From owner-chemistry@ccl.net Sat Jun 9 05:38:00 2007 From: "paritosh mondal paritos++tezu.ernet.in" To: CCL Subject: CCL: Computational chemistry Message-Id: <-34447-070609053327-2291-JzBuRS5Ru5KE5tbV9MHSfQ a server.ccl.net> X-Original-From: "paritosh mondal" Date: Sat, 9 Jun 2007 05:33:15 -0400 Sent to CCL by: "paritosh mondal" [paritos : tezu.ernet.in] Hi, With GAMESS program, I was tring for optimization of a 5T cluster of zeolite. I tried optimization keeping the coordinate of dangling atoms fixed. In the input files, I mention IFCART= Identity no. of all the atoms to be fixed. Every time message comes as "constant list is too long" I wanted to fixed the coordinates of 12 atoms. What to do? Please help me. Paritosh Mondal paritos#%#tezu.ernet.in Department of Chemical Sciences Tezpur University Tezpur Assam India-784028 From owner-chemistry@ccl.net Sat Jun 9 06:13:00 2007 From: "Dr. Alexander Hofmann ah**chemie.hu-berlin.de" To: CCL Subject: CCL:G: post-Hartree claculations, advice needed Message-Id: <-34448-070609042238-28331-Kgag8lIxvL3+EqNaX/G/SA(!)server.ccl.net> X-Original-From: "Dr. Alexander Hofmann" Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Date: Sat, 09 Jun 2007 08:49:16 +0200 MIME-Version: 1.0 Sent to CCL by: "Dr. Alexander Hofmann" [ah,chemie.hu-berlin.de] Dear Matthias, I'd like to devide your question into two parts: - closed shell - open shell closed shell: - Skip all configuration interaction (CI) methods. They are not size consistent and will drive you crazy in case of dimers and so on. - The Moeller-Plesset series is a good start for having correlation beyond DFT, which is important for van der Waals interaction (Ar2). Since CC scales similar like the MP series, I'd suggest to go along with CC. It's often the better choice for less cost, especially because you want (!) to consider triples excitations in your method. Just benchmark a little with your pet Ar2 ... Appropriate codes are ACESII (http://www.aces2.de) or MOLPRO (http://www.molpro.net). The former code has best functionality, the latter is very fast. This choice depends on if you are going to optimze your structure or want to screen the potential energy surface. - open shell In principle the same applies, but you might run into degeneracy (multi configuration) challanges, where I'm no expert. Good luck! Alexander Matthias Gottschalk gottschalk~~gfz-potsdam.de wrote: > Dear colleagues > > I hope that somebody could give me some advice. > I want to calculate energies for dimers and trimers to extract accurate > potentials using post Hartree methods (also for "large" distances > 5 > Angstroms). I intend to do this for closed- and open-shell systems (UHF) > consisting of simple atoms (in the moment). > Because I am not a computational chemistry specialist I did some reading > and as a result I concluded that methods like MP4, CCSD and QCISD might > be appropriate using a basis set like aug-cc-pVQZ might be appropriate. > I did success-full calculations for Ar dimers with gaussian g03 > reproducing published results which made me confident. I failed for > trimers using these evolved methods so long, however (might be due to > that I have only a 32 bit compiled version and the required real memory > exceeds 2.2 GB possible with 32 bit, I do have 8 GB, however). MP2 > trimers with more simple basis sets work, but that might be not what I want? > > Now my questions are: > > 1. are the methods described above adequate? > 2. which of the many programs available could be recommended to use? > > Thanks > > Matthias > > -- > > Prof. Dr. Matthias Gottschalk > GeoForschungsZentrum > Sektion 4.1 > Telegrafenberg > 14473 Potsdam > Germany > > tel/fax +49 (0) 331 288-1418/1402 > > -- Dr. Alexander Hofmann Humboldt-Universitaet zu Berlin Institut fuer Chemie Arbeitsgruppe Quantenchemie Post: Unter den Linden 6 10099 Berlin Visitors: Brook-Taylor-Strasse 2 12489 Berlin ah chemie.hu-berlin.de ** Tel.: +49-30-2093-7138 Fax.: +49-30-2093-7136 http://www.chemie.hu-berlin.de/ag_sauer/index.html PGP-Key: wwwkeys.de.pgp.net ID: D9D62D35 From owner-chemistry@ccl.net Sat Jun 9 11:12:00 2007 From: "Marius Retegan marius.s.retegan-x-gmail.com" To: CCL Subject: CCL:G: calculation Message-Id: <-34449-070608131548-19163-sR7aJxqWE69zAeRO9RrZnw- -server.ccl.net> X-Original-From: "Marius Retegan" Content-Type: multipart/alternative; boundary="----=_Part_64861_25829868.1181318988603" Date: Fri, 8 Jun 2007 18:09:48 +0200 MIME-Version: 1.0 Sent to CCL by: "Marius Retegan" [marius.s.retegan=gmail.com] ------=_Part_64861_25829868.1181318988603 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline I might be wrong, but as far as I know there are no PM3 parameters for iron in Gaussian 03. On 6/8/07, Mevlut YILDIZ mewlutyildiz=gmail.com wrote: > > > Sent to CCL by: "Mevlut YILDIZ" [mewlutyildiz(!)gmail.com] > > Dear all, > I am using Gaussian 03W program to optimize inorganic molecule > containing Fe with 257 atoms applying PM3 method. the job has stopped at > 43rd iteration. I decided to change the method as oniom (B3LYP with LANL2DZ > basis set for high layer and PM3 for low layer). altought B3LYP/LANL2DZ was > applied to the part of the molecule which contain Fe, I have obtain same > results:the job has stopped at 43rd iteration. I would like to thanks your > kind attention and advices. > REGARDS.> > > > ------=_Part_64861_25829868.1181318988603 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline I might be wrong, but as far as I know there are no PM3 parameters for iron in Gaussian 03.

