From owner-chemistry@ccl.net Wed Oct 3 04:35:01 2012 From: "Prija Ponnan prija.ponnan[A]gmail.com" To: CCL Subject: CCL: Decoy Dataset for Bcr-Abl Kinase Message-Id: <-47699-121003042829-850-dVnRW+CHROUXSqjyGFt9/w() server.ccl.net> X-Original-From: Prija Ponnan Content-Type: multipart/alternative; boundary=047d7b339859e4aacc04cb236b61 Date: Wed, 3 Oct 2012 13:57:41 +0530 MIME-Version: 1.0 Sent to CCL by: Prija Ponnan [prija.ponnan|,|gmail.com] --047d7b339859e4aacc04cb236b61 Content-Type: text/plain; charset=ISO-8859-1 Hello Can anyone help me out with commercial/non-commercial decoy datasets for Bcr-Abl kinase. Thank You Prija Ponnan --047d7b339859e4aacc04cb236b61 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hello

Can anyone help me out with commercial/non-commercial decoy da= tasets for Bcr-Abl kinase.

Thank You

Prija Ponn= an=20
=A0

--047d7b339859e4aacc04cb236b61-- From owner-chemistry@ccl.net Wed Oct 3 07:04:01 2012 From: "Sergio Manzetti sergio.manzetti*_*gmx.com" To: CCL Subject: CCL: Resonance energy Message-Id: <-47700-121003060433-3977-dzJt3c2fwOsfLWm6SuBJdw-#-server.ccl.net> X-Original-From: "Sergio Manzetti" Content-Type: multipart/alternative; boundary="========GMXBoundary93601349258656871059" Date: Wed, 03 Oct 2012 12:04:16 +0200 MIME-Version: 1.0 Sent to CCL by: "Sergio Manzetti" [sergio.manzetti|a|gmx.com] --========GMXBoundary93601349258656871059 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Dear CCLrs, how can one extract the parameters of "resonance energy" (Randic, 2003) from a SCF calculation of a neutral ring system? Thanks Sergio --========GMXBoundary93601349258656871059 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Dear CCL= rs, how can one extract the parameters of "resonance energy"  (Randic,= 2003) from a  SCF calculation  of a neutral ring system?
= =20
=20 Thanks
=20
=20 Sergio
--========GMXBoundary93601349258656871059-- From owner-chemistry@ccl.net Wed Oct 3 08:08:01 2012 From: "Jan H Jensen jhjensen ~ chem.ku.dk" To: CCL Subject: CCL: Computational Chemistry Highlights: September issue Message-Id: <-47701-121003033046-32262-6rjfma+RD+CcVDiUFt00Vg..server.ccl.net> X-Original-From: "Jan H Jensen" Date: Wed, 3 Oct 2012 03:30:45 -0400 Sent to CCL by: "Jan H Jensen" [jhjensen-x-chem.ku.dk] The September issue of Computational Chemistry Highlights is out. http://www.compchemhighlights.org/2012_09_01_archive.html CCH is an overlay journal that identifies the most important papers in computational and theoretical chemistry published in the last 1-2 years. CCH is not affiliated with any publisher: it is a free resource run by scientists for scientists. Table of content for this issue features contributions from CCH editors Steven Bachrach, G. Andres Cisneros, and Jan Jensen: Stable Alkanes Containing Very Long CarbonCarbon Bonds http://www.compchemhighlights.org/2012/09/stable-alkanes-containing-very-long.html A simple, exact DFT embedding exchange http://www.compchemhighlights.org/2012/09/a-simple-exact-dft-embedding-exchange.html Dynamics, transition states, and timing of bond formation in Diels-Alder reaktions http://www.compchemhighlights.org/2012/09/dynamics-transition-states-and-timing.html The Last Globally Stable Extended Alkane http://www.compchemhighlights.org/2012/09/the-last-globally-stable-extended-alkane.html Dispersion corrections and bio-molecular structure and reactivity http://www.compchemhighlights.org/2012/09/dispersion-corrections-and-bio.html Interested in more? There are many ways to subscribe to CCH updates. http://www.compchemhighlights.org/p/get-cch-updates.html From owner-chemistry@ccl.net Wed Oct 3 08:43:00 2012 From: "Marcin Sterniczuk m.sterniczuk_+_ichtj.waw.pl" To: CCL Subject: CCL:G: Supramolecular Method (with BSSE) and Energy of Interaction Message-Id: <-47702-121003054342-690-nRtE7rAGxnkKCb45fbJ4rg/a\server.ccl.net> X-Original-From: "Marcin Sterniczuk" Date: Wed, 3 Oct 2012 05:43:40 -0400 Sent to