From owner-chemistry@ccl.net Fri Mar 20 05:42:00 2009 From: "taner atalar taneratalar%%gmail.com" To: CCL Subject: CCL:G: TD-DFT Message-Id: <-38880-090320045844-15017-LT+Jd5m5kGSRrjTm0A0feg{:}server.ccl.net> X-Original-From: taner atalar Content-Type: multipart/alternative; boundary=0015174c3c668071b704658855d9 Date: Fri, 20 Mar 2009 10:02:11 +0200 MIME-Version: 1.0 Sent to CCL by: taner atalar [taneratalar- -gmail.com] --0015174c3c668071b704658855d9 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi, I am the beginner for the TD-DFT learning by using the Gaussian 03 w, so are there any good sources and/or references for learning TD-DFT (freely available) ? Also any useful materials about the Gaussian usage and about output interpretation for this method (TD-DFT) ? I tried to do some calculations by using TD-DFT with Gaussian 03 W, unfortunately all the my calculations terminated with errors. Any suggestions? or Any help ? Thank you very much in advance, Taner Atalar --0015174c3c668071b704658855d9 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Hi,
=A0
I am the beginner for the TD-DFT learning by using the Gaussian 03 w, = so are there any good sources and/or references for learning TD-DFT (freely= available) ?
=A0
Also any=A0useful=A0materials=A0about the Gaussian usage and about=A0o= utput interpretation=A0for this method (TD-DFT) ?
=A0
I tried to do some calculations by using TD-DFT with Gaussian 03 W, un= fortunately all the my calculations terminated with errors.
=A0
Any suggestions? or Any help ?
=A0
=A0
Thank you very much in advance,
=A0
Taner Atalar
--0015174c3c668071b704658855d9-- From owner-chemistry@ccl.net Fri Mar 20 06:05:01 2009 From: "Siamkhanthang Neihsial sktn06!A!gmail.com" To: CCL Subject: CCL: Difficulty of DFT calculation on dianions species Message-Id: <-38881-090320060147-31008-Yp7mPP8U8IlyEYCMy/ithQ%%server.ccl.net> X-Original-From: "Siamkhanthang Neihsial" Date: Fri, 20 Mar 2009 06:01:43 -0400 Sent to CCL by: "Siamkhanthang Neihsial" [sktn06*o*gmail.com] Dear, CClers I have read lots of literatures regarding the difficulties of DFT calculations on dianions species, but i have to admit that i donot understand it properly. Can any one explain it to me. Thanks in advance Siamkhanthang Neihsial PhD Research Scholar Deptt. of Chemistry NEHU , Shillong ,India sktn06(!)gmail.com From owner-chemistry@ccl.net Fri Mar 20 06:44:01 2009 From: "Harald Lanig harald.lanig|a|chemie.uni-erlangen.de" To: CCL Subject: CCL: Announcement of Model(l)ing 09 - The annual 2009 MGMS Meeting in Erlangen, Germany Message-Id: <-38882-090320051941-17141-JI6DCzwwkaYGHQtbv9P1ag(_)server.ccl.net> X-Original-From: Harald Lanig Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Date: Fri, 20 Mar 2009 09:41:25 +0100 MIME-Version: 1.0 Sent to CCL by: Harald Lanig [harald.lanig ~ chemie.uni-erlangen.de] Dear CCL subscribers, The Annual International Meeting of the