8           0        0.000000    1.120961   -0.000000
       3          6           0        1.214147    1.127363    0.000000
       4          8           0        2.384536    0.893928    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          23.3483867           2.1444291
 1.9640420
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       161.6461473076 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=    -0.000000    0.000000   -0.000000
          Rot=    0.999955    0.000000    0.000000   -0.009478 Ang=  -1.09 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A') (A") (A') (A") (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.87429043     A.U. after   17 cycles
             NFock= 17  Conv=0.26D-08     -V/T= 2.0020
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.005278832   -0.001002632    0.000000000
       2        8           0.010131641    0.009759476    0.000000000
       3        6           0.000804496    0.008975450    0.000000000
       4        8          -0.005657306   -0.017732294   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.017732294 RMS     0.007384748
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.018484645 RMS     0.009558264
  Search for a local minimum.
  Step number   7 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    5    4    6    7
  DE= -6.79D-04 DEPred=-3.92D-04 R= 1.73D+00
  TightC=F SS=  1.41D+00  RLast= 6.67D-02 DXNew= 1.2000D+00 2.0017D-01
  Trust test= 1.73D+00 RLast= 6.67D-02 DXMaxT set to 7.14D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.03412
            R2           0.01695   0.68290
            R3           0.00606   0.07558   1.40939
            A1          -0.02715   0.02674   0.17851   0.19217
            A2           0.00174  -0.00012   0.13342  -0.02294   0.07443
            A3           0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU=  1  1 -1  1  1  1  0
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.02621   0.05044   0.05456   0.18532   0.67598
      Eigenvalues ---    1.45507
  RFO step:  Lambda=-2.40776496D-03 EMin= 2.62092646D-02
  Quartic linear search produced a step of  2.00000.
  Iteration  1 RMS(Cart)=  0.22169776 RMS(Int)=  0.01828870
  Iteration  2 RMS(Cart)=  0.01788500 RMS(Int)=  0.00011308
  Iteration  3 RMS(Cart)=  0.00017225 RMS(Int)=  0.00000001
  Iteration  4 RMS(Cart)=  0.00000001 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 3.46D-09 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        4.23919   0.00506   0.12432   0.04181   0.16613   4.40533
     R2        2.29444  -0.00994  -0.00738  -0.01079  -0.01817   2.27627
     R3        2.25528  -0.01848  -0.01350  -0.03180  -0.04531   2.20997
     A1        2.04504   0.00764   0.04129   0.08208   0.12336   2.16840
     A2        2.93945   0.00487  -0.02028   0.20096   0.18068   3.12013
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.018485     0.000450     NO
  RMS     Force            0.009558     0.000300     NO
  Maximum Displacement     0.327091     0.001800     NO
  RMS     Displacement     0.228521     0.001200     NO
  Predicted change in Energy=-2.174380D-03
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.368510    8.205953    5.000000
       2          8           0        4.697382    8.101841    5.000000
       3          6           0        5.418936    9.066363    5.000000
       4          8           0        6.099214   10.017610    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.331198   0.000000
      3  C    3.169448   1.204551   0.000000
      4  O    4.147318   2.373879   1.169465   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.997386   -1.046195   -0.000000
       2          8           0        0.000000    1.060866    0.000000
       3          6           0        1.190017    1.247420    0.000000
       4          8           0        2.348993    1.403703    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          33.0882712           1.8397115
 1.7428111
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       156.8749464765 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=     0.000000   -0.000000    0.000000
          Rot=    0.998225    0.000000    0.000000   -0.059559 Ang=  -6.83 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A') (A") (A') (A") (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.87602382     A.U. after   22 cycles
             NFock= 22  Conv=0.37D-08     -V/T= 2.0019
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.003851077   -0.000715079    0.000000000
       2        8           0.004238042    0.007739270    0.000000000
       3        6          -0.011114390   -0.025897542    0.000000000
       4        8           0.010727425    0.018873352   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.025897542 RMS     0.010640696
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.021591506 RMS     0.009617902
  Search for a local minimum.
