From chemistry-request#* at *#server.ccl.net Fri Feb 25 11:53:37 2000 Received: from prserv.net (out2.prserv.net [32.97.166.32]) by server.ccl.net (8.8.7/8.8.7) with ESMTP id LAA31156 for ; Fri, 25 Feb 2000 11:53:37 -0500 From: jmmckel- at -attglobal.net Received: from attglobal.net ([32.100.232.174]) by prserv.net (out2) with SMTP id <2000022515455122902a5ufve>; Fri, 25 Feb 2000 15:45:51 +0000 Message-ID: <38B660D8.AE4642F:~at~:attglobal.net> Date: Fri, 25 Feb 2000 11:00:41 +0000 Reply-To: jmmckel "-at-" attglobal.net X-Mailer: Mozilla 4.7 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: Mike Peleah CC: chemistry {*at*} ccl.net Subject: Re: CCL:Charges on atoms References: <0527.000225 -A_T- mnc.md> Content-Type: multipart/alternative; boundary="------------02A81BD3F5051C0CE73B9BCC" --------------02A81BD3F5051C0CE73B9BCC Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Mike, I made a mistake earlier.... Corrected form for Mulliken.. Subject: Re: CCL:Charges on atoms Date: Fri, 25 Feb 2000 09:24:06 +0000 From: jmmckel -x- at -x- attglobal.net To: Mike Peleah References: 1 Mike, I suspect that different types of charge are being calculated, as you might be thinking. ZDO electron population = Sum over orbitals i on atom A = sum P(i,i) Mulliken = Sum over all orbitals j to give the diagonal of P' and then over all orbitals i on A [see next line] S(i,j)*[S(-0.5)PS(-0.5)](i,j) John McKelvey Mike Peleah wrote: > +======================---------------- --- -- - - - - . > | Dear chemistry, > : > >. > > I calculated Co(H2O)6 molecule using INDO1/S method in ArgusLab > and ZINDO/S method in HyperChem. > > I noticed that in case of open-shell (charge of complex +2) both > ArgusLab and HyperChem gave different charges on different O atoms. In > case of closed-shell (charge of complex +3) both ArgusLab and > HyperChem gave symmetrical charges on O atoms. But in case of > HyperChem charge on Co atom is significally lower than in case of > ArgusLab and ab initio calculations using PC GAMESS: > > GAMESS ArgusLab HyperChem > STO-6G INDO1/s ZINDO/S > Co 1.455494 1.3606 0.474617 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > > Could anybody help me? > > Also, I will be thankfull if somebody point me out where could I find > definition of "ZDO charges" and "Mulliken atomic charges" > > Best regards, > Mike mailto:mike |-at-| mnc.md > . > : > | > >. - - - - -- --- ----------------======================+ > > -= This is automatically added to each message by mailing script =- > CHEMISTRY-: at :-ccl.net -- To Everybody | CHEMISTRY-REQUEST-: at :-ccl.net -- To Admins > MAILSERV {*at*} ccl.net -- HELP CHEMISTRY or HELP SEARCH > CHEMISTRY-SEARCH-: at :-ccl.net -- archive search | Gopher: gopher.ccl.net 70 > Ftp: ftp.ccl.net | WWW: http://www.ccl.net/chemistry/ | Jan: jkl /at\ccl.net Mike Peleah wrote: > +======================---------------- --- -- - - - - . > | Dear chemistry, > : > >. > > I calculated Co(H2O)6 molecule using INDO1/S method in ArgusLab > and ZINDO/S method in HyperChem. > > I noticed that in case of open-shell (charge of complex +2) both > ArgusLab and HyperChem gave different charges on different O atoms. In > case of closed-shell (charge of complex +3) both ArgusLab and > HyperChem gave symmetrical charges on O atoms. But in case of > HyperChem charge on Co atom is significally lower than in case of > ArgusLab and ab initio calculations using PC GAMESS: > > GAMESS ArgusLab HyperChem > STO-6G INDO1/s ZINDO/S > Co 1.455494 1.3606 0.474617 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > O -0.406453 -0.4417 -0.189609 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > H 0.331935 0.3574 0.305253 > > Could anybody help me? > > Also, I will be thankfull if somebody point me out where could I find > definition of "ZDO charges" and "Mulliken atomic charges" > > Best regards, > Mike mailto:mike "-at-" mnc.md > . > : > | > >. - - - - -- --- ----------------======================+ > > -= This is automatically added to each message by mailing script =- > CHEMISTRY \\at// ccl.net -- To Everybody | CHEMISTRY-REQUEST \\at// ccl.net -- To Admins > MAILSERV[ AT ]ccl.net -- HELP CHEMISTRY or HELP SEARCH > CHEMISTRY-SEARCH ^at^ ccl.net -- archive search | Gopher: gopher.ccl.net 70 > Ftp: ftp.ccl.net | WWW: http://www.ccl.net/chemistry/ | Jan: jkl # - at - # ccl.net --------------02A81BD3F5051C0CE73B9BCC Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Mike,

I made a mistake earlier.... Corrected form for Mulliken..