Molecular Graphics and Modelling=20 Society (MGMS) will take place in Erlangen, Germany from September 7th=20 (registration and mixer) - 11th 2009. The meeting will be preceded by=20 the annual Molecular Modelling Workshop organised by the Molecular=20 Graphics and Modelling Society - Deutschsprachige Sektion (MGMS-DS) from=20 Sunday 6th to Monday, September 7th. Model(l)ing 09 is also a celebration of Tim Clark's 60th birthday. The following speakers already agreed to give invited lectures: * Frank Blaney (GlaxoSmithKline) * Gabriele Cruciani (University of Perugia) * Jon Essex (University of Southhampton) * Robert Glen (University of Cambridge) * Holger Gohlke (University of D=FCsseldorf) * Andreas Goerling (University of Erlangen-N=FCrnberg) * Trevor Howe (Johnson & Johnson) * Christof Jaeger (University of Erlangen-N=FCrnberg) * Christian Kramer (Boehringer Ingelheim) * Harald Lanig (University of Erlangen-N=FCrnberg) * Adrian Mulholland (University of Bristol) * Nigel Richards (University of Florida) * Dave Ritchie (Loria) * Gisbert Schneider (University of Frankfurt/Main) * Heinrich Sticht (University of Erlangen-N=FCrnberg) In addition, the Claus-Wilhelm von der Lieth Medal will be awarded for=20 the first time at Model(l)ing 09 and the winner will present an award=20 lecture. Details of the conference and online registration are now available=20 under http://www.modeling09.com/ We are looking forward to seeing you in Erlangen! Kind regards, -Harald Lanig --=20 ------------------------------------------------------------------------ Dr. Harald Lanig Universitaet Erlangen/Nuernberg Computer-Chemie-Centrum Naegelsbachstr. 25, D-91052 Erlangen Phone +49(0)9131-85 26525 harald DOT lanig AT chemie.uni-erlangen.de Fax +49(0)9131-85 26565 http://www.chemie.uni-erlangen.de/lanig ------------------------------------------------------------------------ From owner-chemistry@ccl.net Fri Mar 20 07:15:00 2009 From: "Marc Baaden baaden]*[smplinux.de" To: CCL Subject: CCL: MM-PBSA calculation in Gromacs Message-Id: <-38883-090320062933-21968-QZj2CAHtZ3QKbWW4Mo7tqQ/a\server.ccl.net> X-Original-From: Marc Baaden Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Date: Fri, 20 Mar 2009 10:46:10 +0100 Mime-Version: 1.0 Sent to CCL by: Marc Baaden [baaden+/-smplinux.de] Dear Neha Gandhi, I have indeed been working on some scripts (derived from the original Amber ones) to carry out mm-pbsa analysis with Gromacs. At the present stage (sort of beta-testing) these scripts are not yet publicly available= . Anybody interested can contact me directly for more details. Sincerely, Marc Baaden http://www.baaden.ibpc.fr >>> =22Neha Gandhi n.gandhiau..gmail.com=22 said: >>=20 >> Sent to CCL by: Neha Gandhi =5Bn.gandhiau=5Egmail.com=5D >> Hi, >>=20 >> Did anyone tried running mm-pbsa using gromacs trajectories? Are ther= e >> any scripts to run mm-pbsa calculations in gromacs? >>=20 >> Kindly help=21 >>=20 >> --=20 >> Regards, >> Neha Gandhi, --=20 Dr. Marc Baaden - Institut de Biologie Physico-Chimique, Paris mailto:baaden=40smplinux.de - http://www.baaden.ibpc.fr FAX: +33 15841 5026 - Tel: +33 15841 5176 ou +33 609 843217 From owner-chemistry@ccl.net Fri Mar 20 08:48:01 2009 From: "Lucilla Angeli angeli10+*+unisi.it" To: CCL Subject: CCL: Seventh European Workshop in Drug Design Message-Id: <-38884-090319083612-25936-oab1k5oxj7QLCPJxQvmK3A:server.ccl.net> X-Original-From: Lucilla Angeli Content-transfer-encoding: 8BIT Content-type: text/plain; charset=UTF-8 Date: Thu, 19 Mar 2009 13:37:43 +0100 MIME-version: 1.0 Sent to CCL by: Lucilla Angeli [angeli10{=}unisi.it] The University of Siena is pleased to announce the Seventh European Workshop in Drug Design May 24-30, 2009 This workshop, which follows up the six very successful previous editions, held respectively in Cortona on May 1995 and in Siena on May 1998, June 2001, May 2003, May 2005 and June 2007, will feature about 25 well known researchers from the University and the Pharmaceutical Industry, including directors of research, working with a maximum number of 65 workshop participants. Participants will be divided into teams, each one led by a tutor, and will focus on solving concrete problems in drug design using high level hardware and software tools. Talks and case studies will be interdisciplinary, touching uponligand/structure based drug design,in silico ADME-Tox,design and screening of virtual libraries, molecular modelling methodologies,cheminformatics/bioinformatics and synthetic feasibility, etc. With the purpose to stimulate helpful discussions, attendees will be invited to present a poster illustrating their own research. Participation in the Seventh European Workshop in Drug Design is limited to 65 applicants, selected on the basis of individual experience. For more info see: www.unisi.it/EWDD To apply, please submit your name, address, affiliation, and primary area of research, along with a curriculum vitae, by fax or mail/E-mail to: Prof. Maurizio Botta, “Seventh European Workshop in Drug Design”, Università di Siena Dipartimento Farmaco Chimico Tecnologico Via Aldo Moro 2, I-53100 Siena, Italy Fax: +39(0)577 234333 email:botta]^[unisi.it Fee for participation (Euro 2,500.00) will include all meals and participation in social events and hotel accommodation in two-bed rooms for seven nights (some single rooms are also available, supplementary fee Euro 300.00). Financial aid will be available by request for a limited number of applicants. Deadline for applications is March 31st, 2009 Organizing Secretariat: Dr.Suvi Rajamäki Dipartimento Farmaco Chimico Tecnologico—Università degli studi di Siena Via Aldo Moro 2, I-53100 Siena, Italy email:rajamaki]^[unisi.it -- ********************************* Dr.Lucilla Angeli Dip. Farmaco Chimico Tecnologico Universita' degli Studi Di Siena Via Aldo Moro I-53100 Siena, Italy Phone: ++39 0577 234256 Fax: ++39 0577 234333 e-mail angeli10]^[unisi.it ********************************** From owner-chemistry@ccl.net Fri Mar 20 10:38:01 2009 From: "=?gb2312?B?yqnBvA==?