Re: Transition state opt. in CADPAC
Pertinent keywords:
OPTIMISE SADDLE BERNY
Sample job deck follows:
Gene
++++++++++++++++++++++++++++++++++++++++
Eugene D. Fleischmann, Ph.D.
Computational Chemist
Cray Research, Inc.
(301)595-2695
gene %-% at %-% eastrg2.cray.com
++++++++++++++++++++++++++++++++++++++++
MAXMEM 3000000
CALC
TITLE
Chloroform
CHARGE 0
MULTIPLICITY 1
DIHEDRAL NEW
VARIABLES
BOND2 1.020000 A
BOND3 1.760000 A
BOND4 1.760000 A
BOND5 1.760000 A
ANGLE3 109.500000 D
ANGLE4 109.500000 D
ANGLE5 109.500000 D
TOR3 0.000000 D
TOR4 -120.000000 D
TOR5 120.000000 D
END
ATOMS
X -1 1 0 0
Y -1 0 1 0
Z -1 0.000000 0.000000 -1.020000
C1 6 0 0 0
LIBRARY CSTO3G
END
H2 1 LC C1 Z BOND2
LIBRARY HSTO3G
END
Cl3 17 TCT C1 H2 X BOND3 ANGLE3 TOR3
LIBRARY CLSTO3G
END
Cl4 17 TCT C1 H2 Cl3 BOND4 ANGLE4 TOR4
LIBRARY CLSTO3G
END
Cl5 17 TCT C1 H2 Cl3 BOND5 ANGLE5 TOR5
LIBRARY CLSTO3G
END
END
CLOSED
CONVERGE 7
MAXIT 50
GUESS MINGUESS
DIIS ON
SECDER
START
FCM
OPTIMIZE SADDLE BFGS
SKIP INTEGRALS SCF
NUMGRAD 10
GRADTOL 4
START
ORIGIN COM
PROPERTY
START
FINISH