CCL by: "Marcin Sterniczuk" [m.sterniczuk^^ichtj.waw.pl] Hello, I want calculate energy interaction beetwen 2 molecules with supramolecular methods (of course with BSSE correction). In Gaussian we define a spin and charge for our system and parts of system beetwen we want compute energy interaction. For example in NaCl we define 0 1 (0-charge 1-spin) for molecule NaCl, and next 1 2 for Na+ and -1 2 for Cl-. Then the program compute energy interaction beetwen this atoms (only culombic?). This energy is probably only culombic. Probably NaCl have also little part of energy from "covalent" interaction (in every bond we have not only ionic or covalent bond but a some mix of them). It is possible to use supramolecular method to compute balance beetween ion and covalent character of bond? If we define 0 for charge and 1 for spin for Na and also Cl atom when we compute NaCl bond energy then the interaction energy is different in output file. Of course we usually now which charge and spin give in our partial atoms or parts of bigger molecule, but not every time. From owner-chemistry@ccl.net Wed Oct 3 10:41:00 2012 From: "Robert W. Gora robert.gora()pwr.wroc.pl" To: CCL Subject: CCL: Resonance energy Message-Id: <-47703-121003104018-16697-T6LRId/j8ATa682wA+PshA * server.ccl.net> X-Original-From: "Robert W. Gora" Content-type: multipart/mixed; boundary="Boundary_(ID_+Dxu7ZOncyfUCEMrUlrMHQ)" Date: Wed, 03 Oct 2012 16:40:11 +0200 (CEST) MIME-version: 1.0 Sent to CCL by: "Robert W. Gora" [robert.gora-#-pwr.wroc.pl] This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --Boundary_(ID_+Dxu7ZOncyfUCEMrUlrMHQ) Content-type: TEXT/PLAIN; charset=ISO-8859-15; format=flowed Content-transfer-encoding: 8BIT > Dear CCLrs, how can one extract the parameters of "resonance energy" > (Randic, 2003) from a SCF calculation of a neutral ring system? One cannot, in my opinion you need a vb code for that :) Have a look at Rashid et al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.1021/jp211105t] Try van Lenthe's from gamess(uk) or Cooper's SCVB from Molcas/Molpro. Cheers, Robert -- Robert W. Góra, Theoretical Chemistry Group, ICHFiT, WUT [http://zcht.info] [http://www.researchgate.net/profile/Robert_Gora] [http://www.researcherid.com/rid/B-3919-2010] --Boundary_(ID_+Dxu7ZOncyfUCEMrUlrMHQ)-- From owner-chemistry@ccl.net Wed Oct 3 11:18:00 2012 From: "Sergio Manzetti sergio.manzetti^-^gmx.com" To: CCL Subject: CCL: Resonance energy Message-Id: <-47704-121003111103-29464-+PuBWMeW6n3BXZDYsiUzyw__server.ccl.net> X-Original-From: "Sergio Manzetti" Content-Type: multipart/alternative; boundary="========GMXBoundary93581349277053427384" Date: Wed, 03 Oct 2012 17:10:53 +0200 MIME-Version: 1.0 Sent to CCL by: "Sergio Manzetti" [sergio.manzetti{=}gmx.com] --========GMXBoundary93581349277053427384 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Difficult indeed Roberto! Is there a way of mapping the resonance energy or conjugation pattern straight from a SCF calculation? ----- Original Message ----- > From: Robert W. Gora robert.gora()pwr.wroc.pl Sent: 10/03/12 04:40 PM To: Manzetti, Sergio Subject: CCL: Resonance energy > Dear CCLrs, how can one extract the parameters of "resonance energy" > (Randic, 2003) from a SCF calculation of a neutral ring system? One cannot, in my opinion you need a vb code for that :) Have a look at Rashid et al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.1021/jp211105t] Try van Lenthe's from gamess(uk) or Cooper's SCVB from Molcas/Molpro. Cheers, Robert -- Robert W. Góra, Theoretical Chemistry Group, ICHFiT, WUT [http://zcht.info] [http://www.researchgate.net/profile/Robert_Gora] [http://www.researcherid.com/rid/B-3919-2010] --========GMXBoundary93581349277053427384 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Difficul= t indeed Roberto!
=20
=20 Is there a way of mapping the resonance energy or conjugation pattern strai= ght from a SCF calculation?
=20
=20
=20
=20