  Step number   8 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    5    4    6    7    8
  DE= -1.73D-03 DEPred=-2.17D-03 R= 7.97D-01
  TightC=F SS=  1.41D+00  RLast= 2.79D-01 DXNew= 1.2000D+00 8.3702D-01
  Trust test= 7.97D-01 RLast= 2.79D-01 DXMaxT set to 8.37D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.02499
            R2           0.02838   0.76975
            R3           0.01936  -0.02384   1.62395
            A1          -0.03853   0.02306   0.21921   0.19528
            A2           0.01794   0.00701   0.01554  -0.01990   0.05621
            A3           0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU=  1  1  1 -1  1  1  1
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.00923   0.05320   0.05456   0.17878   0.77147
      Eigenvalues ---    1.65748
  RFO step:  Lambda=-2.80845870D-03 EMin= 9.23414545D-03
  Quartic linear search produced a step of -0.11821.
  Iteration  1 RMS(Cart)=  0.10197437 RMS(Int)=  0.08184751
  Iteration  2 RMS(Cart)=  0.06677561 RMS(Int)=  0.00015179
  Iteration  3 RMS(Cart)=  0.00033214 RMS(Int)=  0.00000004
  Iteration  4 RMS(Cart)=  0.00000004 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 3.97D-15 for atom     4.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        4.40533   0.00382  -0.01964   0.41990   0.40026   4.80558
     R2        2.27627  -0.00586   0.00215  -0.02557  -0.02342   2.25285
     R3        2.20997   0.02159   0.00536  -0.00725  -0.00190   2.20807
     A1        2.16840   0.00390  -0.01458   0.10091   0.08633   2.25473
     A2        3.12013  -0.00498  -0.02136  -0.14762  -0.16898   2.95115
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.021592     0.000450     NO
  RMS     Force            0.009618     0.000300     NO
  Maximum Displacement     0.301262     0.001800     NO
  RMS     Displacement     0.159710     0.001200     NO
  Predicted change in Energy=-1.641297D-03
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.209089    8.180011    5.000000
       2          8           0        4.751527    8.126275    5.000000
       3          6           0        5.524147    9.034181    5.000000
       4          8           0        6.099278   10.051299    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.543006   0.000000
      3  C    3.423334   1.192156   0.000000
      4  O    4.316861   2.349926   1.168462   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.972541   -1.196519   -0.000000
       2          8           0        0.000000    1.153171    0.000000
       3          6           0        1.141863    1.495787    0.000000
       4          8           0        2.304363    1.613674    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          30.8680433           1.6483805
 1.5648178
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       150.3516610546 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=     0.000000    0.000000   -0.000000
          Rot=    0.999296    0.000000    0.000000   -0.037523 Ang=  -4.30 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A') (A") (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.87603168     A.U. after   24 cycles
             NFock= 24  Conv=0.15D-08     -V/T= 2.0019
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.000166064   -0.000329281   -0.000000000
       2        8          -0.002800180   -0.013425669    0.000000000
       3        6          -0.019899502   -0.011378783    0.000000000
       4        8           0.022865747    0.025133733   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.025133733 RMS     0.012477444
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.033134375 RMS     0.015972393
  Search for a local minimum.
  Step number   9 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    8    9
  DE= -7.86D-06 DEPred=-1.64D-03 R= 4.79D-03
  Trust test= 4.79D-03 RLast= 4.44D-01 DXMaxT set to 4.19D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.02358
            R2           0.02417   0.81301
            R3          -0.01528   0.06675   1.44726
            A1          -0.04196   0.02548   0.17898   0.18981
            A2           0.00958   0.06486   0.09808  -0.02143   0.12950
            A3           0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU= -1  1  1  1 -1  1  1
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.01202   0.05456   0.09959   0.19320   0.81119
      Eigenvalues ---    1.48717
  RFO step:  Lambda=-1.02751126D-03 EMin= 1.20161427D-02
  Quartic linear search produced a step of -0.49108.