On 6/8/07, Mevlut YILDIZ mewlutyildiz= gmail.com <owner-chemistry]^[ccl.net> wrote:

Sent to CCL by: "Mevlut  YILDIZ" [mewlutyildiz(!)gmail.com]

Dear all,
     I am using Gaussian 03W program to optimize inorganic molecule containing Fe with 257 atoms applying PM3 method. the job has stopped at 43rd iteration. I decided to change the method as oniom (B3LYP with LANL2DZ basis set for high layer and PM3 for low layer). altought B3LYP/LANL2DZ was applied to the part of the molecule which contain Fe, I have obtain same results:the job has stopped at 43rd iteration. I would like to thanks your kind attention and advices.
                         REGARDS.



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------=_Part_64861_25829868.1181318988603-- From owner-chemistry@ccl.net Sat Jun 9 11:46:01 2007 From: "Warren DeLano warren-.-delsci.com" To: CCL Subject: CCL: Download free trial of a new generation computer aided drug design software (Quantum 3.3.) Message-Id: <-34450-070609035043-24588-BtDTh5VEM6DS1zO811ALQw^_^server.ccl.net> X-Original-From: "Warren DeLano" Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C7AA6C.4564EFC2" Date: Sat, 9 Jun 2007 01:00:40 -0700 MIME-Version: 1.0 Sent to CCL by: "Warren DeLano" [warren],[delsci.com] This is a multi-part message in MIME format. ------_=_NextPart_001_01C7AA6C.4564EFC2 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear Maxim, =20 Congratulations on your product release! It is quite gratifying to see = another company taking PyMOL seriously as a development platform, = despite its shortcomings. Quantum is an impressive early example of one = of the many types of things the unrestricted open-source PyMOL source = code is intended to enable. In fact, I am astounded by all that your = company has accomplished independently using PyMOL, with nary a word = > from Moscow! =20 =20 However, one condition from the PyMOL open-source (top-level) LICENSE = file seems to have been inadvertently overlooked (note text between = asterisks): "Permission to use, copy, modify, distribute, and = distribute modified versions of this software and its documentation for = any purpose and without fee is hereby granted, **** provided that the = above copyright notice appears in all copies and that both the copyright = notice and this permission notice appear in supporting documentation, = ****" =20 Please remedy this (presumed unintentional) breach of the Copyright = terms as soon as practical by (1) enclosing a copy of PyMOL's original = LICENSE file in all product distributions (buried in a Quantum = subdirectory is fine), and by (2) including the text of the PyMOL = copyright and permission notices somewhere in the supporting = documentation (fine as an appendix at the end of the manual). Prompt = action will surely alleviate concerns that have been raised regarding = the legal status of the Quantum product vis-=E0-vis PyMOL. =20 =20 Just to reiterate, so that everyone is clear: =20 =20 In addition to development of new free and open-source tools, it is also = my desire to see new independent commercial products built on the PyMOL = foundation. PyMOL is BSD-ish rather than GPL-ish for precisely that = reason, and I do hope that Quantum and other like efforts