=20 =C2=A0

=20
=20

=20 ----- = Original Message -----

=20

=20 From: = Robert W. Gora robert.gora()pwr.wroc.pl

=20

=20 Sent: = 10/03/12 04:40 PM

=20

=20 To: Ma= nzetti, Sergio

=20

=20 Subjec= t: CCL: Resonance energy

=20
=20
=20
=20
=20
> Dear CCLrs, how can one extract the parameters of "resonance energy"=
=20
> (Randic, 2003) from a SCF calculation of a neutral ring system?=20

One cannot, in my opinion you need a vb code for that :) Have a look at Ras=
hid=20
et al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.1021/jp211105t]=20
Try van Lenthe's from gamess(uk) or Cooper's SCVB from Molcas/Molpro.=20

Cheers,=20
Robert=20

--=20
Robert W. G=C3=B3ra, Theoretical Chemistry Group, ICHFiT, WUT [http://zcht.=
info]=20
[http://www.researchgate.net/profile/Robert_Gora]=20
[http://www.researcherid.com/rid/B-3919-2010]
=20
=20
=20
=20

=20 =C2=A0

=20
=20
--========GMXBoundary93581349277053427384-- From owner-chemistry@ccl.net Wed Oct 3 12:37:00 2012 From: "Robert W. Gora robert.gora%%pwr.wroc.pl" To: CCL Subject: CCL: Resonance energy Message-Id: <-47705-121003123547-16531-tuBSF9fsUooJQWlnT6wr2w|server.ccl.net> X-Original-From: "Robert W. Gora" Content-type: multipart/mixed; boundary="Boundary_(ID_b8TUY8Yc2PrgYRHZtyyM2w)" Date: Wed, 03 Oct 2012 18:35:40 +0200 (CEST) MIME-version: 1.0 Sent to CCL by: "Robert W. Gora" [robert.gora-x-pwr.wroc.pl] This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --Boundary_(ID_b8TUY8Yc2PrgYRHZtyyM2w) Content-type: TEXT/PLAIN; charset=utf-8; format=flowed Content-transfer-encoding: 8BIT > Difficult indeed Roberto! > > Is there a way of mapping the resonance energy or conjugation pattern > straight from a SCF calculation? :) Well nothing out of the box, but you could contact Yirong Mo who is using a method called block localized wavefunction approach (BLW), but actually what you can get is a mixture of delocalization and resonance contributions - something close to Huckel's delocalization energy. You will find the references in the Rashid's article I have sent you. Best, Roberto > ----- Original Message ----- >> From: Robert W. Gora robert.gora()pwr.wroc.pl > Sent: 10/03/12 04:40 PM To: Manzetti, Sergio Subject: CCL: Resonance energy > > > Dear CCLrs, how can one extract the parameters of "resonance energy" > > > (Randic, 2003) from a SCF calculation of a neutral ring system? One > > cannot, in my opinion you need a vb code for that :) Have a look at Rashid > > et al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.1021/jp211105t] Try > > van Lenthe's from gamess(uk) or Cooper's SCVB from Molcas/Molpro. Cheers, > > Robert -- Robert W. Góra, Theoretical Chemistry Group, ICHFiT, WUT > > [http://zcht.info] [http://www.researchgate.net/profile/Robert_Gora] > > [http://www.researcherid.com/rid/B-3919-2010] -- Robert W. Góra, Theoretical Chemistry Group, ICHFiT, WUT [http://zcht.info] [http://www.researchgate.net/profile/Robert_Gora] [http://www.researcherid.com/rid/B-3919-2010] --Boundary_(ID_b8TUY8Yc2PrgYRHZtyyM2w)-- From owner-chemistry@ccl.net Wed Oct 3 14:00:00 2012 From: "Sergio Manzetti sergio.manzetti[-]gmx.com" To: CCL Subject: CCL: Resonance energy Message-Id: <-47706-121003134929-24294-/jgHoIzzWk9UoKMjo01e8g/./server.ccl.net> X-Original-From: "Sergio Manzetti" Content-Type: multipart/alternative; boundary="========GMXBoundary93591349286558367240" Date: Wed, 03 Oct 2012 19:49:18 +0200 MIME-Version: 1.0 Sent to CCL by: "Sergio Manzetti" [sergio.manzetti*|*gmx.com] --========GMXBoundary93591349286558367240 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Is this still a programming approach, or it a estimation from SCF data? (I am not a programmer) Cheers ----- Original Message ----- > From: Robert W. Gora robert.gora%%pwr.wroc.pl Sent: 10/03/12 06:35 PM To: Manzetti, Sergio Subject: CCL: Resonance energy > Difficult indeed Roberto! > > Is there a way of mapping the resonance energy or conjugation pattern > straight from a SCF calculation? :) Well nothing out of the box, but you could contact Yirong Mo who is using a method called block localized wavefunction approach (BLW), but actually what you can get is a mixture of delocalization and resonance contributions - something close to Huckel's delocalization energy. You will find the references in the Rashid's article I have sent you. Best, Roberto > ----- Original Message ----- >> From: Robert W. Gora robert.gora()pwr.wroc.pl > Sent: 10/03/12 04:40 PM To: Manzetti, Sergio Subject: CCL: Resonance energy > > > Dear CCLrs, how can one extract the parameters of "resonance energy" > > > (Randic, 2003) from a SCF calculation of a neutral ring system? One > > cannot, in my opinion you need a vb code for that :) Have a look at Rashid > > et al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.1021/jp211105t] Try > > van Lenthe's from gamess(uk) or Cooper's SCVB from Molcas/Molpro. Cheers, > > Robert -- Robert W. Góra, Theoretical Chemistry Group, ICHFiT, WUT > > [http://zcht.info] [http://www.researchgate.net/profile/Robert_Gora] > > [http://www.researcherid.com/rid/B-3919-2010] -- Robert W. Góra, Theoretical Chemistry Group, ICHFiT, WUT [http://zcht.info] [http://www.researchgate.net/profile/Robert_Gora] [http://www.researcherid.com/rid/B-3919-2010] --========GMXBoundary93591349286558367240 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
= =20 Is this still a programming approach, or it a estimation from SCF data?
=20
=20 (I am not a programmer)
=20
=20 Cheers
=20

=20 =C2=A0

=20
=20

=20 ----- = Original Message -----

=20

=20 From: = Robert W. Gora robert.gora%%pwr.wroc.pl

=20

=20 Sent: = 10/03/12 06:35 PM

=20

=20 To: Ma= nzetti, Sergio

=20

=20 Subjec= t: CCL: Resonance energy

=20
=20
=20
=20
=20
> Difficult indeed Roberto!=20
>=20
> Is there a way of mapping the resonance energy or conjugation pattern=
=20
> straight from a SCF calculation?=20