  Iteration  1 RMS(Cart)=  0.07191963 RMS(Int)=  0.00415878
  Iteration  2 RMS(Cart)=  0.00363323 RMS(Int)=  0.00000226
  Iteration  3 RMS(Cart)=  0.00000349 RMS(Int)=  0.00000000
  Iteration  4 RMS(Cart)=  0.00000000 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 3.37D-11 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        4.80558   0.00016  -0.19656   0.16388  -0.03267   4.77291
     R2        2.25285   0.01240   0.01150  -0.00572   0.00578   2.25863
     R3        2.20807   0.03313   0.00093   0.01347   0.01440   2.22248
     A1        2.25473   0.00162  -0.04240   0.04251   0.00012   2.25485
     A2        2.95115   0.01663   0.08298   0.03291   0.11589   3.06704
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.033134     0.000450     NO
  RMS     Force            0.015972     0.000300     NO
  Maximum Displacement     0.117573     0.001800     NO
  RMS     Displacement     0.071866     0.001200     NO
  Predicted change in Energy=-1.245542D-03
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.204892    8.146713    5.000000
       2          8           0        4.730606    8.143603    5.000000
       3          6           0        5.487049    9.068984    5.000000
       4          8           0        6.161495   10.032467    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.525716   0.000000
      3  C    3.409273   1.195214   0.000000
      4  O    4.383010   2.369652   1.176085   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.970273   -1.210254    0.000000
       2          8           0        0.000000    1.121657   -0.000000
       3          6           0        1.145389    1.463154   -0.000000
       4          8           0        2.294345    1.714305    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          34.7215963           1.6176394
 1.5456302
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       150.0472248426 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=    -0.000000    0.000000    0.000000
          Rot=    0.999977   -0.000000   -0.000000   -0.006797 Ang=  -0.78 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A') (A") (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.87748801     A.U. after   22 cycles
             NFock= 22  Conv=0.34D-08     -V/T= 2.0020
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.001245199   -0.000452148   -0.000000000
       2        8          -0.000402016   -0.001845350    0.000000000
       3        6          -0.007506517   -0.008743637    0.000000000
       4        8           0.009153732    0.011041135   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.011041135 RMS     0.005352712
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.014295234 RMS     0.006128079
  Search for a local minimum.
  Step number  10 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    7    8    9   10
  DE= -1.46D-03 DEPred=-1.25D-03 R= 1.17D+00
  TightC=F SS=  1.41D+00  RLast= 1.21D-01 DXNew= 7.0385D-01 3.6420D-01
  Trust test= 1.17D+00 RLast= 1.21D-01 DXMaxT set to 4.19D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.02116
            R2           0.01860   0.80098
            R3          -0.04207   0.00121   1.18423
            A1          -0.04617   0.01742   0.13460   0.18267
            A2           0.00094   0.04778   0.00331  -0.03562   0.11863
            A3           0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU=  1 -1  1  1  1 -1  1
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.00733   0.05456   0.09959   0.19176   0.80503
      Eigenvalues ---    1.20395
  RFO step:  Lambda=-5.68618921D-04 EMin= 7.32934880D-03
  Quartic linear search produced a step of  0.26195.