will prove = successful and have numerous positive impacts on the field. However, it = is of critical import that such efforts rest on a solid foundation of = compliance with the very minimal legal requirements associated with = derivative use of the PyMOL open-source code. =20 =20 If ever there is any doubt regarding terms, the best way to achieve = certainty is to check in with me in advance of product release (before = it becomes a public matter). Another reason to talk to me early on is = that, in some cases, I may even be available to help with the = development work. =20 Thank you and everyone else for compliance with the PyMOL open-source = terms! =20 Cheers,=20 =20 Warren L. DeLano, Ph.D. warren(!)delsci.com Author of PyMOL Founder of DeLano Scientific LLC ________________________________ From: owner-chemistry(!)ccl.net [mailto:owner-chemistry(!)ccl.net]=20 Sent: Friday, June 08, 2007 8:33 AM To: Warren DeLano Subject: CCL: Download free trial of a new generation computer aided = drug design software (Quantum 3.3.) =09 =09 Dear Colleagues,=20 =20 Let me introduce you a free trial of new CADD software, which is all = CCL community is=20 invited to download, compare and discuss at CCL. =09 Quantum contains modules for industrial strength docking / virtual=20 screening of compound libraries on flexible proteins, accurate IC50 = calculations and chemical properties=20 prediction tools (Water and DMSO solubility and LogP) and protein = analysis=20 tools. =09 QUANTUM software employs advanced molecular simulations techniques = rather than statistically trained scores to obtain binding free energies of = the docked compounds. As a result QUANTUM can be used as a robust and = accurate in silico tool for hit identification and lead optimization. =09 This physically-solid approach provides a number of definite advantages = and=20 opens new opportunities in drug discovery. The main of them are as = follows: =09 1. ACCURACY =09 2. PREDICTION OF NEW CLASSES OF INHIBITORS =09 3. POSSIBILITY TO IDENTIFY INHIBITORS FOR TARGETS WITH NO KNOWN = LIGANDS. =09 4. DRAMATICAL REDUCTION IN FALSE POSITIVES =09 5. FULL PROTEIN FLEXIBILITY IS TAKEN INTO CONSIDERATION =09 6. NO TRAINING SETS =09 7. UNDERSTANDING OF NATURE OF PROTEIN-LIGAND INTERACTIONS =09 =09 You can evaluate QUANTUM software immediately by downloading free = trial at www.q-pharm.com . =09 A detailed description of technology, and variety of Computer Aided = Drug Design products and services can also be found at www.q-pharm.com = and www.q-lead.com =20 =20 =20 Feel free to post or contact me directly at = maxim.kholin-at--q-pharm.com =20 Kindest regards, Maxim =20 =20 =20 =20 ------_=_NextPart_001_01C7AA6C.4564EFC2 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dear=20 Maxim,
 
Congratulations on=20 your product release!  It is quite gratifying to see another = company taking=20 PyMOL seriously as a development platform,=20 despite its shortcomings.  Quantum is an impressive early example = of one of=20 the many types of things the unrestricted open-source PyMOL source code = is=20 intended to enable.  In fact, I am astounded by all that your = company has=20 accomplished independently using PyMOL, with nary a word from = Moscow! =20
 