Subject:
            Re: CCL:Charges on atoms
       Date:
            Fri, 25 Feb 2000 09:24:06 +0000
      From:
            jmmckel \\at// attglobal.net
        To:
            Mike Peleah <mike $#at#$ mnc.md>
 References:
            1
 
 
 

Mike,

I suspect that different types of charge are being calculated, as you might be
thinking.

ZDO electron population = Sum over orbitals i on atom A = sum P(i,i)

Mulliken                       =  Sum over all  orbitals j to give the diagonal of P' and then over all orbitals i on A  [see next line]

             S(i,j)*[S(-0.5)PS(-0.5)](i,j)
 

John McKelvey

Mike Peleah wrote:

> +======================---------------- --- -- -  -   -     -        .
> | Dear chemistry,
> :
> >.
>
> I  calculated  Co(H2O)6  molecule  using  INDO1/S  method in ArgusLab
> and ZINDO/S method in HyperChem.
>
> I  noticed  that  in  case  of  open-shell (charge of complex +2) both
> ArgusLab and HyperChem gave different charges on different O atoms. In
> case  of  closed-shell  (charge  of  complex  +3)  both  ArgusLab  and
> HyperChem  gave  symmetrical  charges  on  O  atoms.  But  in  case of
> HyperChem  charge  on  Co  atom  is significally lower than in case of
> ArgusLab and ab initio calculations using PC GAMESS:
>
>           GAMESS      ArgusLab      HyperChem
>           STO-6G       INDO1/s       ZINDO/S
> Co       1.455494      1.3606        0.474617
> O       -0.406453     -0.4417       -0.189609
> O       -0.406453     -0.4417       -0.189609
> O       -0.406453     -0.4417       -0.189609
> O       -0.406453     -0.4417       -0.189609
> O       -0.406453     -0.4417       -0.189609
> O       -0.406453     -0.4417       -0.189609
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
> H        0.331935      0.3574        0.305253
>
> Could anybody help me?
>
> Also, I will be thankfull if somebody point me out where could I find
> definition of "ZDO charges" and "Mulliken atomic charges"
>
> Best regards,
>  Mike                          mailto:mike \\at// mnc.md
>                                                                      .
>                                                                      :
>                                                                      |
> >.        -     -   -  - -- --- ----------------======================+
>
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Mike Peleah wrote:

+======================---------------- --- -- -  -   -     -        .
| Dear chemistry,
:
>.

I  calculated  Co(H2O)6  molecule  using  INDO1/S  method in ArgusLab
and ZINDO/S method in HyperChem.

I  noticed  that  in  case  of  open-shell (charge of complex +2) both
ArgusLab and HyperChem gave different charges on different O atoms. In
case  of  closed-shell  (charge  of  complex  +3)  both  ArgusLab  and
HyperChem  gave  symmetrical  charges  on  O  atoms.  But  in  case of
HyperChem  charge  on  Co  atom  is significally lower than in case of
ArgusLab and ab initio calculations using PC GAMESS:

          GAMESS      ArgusLab      HyperChem
          STO-6G       INDO1/s       ZINDO/S
Co       1.455494      1.3606        0.474617
O       -0.406453     -0.4417       -0.189609
O       -0.406453     -0.4417       -0.189609
O       -0.406453     -0.4417       -0.189609
O       -0.406453     -0.4417       -0.189609
O       -0.406453     -0.4417       -0.189609
O       -0.406453     -0.4417       -0.189609
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253
H        0.331935      0.3574        0.305253

Could anybody help me?

Also, I will be thankfull if somebody point me out where could I find
definition of "ZDO charges" and "Mulliken atomic charges"

Best regards,
 Mike                          mailto:mike /at\mnc.md
                                                                     .
                                                                     :
                                                                     |
>.        -     -   -  - -- --- ----------------======================+

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