  Iteration  1 RMS(Cart)=  0.12595822 RMS(Int)=  0.01150147
  Iteration  2 RMS(Cart)=  0.01077219 RMS(Int)=  0.00000729
  Iteration  3 RMS(Cart)=  0.00001250 RMS(Int)=  0.00000000
  Iteration  4 RMS(Cart)=  0.00000000 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 6.19D-11 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        4.77291   0.00124  -0.00856   0.23702   0.22846   5.00137
     R2        2.25863   0.00282   0.00151  -0.00753  -0.00602   2.25261
     R3        2.22248   0.01430   0.00377   0.00837   0.01214   2.23462
     A1        2.25485   0.00218   0.00003   0.06996   0.06999   2.32484
     A2        3.06704   0.00259   0.03036   0.01527   0.04563   3.11267
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.014295     0.000450     NO
  RMS     Force            0.006128     0.000300     NO
  Maximum Displacement     0.217577     0.001800     NO
  RMS     Displacement     0.135852     0.001200     NO
  Predicted change in Energy=-3.753860D-04
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.089755    8.074196    5.000000
       2          8           0        4.733580    8.195565    5.000000
       3          6           0        5.508926    9.100977    5.000000
       4          8           0        6.251781   10.021028    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.646610   0.000000
      3  C    3.570015   1.192029   0.000000
      4  O    4.594847   2.374289   1.182508   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.932574   -1.339030   -0.000000
       2          8           0       -0.000000    1.137832    0.000000
       3          6           0        1.100722    1.595372    0.000000
       4          8           0        2.205324    2.017487    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          40.8689589           1.4655449
 1.4148103
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       145.7201198998 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=     0.000000   -0.000000    0.000000
          Rot=    0.999288    0.000000    0.000000   -0.037728 Ang=  -4.32 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A') (A") (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.87795625     A.U. after   28 cycles
             NFock= 28  Conv=0.34D-08     -V/T= 2.0020
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.000677739   -0.000300409   -0.000000000
       2        8          -0.002556724   -0.001617657    0.000000000
       3        6           0.001405790   -0.001215669    0.000000000
       4        8           0.001828673    0.003133735   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.003133735 RMS     0.001481038
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.003590468 RMS     0.002224942
  Search for a local minimum.
  Step number  11 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- RFO/linear search
  Update second derivatives using D2CorX and points    9   10   11
  DE= -4.68D-04 DEPred=-3.75D-04 R= 1.25D+00
  TightC=F SS=  1.41D+00  RLast= 2.44D-01 DXNew= 7.0385D-01 7.3089D-01
  Trust test= 1.25D+00 RLast= 2.44D-01 DXMaxT set to 7.04D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.02048
            R2           0.01458   0.77921
            R3          -0.05236  -0.08123   1.11465
            A1          -0.04795   0.00752   0.10310   0.17820
            A2          -0.00092   0.02357   0.03139  -0.04336   0.14998
            A3           0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU=  1  1 -1  1  1  1 -1
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.00521   0.05456   0.11587   0.21116   0.76332
      Eigenvalues ---    1.14695
  RFO step:  Lambda=-1.05433535D-04 EMin= 5.21447598D-03
  Quartic linear search produced a step of  0.44310.
  Iteration  1 RMS(Cart)=  0.08670569 RMS(Int)=  0.00067864
  Iteration  2 RMS(Cart)=  0.00120304 RMS(Int)=  0.00000056
  Iteration  3 RMS(Cart)=  0.00000077 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 6.87D-13 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        5.00137   0.00069   0.10123   0.06237   0.16360   5.16497
     R2        2.25261   0.00357  -0.00267   0.00419   0.00153   2.25413
     R3        2.23462   0.00359   0.00538   0.00089   0.00627   2.24089
     A1        2.32484   0.00143   0.03101   0.01864   0.04965   2.37449
     A2        3.11267  -0.00125   0.02022  -0.01476   0.00546   3.11813
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.003590     0.000450     NO
  RMS     Force            0.002225     0.000300     NO
  Maximum Displacement     0.149184     0.001800     NO
  RMS     Displacement     0.087397     0.001200     NO
  Predicted change in Energy=-1.048087D-04
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        2.010810    8.029290    5.000000
       2          8           0        4.736741    8.228249    5.000000
       3          6           0        5.532950    9.116455    5.000000
       4          8           0        6.303541   10.017773    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.733182   0.000000
      3  C    3.686109   1.192837   0.000000
      4  O    4.730920   2.378500   1.185827   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.903114   -1.423762   -0.000000
       2          8           0        0.000000    1.155903    0.000000
       3          6           0        1.065144    1.692864    0.000000
       4          8           0        2.136263    2.201675    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          45.0139011           1.3761565
 1.3353330
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       142.8857459390 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=     0.000000   -0.000000   -0.000000
          Rot=    0.999722    0.000000    0.000000   -0.023597 Ang=  -2.70 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A') (A") (A') (A") (A') (A') (A')
 (A')
                  (A") (A') (A') (A") (A') (A') (A') (A") (A')
 (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.87810679     A.U. after   37 cycles
             NFock= 37  Conv=0.58D-08     -V/T= 2.0020
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.000294305   -0.000196444   -0.000000000
       2        8          -0.000475934    0.000796809    0.000000000
       3        6           0.002190581    0.000311672    0.000000000
       4        8          -0.001420341   -0.000912037   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.002190581 RMS     0.000853014
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.001612054 RMS     0.000912967
  Search for a local minimum.