= shiliang{}mail.ustc.edu.cn" To: CCL Subject: CCL:G: Regarding the C-NO2 BDE calculations Message-Id: <-38885-090320103639-30858-LZX5rjU6WeuiJitTQimYNQ###server.ccl.net> X-Original-From: "=?gb2312?B?yqnBvA==?=" Content-Type: text/plain Date: Fri, 20 Mar 2009 22:05:59 +0800 Sent to CCL by: "=?gb2312?B?yqnBvA==?=" [shiliang[#]mail.ustc.edu.cn] Dear CCLers: In my calculated systems, some molecules have the nitro groups connected to the carbon atoms. I intend to investigate the relationships of the C-N bond dissociation enthalpies (BDE) and its bond lengths. But unfortunately I find the DFT methods and MP2 fails to reproduce the experimental values of C-NO2 BDEs accurately. Moreover, in the chain compounds and aromatic compounds the performances of DFT are different: Some predict chain compounds well while some predict aromatic compounds well. Could some one tell me what the problem is in my computation? I optimized the geometry using b3lyp in Gaussian03. Thank you for your attention and kind help! Best wishes, Liang Shi From owner-chemistry@ccl.net Fri Mar 20 11:58:00 2009 From: "Tai Ba Truong truong.batai{:}chem.kuleuven.be" To: CCL Subject: CCL:G: Please help me to obtain separate pi and sigma orbitals? Message-Id: <-38886-090320094902-23892-WLlGBxvHT6TfP8CDsCn3jw-,-server.ccl.net> X-Original-From: "Tai Ba Truong" Date: Fri, 20 Mar 2009 09:48:59 -0400 Sent to CCL by: "Tai Ba Truong" [truong.batai()chem.kuleuven.be] Dear Sir/Madam I am trying to plot ELFs for metal clusters. I would like to plot pi and sigma ELF separately to identify thier aromaticity. The problem is that I donnot know how to separate pi and sigma orbital in wavefunction to plot ELFs. I am using Gaussian03 softwave and topmod for plot ELFs. Could anyone know how to do it? I will apreciate very mcuh for your help. Thank you very much indeed From owner-chemistry@ccl.net Fri Mar 20 12:38:01 2009 From: "Jose R. Valverde jrvalverde]|[cnb.csic.es" To: CCL Subject: CCL:G: QM/MM question Message-Id: <-38887-090318064432-7448-lqcYtQU6pCDssK4bWuJCYQ!=!server.ccl.net> X-Original-From: "Jose R. Valverde" Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII Date: Wed, 18 Mar 2009 10:41:59 +0100 Mime-Version: 1.0 Sent to CCL by: "Jose R. Valverde" [jrvalverde]=[cnb.csic.es] On Fri, 6 Mar 2009 01:08:53 -0500 "Maurizzio m.argonni[]gmail.com" wrote: > Dear CCL'ers: > > I would like to perform some QM/MM calculations but I don't seem to be able > to find adequate software for it that is free for academic use. Are the > choices really so limited? So far, I am aware of GAMESS interfaced to a very > dated version of Tinker and then QMMM software from Dr. Truhlar's lab that > is able to use