:) Well nothing out of the box, but you could contact Yirong Mo who is usin=
g a=20
method called block localized wavefunction approach (BLW), but actually wha=
t=20
you can get is a mixture of delocalization and resonance contributions -=20
something close to Huckel's delocalization energy. You will find the=20
references in the Rashid's article I have sent you.=20

Best,=20
Roberto=20

> ----- Original Message -----=20
>> From: Robert W. Gora robert.gora()pwr.wroc.pl=20
> Sent: 10/03/12 04:40 PM To: Manzetti, Sergio Subject: CCL: Resonance e=
nergy=20
>=20
> > Dear CCLrs, how can one extract the parameters of "resonance ener=
gy" >=20
> > (Randic, 2003) from a SCF calculation of a neutral ring system? O=
ne=20
> > cannot, in my opinion you need a vb code for that :) Have a look =
at Rashid=20
> > et al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.1021/jp2111=
05t] Try=20
> > van Lenthe's from gamess(uk) or Cooper's SCVB from Molcas/Molpro.=
 Cheers,=20
> > Robert -- Robert W. G=C3=B3ra, Theoretical Chemistry Group, ICHFi=
T, WUT=20
> > [http://zcht.info] [http://www.researchgate.net/profile/Robert_Go=
ra]=20
> > [http://www.researcherid.com/rid/B-3919-2010]=20

--=20
Robert W. G=C3=B3ra, Theoretical Chemistry Group, ICHFiT, WUT [http://zcht.=
info]=20
[http://www.researchgate.net/profile/Robert_Gora]=20
[http://www.researcherid.com/rid/B-3919-2010]
=20
=20
=20
=20

=20 =C2=A0

=20
=20
--========GMXBoundary93591349286558367240-- From owner-chemistry@ccl.net Wed Oct 3 17:33:01 2012 From: "Salter-Duke, Brian James - brian.james.duke*gmail.com" To: CCL Subject: CCL:G: Resonance energy Message-Id: <-47707-121003171656-14746-fBht3qFGN25AyEERTNH8gw__server.ccl.net> X-Original-From: "Salter-Duke, Brian James -" Content-Disposition: inline Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=windows-1252 Date: Thu, 4 Oct 2012 07:16:45 +1000 MIME-Version: 1.0 Sent to CCL by: "Salter-Duke, Brian James -" [brian.james.duke^^^gmail.com] On Wed, Oct 03, 2012 at 04:40:11PM +0200, Robert W. Gora robert.gora()pwr.wroc.pl wrote: > >Dear CCLrs, how can one extract the parameters of "resonance energy" > >(Randic, 2003) from a SCF calculation of a neutral ring system? > > One cannot, in my opinion you need a vb code for that :) Have a look at Rashid > et al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.1021/jp211105t] > Try van Lenthe's from gamess(uk) or Cooper's SCVB from Molcas/Molpro. An excellent paper indeed. You can also try VB2000, which is now released with GAMESS(US), and also has a stand-alone version. I am working on a new way of getting VB2000 to work with Gaussian. VB2000 can also calculate SCVB directly [See Karadakov et al J. Phys. Chem. A, 2012, 116 (26), pp 7238–7244], which uses both Cooper's Molpro code and VB2000]. In fairness, as I am an author of VB2000, many people use the XMVB code. I am not sure whether Gordon Gallup's CRUNCH program is still available, That is pretty well all the VB programs. See http://en.wikipedia.org/wiki/Valence_bond_codes. Cheers, Brian. > Cheers, > Robert > > -- > Robert W. Góra, Theoretical Chemistry Group, ICHFiT, WUT [http://zcht.info] > [http://www.researchgate.net/profile/Robert_Gora] > [http://www.researcherid.com/rid/B-3919-2010] -- Brian Salter-Duke (Brian Duke) Brian.Salter-Duke,,monash.edu Adjunct Associate Professor Monash Institute of Pharmaceutical Sciences Monash University Parkville Campus, VIC 3052, Australia From owner-chemistry@ccl.net Wed Oct 3 19:03:00 2012 From: "=?UTF-8?Q?Adri=C3=A0_Cereto_Massagu=C3=A9?= adrian.cereto{}gmail.com" To: CCL Subject: CCL: Decoy Dataset for Bcr-Abl Kinase Message-Id: <-47708-121003173308-15799-rVN79bl87oA1GRUx2nLK0A|*|server.ccl.net> X-Original-From: =?UTF-8?Q?Adri=C3=A0_Cereto_Massagu=C3=A9?= Content-Type: multipart/alternative; boundary=14dae9340ec120082b04cb2e625a Date: Wed, 3 Oct 2012 23:32:41 +0200 MIME-Version: 1.0 Sent to CCL by: =?UTF-8?Q?Adri=C3=A0_Cereto_Massagu=C3=A9?= [adrian.cereto%a%gmail.com] --14dae9340ec120082b04cb2e625a Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello, If you have a set of known active ligands (try BindingDBfor that), you can create your own set of decoys using DecoyFinder . I hope it helps, Adri=C3=A0 2012/10/3 Prija Ponnan prija.ponnan[A]gmail.com > Hello > > Can anyone help me out with commercial/non-commercial decoy datasets for > Bcr-Abl kinase. > > Thank You > > Prija Ponnan > > > --14dae9340ec120082b04cb2e625a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello,