However, one=20 condition from the PyMOL open-source (top-level) LICENSE file seems to = have been=20 inadvertently overlooked (note text between asterisks):   = =93Permission=20 to use, copy, modify, distribute, and distribute modified versions of = this=20 software and its documentation for any purpose and without fee is hereby = granted, **** provided that the above copyright notice appears in all = copies and=20 that both the copyright notice and this permission notice appear in = supporting=20 documentation, ****=94
 
Please remedy this=20 (presumed unintentional) breach of the Copyright terms as soon as = practical by=20 (1) enclosing a copy of PyMOL=92s original LICENSE file in all product=20 distributions (buried in a Quantum subdirectory is fine), and by (2) = including=20 the text of the PyMOL copyright and permission notices somewhere in the=20 supporting documentation (fine as an appendix at the end of the = manual). =20 Prompt action will surely alleviate concerns that have been raised = regarding the=20 legal status of the Quantum product vis-=E0-vis PyMOL.  =
 
Just to reiterate,=20 so that everyone is clear: 
 
In addition to=20 development of new free and open-source tools, it is also my desire to=20 see new independent = commercial=20 products built on the PyMOL foundation.  PyMOL is BSD-ish rather = than=20 GPL-ish for precisely that reason, and I do hope that Quantum and other = like=20 efforts will prove successful and have numerous positive impacts on the=20 field.  However, it is of critical import that such efforts rest on = a solid=20 foundation of compliance with the very minimal legal requirements = associated=20 with derivative use of the PyMOL open-source code. 
 
If ever there is=20 any doubt regarding terms, the best way to achieve certainty is to check = in with=20 me in advance of product release (before it becomes a public = matter). =20 Another reason to talk to me early on is that, in some cases, I may even be available to help with = the=20 development work.
 
Thank you and=20 everyone else for compliance with the PyMOL open-source terms!
 
Cheers,=20
 
Warren L. DeLano,=20 Ph.D.
warren(!)delsci.com
Author of=20 PyMOL
Founder of DeLano Scientific LLC


From: owner-chemistry(!)ccl.net=20 [mailto:owner-chemistry(!)ccl.net]
Sent: Friday, June 08, = 2007 8:33=20 AM
To: Warren DeLano
Subject: CCL: Download free = trial of=20 a new generation computer aided drug design software (Quantum=20 3.3.)

Dear Colleagues,
 
Let me=20 introduce you a  free trial of new CADD software, which = is=20  all CCL community is
invited to download, compare and = discuss at=20 CCL.

Quantum  contains modules for  industrial = strength=20 docking / virtual
screening of compound libraries =20 on  flexible proteins, accurate IC50 calculations and = chemical=20 properties
prediction tools (Water and DMSO solubility and LogP) = and=20 protein analysis
tools.

 QUANTUM software employs = advanced=20 molecular simulations techniques rather
 than statistically = trained=20 scores to obtain binding free energies of the
 docked = compounds. As a=20 result QUANTUM can be used as a robust and accurate
 in silico = tool=20 for hit identification and lead optimization.

This = physically-solid=20 approach provides a number of definite advantages and
opens new=20 opportunities in drug discovery. The main of them are as = follows:

1.=20 ACCURACY

2. PREDICTION OF NEW CLASSES OF INHIBITORS

3.=20 POSSIBILITY TO IDENTIFY INHIBITORS FOR TARGETS WITH NO KNOWN=20 LIGANDS.

4. DRAMATICAL REDUCTION IN FALSE POSITIVES

5. = FULL=20 PROTEIN FLEXIBILITY IS TAKEN INTO CONSIDERATION

6. = NO TRAINING=20 SETS

7. UNDERSTANDING OF NATURE OF PROTEIN-LIGAND=20 INTERACTIONS


 You can evaluate QUANTUM software = immediately by=20 downloading free trial at
 
www.q-pharm.com.

A detailed description of technology, = and  variety=20 of Computer Aided Drug Design products and services can also = be=20 found at www.q-pharm.com and www.q-lead.com
 
 
 
Feel free to post or contact me = directly at=20 maxim.kholin-at--q-pharm.com
 
Kindest regards,
Maxim
 
=

 
 
 
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