also GAMESS and Tinker albeit in a limited way because of > limitations in GAMESS. > You can try GAMESS-US directly using EFF. You can try NWchem using mixed models and ONIOM. You can try EGO-VIII with CPMD (but it and its documentation are somewhat hidden). Gromacs interfaces seem to be also getting outdated (sigh) but work. Ghemical has some degree of support but it's undocumented. > I have no money to pay for Gaussian or Schrodinger's Qsite and I sort of > refuse to pay 500 UK Pounds for Chemshell on the basis that I am not British > (not to mention that most of the software they use as a base for theirs is > free and/or developed elsewhere). > > Anyway, I would appreciate any insights into what choices I have for QM/MM > software that would allow me to do calculations like geometry optimizations, > transition states, etc. in protein systems. Thanks for the help! > > Maurizzio -- EMBnet/CNB Scientific Computing Service Solving all your computer needs for Scientific Research. http://bioportal.cnb.csic.es http://www.es.embnet.org From owner-chemistry@ccl.net Fri Mar 20 13:42:01 2009 From: "John McKelvey jmmckel[-]gmail.com" To: CCL Subject: CCL:G: Regarding the C-NO2 BDE calculations Message-Id: <-38888-090320124041-26513-fKHVTPYXK0WcnWtsMditwA:+:server.ccl.net> X-Original-From: John McKelvey Content-Type: multipart/alternative; boundary=000e0cd2442249590f04658f92b5 Date: Fri, 20 Mar 2009 12:40:15 -0400 MIME-Version: 1.0 Sent to CCL by: John McKelvey [jmmckel%gmail.com] --000e0cd2442249590f04658f92b5 Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Try googling "DFT bond dissociation" I got many hits.. John McKelvey 2009/3/20 $B;\NI(B shiliang{}mail.ustc.edu.cn > > Sent to CCL by: "=?gb2312?B?yqnBvA==?=" [shiliang[#]mail.ustc.edu.cn] > Dear CCLers: > > In my calculated systems, some molecules have the nitro groups connected to > the > carbon atoms. I intend to investigate the relationships of the C-N bond > dissociation enthalpies (BDE) and its bond lengths. But unfortunately I > find the > DFT methods and MP2 fails to reproduce the experimental values of C-NO2 > BDEs > accurately. Moreover, in the chain compounds and aromatic compounds the > performances of DFT are different: Some predict chain compounds well while > some > predict aromatic compounds well. Could some one tell me what the problem is > in my > computation? I optimized the geometry using b3lyp in Gaussian03. Thank you > for > your attention and kind help! > > > Best wishes, > > Liang Shi> > > --000e0cd2442249590f04658f92b5 Content-Type: text/html; charset=ISO-2022-JP Content-Transfer-Encoding: base64 VHJ5IGdvb2dsaW5nICZxdW90O0RGVCBib25kIGRpc3NvY2lhdGlvbiZxdW90OyZuYnNwOyBJIGdv dCBtYW55IGhpdHMuLjxicj48YnI+Sm9obiBNY0tlbHZleTxicj48YnI+PGRpdiBjbGFzcz0iZ21h aWxfcXVvdGUiPjIwMDkvMy8yMCAbJEI7XE5JGyhCIHNoaWxpYW5ne308YSBocmVmPSJodHRwOi8v bWFpbC51c3RjLmVkdS5jbiI+bWFpbC51c3RjLmVkdS5jbjwvYT4gPHNwYW4gZGlyPSJsdHIiPiZs