  Step number  12 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- En-DIIS/RFO-DIIS
  Update second derivatives using D2CorX and points    9   10   11   12
  DE= -1.51D-04 DEPred=-1.05D-04 R= 1.44D+00
  TightC=F SS=  1.41D+00  RLast= 1.71D-01 DXNew= 1.1837D+00 5.1353D-01
  Trust test= 1.44D+00 RLast= 1.71D-01 DXMaxT set to 7.04D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.01955
            R2           0.01287   0.82413
            R3          -0.04869   0.01542   1.33141
            A1          -0.05125  -0.00509   0.08906   0.17029
            A2           0.00283   0.05203   0.06866  -0.03759   0.14149
            A3           0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU=  1  1  1 -1  1  1  1
  Use linear search instead of GDIIS.
      Eigenvalues ---    0.00283   0.05456   0.10917   0.20270   0.82775
      Eigenvalues ---    1.34442
  RFO step:  Lambda=-2.77139606D-05 EMin= 2.83036532D-03
  Quartic linear search produced a step of  0.46138.
  Iteration  1 RMS(Cart)=  0.06144517 RMS(Int)=  0.00038742
  Iteration  2 RMS(Cart)=  0.00061486 RMS(Int)=  0.00000015
  Iteration  3 RMS(Cart)=  0.00000021 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 3.22D-13 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        5.16497   0.00030   0.07548   0.03675   0.11223   5.27720
     R2        2.25413   0.00007   0.00070  -0.00217  -0.00147   2.25267
     R3        2.24089  -0.00161   0.00289  -0.00266   0.00023   2.24112
     A1        2.37449   0.00102   0.02291   0.01653   0.03944   2.41393
     A2        3.11813  -0.00113   0.00252  -0.00187   0.00065   3.11878
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.001612     0.000450     NO
  RMS     Force            0.000913     0.000300     NO
  Maximum Displacement     0.101757     0.001800     NO
  RMS     Displacement     0.061762     0.001200     NO
  Predicted change in Energy=-4.623576D-05
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        1.956963    7.996578    5.000000
       2          8           0        4.737531    8.255233    5.000000
       3          6           0        5.550415    9.127144    5.000000
       4          8           0        6.339132   10.012811    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.792573   0.000000
      3  C    3.767105   1.192061   0.000000
      4  O    4.823754   2.377857   1.185951   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.875699   -1.484383   -0.000000
       2          8           0        0.000000    1.167336    0.000000
       3          6           0        1.032014    1.763957    0.000000
       4          8           0        2.072013    2.333941    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          48.9402574           1.3193049
 1.2846734
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       141.1154565000 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=    -0.000000    0.000000    0.000000
          Rot=    0.999844   -0.000000   -0.000000   -0.017664 Ang=  -2.02 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A') (A") (A') (A") (A') (A') (A')
 (A")
                  (A') (A') (A') (A") (A') (A') (A') (A") (A') (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  SCF Done:  E(RB3LYP) =  -1451.87817161     A.U. after   36 cycles
             NFock= 36  Conv=0.28D-08     -V/T= 2.0020
  Calling FoFJK, ICntrl=      2127 FMM=F ISym2X=1 I1Cent= 0 IOpClX= 0 NMat=1
 NMatS=1 NMatT=0.
  ***** Axes restored to original set *****
  -------------------------------------------------------------------
  Center     Atomic                   Forces (Hartrees/Bohr)
  Number     Number              X              Y              Z
  -------------------------------------------------------------------
       1       26          -0.000106299   -0.000132521   -0.000000000
       2        8          -0.000642663    0.000289174    0.000000000
       3        6           0.001783121    0.000601826    0.000000000
       4        8          -0.001034159   -0.000758479   -0.000000000
  -------------------------------------------------------------------
  Cartesian Forces:  Max     0.001783121 RMS     0.000689927
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
  Berny optimization.