If you have a set of known active ligands (try=C2=A0 BindingDB for that), you can create your = own set of decoys using DecoyFinder.

I hope it helps,

Adri=C3=A0

20= 12/10/3 Prija Ponnan prija.ponnan[A]gmail.com<= /a> <owner-chemistry.:.ccl.net>
Hello

Can anyone help me out with com= mercial/non-commercial decoy datasets for Bcr-Abl kinase.

Thank You<= span class=3D"HOEnZb">

Prija Ponnan=20
=C2=A0


--14dae9340ec120082b04cb2e625a-- From owner-chemistry@ccl.net Wed Oct 3 21:12:01 2012 From: "Amy Austin amy_jean_austin!^!yahoo.com" To: CCL Subject: CCL: Resonance energy Message-Id: <-47709-121003191054-20903-UGblJhHCRhLlm/aY0tUb9g+/-server.ccl.net> X-Original-From: Amy Austin Content-Type: multipart/alternative; boundary="1073417382-1635669292-1349305847=:68944" Date: Wed, 3 Oct 2012 16:10:47 -0700 (PDT) MIME-Version: 1.0 Sent to CCL by: Amy Austin [amy_jean_austin.:.yahoo.com] --1073417382-1635669292-1349305847=:68944 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Hi Sergio,=0A=0AMaybe my thinking is too simplistic. It seems like you coul= d calculate the predicted value for the enthalpy of complete hydrogenation = of your system which would be N times (N=3D# double bonds) that of one doub= le bond). Then subtract the actual predicted value for the complete hydroge= nation (which will be less due to the resonance stabilization). That differ= ence should be the resonance energy of the system.=0A=0AOpinions to this te= chnique are welcome - Please reply privately.=0A=0AI don't recommend using = HF values for the resonance energy. I think you need to include instantaneo= us correlation at some level in order to have meaningful results. If you ne= ed to conserve on CPU time, I would recommend a DFT.=0A=0AHope this helps!= =0A=0AAmy=0A=0A=0A=0A=0A________________________________=0A From: Sergio Ma= nzetti sergio.manzetti^-^gmx.com =0ATo: "Austin, A= my J " =0ASent: Wednesday, October 3, 2= 012 11:10 AM=0ASubject: CCL: Resonance energy=0A =0A=0ADifficult indeed Rob= erto!=0A=0AIs there a way of mapping the resonance energy or conjugation pa= ttern straight from a SCF calculation?=0A=0A=0A=0A=0A=A0=0A----- Original M= essage -----=0A>From: Robert W. Gora robert.gora()pwr.wroc.pl=0A>Sent: 10/0= 3/12 04:40 PM=0A>To: Manzetti, Sergio =0A>Subject: CCL: Resonance energy=0A= >=0A>> Dear CCLrs, how can one extract the parameters of "resonance energy"= =0A> (Randic, 2003) from a SCF calculation of a neutral ring system? One = cannot, in my opinion you need a vb code for that :) Have a look at Rashid = =0Aet al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.1021/jp211105t] = =0ATry van Lenthe's from gamess(uk) or Cooper's SCVB from Molcas/Molpro. C= heers, =0ARobert -- =0ARobert W. G=F3ra, Theoretical Chemistry Group, ICHF= iT, WUT [http://zcht.info] =0A[http://www.researchgate.net/profile/Robert_G= ora] =0A[http://www.researcherid.com/rid/B-3919-2010] --1073417382-1635669292-1349305847=:68944 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Hi Sergio,