  Using GEDIIS/GDIIS optimizer.
  FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
  Internal  Forces:  Max     0.001249763 RMS     0.000677158
  Search for a local minimum.
  Step number  13 out of a maximum of   20
  All quantities printed in internal units (Hartrees-Bohrs-Radians)
  Mixed Optimization -- En-DIIS/RFO-DIIS
  Swapping is turned off.
  Update second derivatives using D2CorX and points    9   10   11   12   13
  DE= -6.48D-05 DEPred=-4.62D-05 R= 1.40D+00
  TightC=F SS=  1.41D+00  RLast= 1.19D-01 DXNew= 1.1837D+00 3.5692D-01
  Trust test= 1.40D+00 RLast= 1.19D-01 DXMaxT set to 7.04D-01
  The second derivative matrix:
                           R1        R2        R3        A1        A2
            R1           0.02062
            R2           0.01171   0.82359
            R3          -0.04165  -0.00642   1.22018
            A1          -0.05323  -0.01179   0.10171   0.15692
            A2           0.00366   0.04508   0.00828  -0.02308   0.11865
            A3           0.00000   0.00000   0.00000  -0.00000  -0.00000
                           A3
            A3           0.05456
  ITU=  1  1  1  1 -1  1  1
      Eigenvalues ---    0.00203   0.05456   0.10675   0.17264   0.82675
      Eigenvalues ---    1.23179
  En-DIIS/RFO-DIIS/Sim-DIIS IScMMF=       -3 using points:    13   12
  RFO step:  Lambda=-5.87676950D-05.
  DidBck=F Rises=F RFO-DIIS coefs:    2.34773   -1.34773
  Iteration  1 RMS(Cart)=  0.08463719 RMS(Int)=  0.00079034
  Iteration  2 RMS(Cart)=  0.00120074 RMS(Int)=  0.00000054
  Iteration  3 RMS(Cart)=  0.00000081 RMS(Int)=  0.00000000
  ClnCor:  largest displacement from symmetrization is 9.77D-14 for atom     3.
  Variable       Old X    -DE/DX   Delta X   Delta X   Delta X     New X
                                  (Linear)    (Quad)   (Total)
     R1        5.27720   0.00011   0.15126  -0.00113   0.15013   5.42733
     R2        2.25267   0.00040  -0.00198   0.00106  -0.00092   2.25175
     R3        2.24112  -0.00125   0.00032  -0.00093  -0.00061   2.24051
     A1        2.41393   0.00078   0.05315   0.00325   0.05640   2.47033
     A2        3.11878  -0.00064   0.00088   0.00046   0.00133   3.12011
     A3        3.14159   0.00000   0.00000   0.00000   0.00000   3.14159
          Item               Value     Threshold  Converged?
  Maximum Force            0.001250     0.000450     NO
  RMS     Force            0.000677     0.000300     NO
  Maximum Displacement     0.135822     0.001800     NO
  RMS     Displacement     0.085203     0.001200     NO
  Predicted change in Energy=-3.011805D-05
  GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad
                           Input orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0        1.885089    7.950494    5.000000
       2          8           0        4.736381    8.294922    5.000000
       3          6           0        5.573815    9.142601    5.000000
       4          8           0        6.388757   10.003749    5.000000
  ---------------------------------------------------------------------
                     Distance matrix (angstroms):
                     1          2          3          4
      1  Fe   0.000000
      2  O    2.872019   0.000000
      3  C    3.876573   1.191577   0.000000
      4  O    4.949635   2.377065   1.185626   0.000000
  Stoichiometry    CFeO2
  Framework group  CS[SG(CFeO2)]
  Deg. of freedom     5
  Full point group                 CS      NOp   2
  Largest Abelian subgroup         CS      NOp   2
  Largest concise Abelian subgroup C1      NOp   1
                          Standard orientation:
  ---------------------------------------------------------------------
  Center     Atomic      Atomic             Coordinates (Angstroms)
  Number     Number       Type             X           Y           Z
  ---------------------------------------------------------------------
       1         26           0       -0.831772   -1.566792   -0.000000
       2          8           0        0.000000    1.182144    0.000000
       3          6           0        0.979592    1.860565    0.000000
       4          8           0        1.968566    2.514506    0.000000
  ---------------------------------------------------------------------
  Rotational constants (GHZ):          55.9056335           1.2478402
 1.2205959
  Standard basis: 6-31G (6D, 7F)
  There are    42 symmetry adapted cartesian basis functions of A'  symmetry.