May= be my thinking is too simplistic. It seems like you could calculate the pre= dicted value for the enthalpy of complete hydrogenation of your system whic= h would be N times (N=3D# double bonds) that of one double bond). Then subt= ract the actual predicted value for the complete hydrogenation (which will = be less due to the resonance stabilization). That difference should be the = resonance energy of the system.

Opinions to this technique are welco= me - Please reply privately.

I don't recommend using HF values for t= he resonance energy. I think you need to include instantaneous correlation = at some level in order to have meaningful results. If you need to conserve = on CPU time, I would recommend a DFT.

Hope this helps!

Amy



From: Sergio Manzetti sergio.manzett= i^-^gmx.com <owner-chemistry..ccl.net>
To: "Austin, Amy J " <amy_jean_austin..yaho= o.com>
Sent: Wedne= sday, October 3, 2012 11:10 AM
Su= bject: CCL: Resonance energy

=0A
Diff= icult indeed Roberto!
=0A
=0AIs there a way of mapping the resonanc= e energy or conjugation pattern straight from a SCF calculation?
=0A =0A
=0A
=0A
=0A=09  =0A
=0A=09
=0A=09=09----- Original Messa= ge -----
=0A=09
= =0A=09=09From: Robert W. Gora robert.gora()pwr.wroc.pl
=0A=09
=0A=09=09Sent: 10/03/12 04:40 PM
=0A=09 =0A=09=09To: Manzetti, Sergio =
=0A=09
=0A=09=09Subject: CCL: Res= onance energy
=0A=09
=0A=09
=0A=09=09
=0A= =09=09=09
 =0A> Dear CCLrs, how can one extract the parameters of "resonance =
energy" =0A> (Randic, 2003) from a SCF calculation of a neutral ring sys=
tem? =0A=0AOne cannot, in my opinion you need a vb code for that :) Have a =
look at Rashid =0Aet al. J. Phys. Chem. A 116, 4778-4788 (2012) [DOI 10.102=
1/jp211105t] =0ATry van Lenthe's from gamess(uk) or Cooper's SCVB from Molc=
as/Molpro. =0A=0ACheers, =0ARobert =0A=0A-- =0ARobert W. G=F3ra, Theoretica=
l Chemistry Group, ICHFiT, WUT [http://zcht.info] =0A[http://www.researchga=
te.net/profile/Robert_Gora] =0A[http://www.researcherid.com/rid/B-3919-2010=
]
=0A=09=09
=0A=09
=0A =0A
=0A=09 
=0A
=0A
=0A
=

=
--1073417382-1635669292-1349305847=:68944--