  There are    14 symmetry adapted cartesian basis functions of A"
 symmetry.
  There are    42 symmetry adapted basis functions of A'  symmetry.
  There are    14 symmetry adapted basis functions of A"  symmetry.
     56 basis functions,   160 primitive gaussians,    56 cartesian basis
 functions
     24 alpha electrons       24 beta electrons
        nuclear repulsion energy       138.8453126274 Hartrees.
  NAtoms=    4 NActive=    4 NUniq=    4 SFac= 1.00D+00 NAtFMM=   60 NAOKFM=F
 Big=F
  Integral buffers will be    131072 words long.
  Raffenetti 2 integral format.
  Two-electron integral symmetry is turned on.
  One-electron integrals computed using PRISM.
  NBasis=    56 RedAO= T EigKep=  1.76D-03  NBF=    42    14
  NBsUse=    56 1.00D-06 EigRej= -1.00D+00 NBFU=    42    14
  Initial guess from the checkpoint file:  "step_000_DFT.chk"
  B after Tr=     0.000000   -0.000000    0.000000
          Rot=    0.999697    0.000000    0.000000   -0.024620 Ang=  -2.82 deg.
  Initial guess orbital symmetries:
        Occupied  (A') (A') (A') (A') (A") (A') (A') (A') (A') (A')
                  (A") (A') (A') (A') (A') (A') (A") (A') (A')
 (A")
                  (A') (A') (A") (A')
        Virtual   (A") (A') (A') (A") (A') (A") (A') (A') (A')
 (A")
                  (A') (A') (A') (A") (A') (A') (A') (A") (A') (A')
                  (A') (A') (A") (A') (A") (A') (A') (A") (A')
 (A')
                  (A') (A')
  ExpMin= 4.11D-02 ExpMax= 6.11D+04 ExpMxC= 9.18D+03 IAcc=3 IRadAn=         5
 AccDes= 0.00D+00
  Harris functional with IExCor=  402 and IRadAn=       5 diagonalized for
 initial guess.
  HarFok:  IExCor=  402 AccDes= 0.00D+00 IRadAn=         5 IDoV= 1 UseB2=F
 ITyADJ=14
  ICtDFT=  3500011 ScaDFX=  1.000000  1.000000  1.000000  1.000000
  FoFCou: FMM=F IPFlag=           0 FMFlag=      100000 FMFlg1=           0
          NFxFlg=           0 DoJE=T BraDBF=F KetDBF=T FulRan=T
          wScrn=  0.000000 ICntrl=       500 IOpCl=  0 I1Cent=   200000004 NGrid=
 0
          NMat0=    1 NMatS0=      1 NMatT0=    0 NMatD0=    1 NMtDS0=    0
 NMtDT0=    0
  Petite list used in FoFCou.
  Keep R1 ints in memory in symmetry-blocked form, NReq=2159799.
  Requested convergence on RMS density matrix=1.00D-08 within 128 cycles.
  Requested convergence on MAX density matrix=1.00D-06.
  Requested convergence on             energy=1.00D-06.
  No special actions if energy rises.
  >>>>>>>>>> Convergence criterion not met.
  SCF Done:  E(RB3LYP) =  -1451.87820815     A.U. after  129 cycles
             NFock=128  Conv=0.89D-04     -V/T= 2.0020
  Convergence failure -- run terminated.
 ```