dDs8YSBocmVmPSJtYWlsdG86b3duZXItY2hlbWlzdHJ5QGNjbC5uZXQiPm93bmVyLWNoZW1pc3Ry eUBjY2wubmV0PC9hPiZndDs8L3NwYW4+PGJyPgo8YmxvY2txdW90ZSBjbGFzcz0iZ21haWxfcXVv dGUiIHN0eWxlPSJib3JkZXItbGVmdDogMXB4IHNvbGlkIHJnYigyMDQsIDIwNCwgMjA0KTsgbWFy Z2luOiAwcHQgMHB0IDBwdCAwLjhleDsgcGFkZGluZy1sZWZ0OiAxZXg7Ij48YnI+ClNlbnQgdG8g Q0NMIGJ5OiAmcXVvdDs9P2diMjMxMj9CP3lxbkJ2QT09Pz0mcXVvdDsgW3NoaWxpYW5nWyNdPGEg aHJlZj0iaHR0cDovL21haWwudXN0Yy5lZHUuY24iIHRhcmdldD0iX2JsYW5rIj5tYWlsLnVzdGMu ZWR1LmNuPC9hPl08YnI+CkRlYXIgQ0NMZXJzOjxicj4KPGJyPgpJbiBteSBjYWxjdWxhdGVkIHN5 c3RlbXMsIHNvbWUgbW9sZWN1bGVzIGhhdmUgdGhlIG5pdHJvIGdyb3VwcyBjb25uZWN0ZWQgdG8g dGhlPGJyPgpjYXJib24gYXRvbXMuIEkgaW50ZW5kIHRvIGludmVzdGlnYXRlIHRoZSByZWxhdGlv bnNoaXBzIG9mIHRoZSBDLU4gYm9uZDxicj4KZGlzc29jaWF0aW9uIGVudGhhbHBpZXMgKEJERSkg YW5kIGl0cyBib25kIGxlbmd0aHMuIEJ1dCB1bmZvcnR1bmF0ZWx5IEkgZmluZCB0aGU8YnI+CkRG VCBtZXRob2RzIGFuZCBNUDIgZmFpbHMgdG8gcmVwcm9kdWNlIHRoZSBleHBlcmltZW50YWwgdmFs dWVzIG9mIEMtTk8yIEJERXM8YnI+CmFjY3VyYXRlbHkuIE1vcmVvdmVyLCBpbiB0aGUgY2hhaW4g Y29tcG91bmRzIGFuZCBhcm9tYXRpYyBjb21wb3VuZHMgdGhlPGJyPgpwZXJmb3JtYW5jZXMgb2Yg REZUIGFyZSBkaWZmZXJlbnQ6IFNvbWUgcHJlZGljdCBjaGFpbiBjb21wb3VuZHMgd2VsbCB3aGls ZSBzb21lPGJyPgpwcmVkaWN0IGFyb21hdGljIGNvbXBvdW5kcyB3ZWxsLiBDb3VsZCBzb21lIG9u ZSB0ZWxsIG1lIHdoYXQgdGhlIHByb2JsZW0gaXMgaW4gbXk8YnI+CmNvbXB1dGF0aW9uPyBJIG9w dGltaXplZCB0aGUgZ2VvbWV0cnkgdXNpbmcgYjNseXAgaW4gR2F1c3NpYW4wMy4gVGhhbmsgeW91 IGZvcjxicj4KeW91ciBhdHRlbnRpb24gYW5kIGtpbmQgaGVscCE8YnI+Cjxicj4KPGJyPgpCZXN0 IHdpc2hlcyw8YnI+Cjxicj4KTGlhbmcgU2hpPGJyPgo8YnI+Cjxicj4KPGJyPgotPSBUaGlzIGlz IGF1dG9tYXRpY2FsbHkgYWRkZWQgdG8gZWFjaCBtZXNzYWdlIGJ5IHRoZSBtYWlsaW5nIHNjcmlw dCA9LTxicj4KVG8gcmVjb3ZlciB0aGUgZW1haWwgYWRkcmVzcyBvZiB0aGUgYXV0aG9yIG9mIHRo ZSBtZXNzYWdlLCBwbGVhc2UgY2hhbmdlPGJyPgp0aGUgc3RyYW5nZSBjaGFyYWN0ZXJzIG9uIHRo ZSB0b3AgbGluZSB0byB0aGUgQCBzaWduLiBZb3UgY2FuIGFsc288YnI+Cmxvb2sgdXAgdGhlIFgt T3JpZ2luYWwtRnJvbTogbGluZSBpbiB0aGUgbWFpbCBoZWFkZXIuPGJyPgo8YnI+CkUtbWFpbCB0 byBzdWJzY3JpYmVyczogPGEgaHJlZj0ibWFpbHRvOkNIRU1JU1RSWUBjY2wubmV0Ij5DSEVNSVNU UllAY2NsLm5ldDwvYT4gb3IgdXNlOjxicj4KICZuYnNwOyAmbmJzcDsgJm5ic3A7PGEgaHJlZj0i aHR0cDovL3d3dy5jY2wubmV0L2NnaS1iaW4vY2NsL3NlbmRfY2NsX21lc3NhZ2UiIHRhcmdldD0i X2JsYW5rIj5odHRwOi8vd3d3LmNjbC5uZXQvY2dpLWJpbi9jY2wvc2VuZF9jY2xfbWVzc2FnZTwv YT48YnI+Cjxicj4KRS1tYWlsIHRvIGFkbWluaXN0cmF0b3JzOiA8YSBocmVmPSJtYWlsdG86Q0hF TUlTVFJZLVJFUVVFU1RAY2NsLm5ldCI+Q0hFTUlTVFJZLVJFUVVFU1RAY2NsLm5ldDwvYT4gb3Ig dXNlPGJyPgogJm5ic3A7ICZuYnNwOyAmbmJzcDs8YSBocmVmPSJodHRwOi8vd3d3LmNjbC5uZXQv Y2dpLWJpbi9jY2wvc2VuZF9jY2xfbWVzc2FnZSIgdGFyZ2V0PSJfYmxhbmsiPmh0dHA6Ly93d3cu Y2NsLm5ldC9jZ2ktYmluL2NjbC9zZW5kX2NjbF9tZXNzYWdlPC9hPjxicj4KPGJyPgpTdWJzY3Jp YmUvVW5zdWJzY3JpYmU6PGJyPgogJm5ic3A7ICZuYnNwOyAmbmJzcDs8YSBocmVmPSJodHRwOi8v d3d3LmNjbC5uZXQvY2hlbWlzdHJ5L3N1Yl91bnN1Yi5zaHRtbCIgdGFyZ2V0PSJfYmxhbmsiPmh0 dHA6Ly93d3cuY2NsLm5ldC9jaGVtaXN0cnkvc3ViX3Vuc3ViLnNodG1sPC9hPjxicj4KPGJyPgpC ZWZvcmUgcG9zdGluZywgY2hlY2sgd2FpdCB0aW1lIGF0OiA8YSBocmVmPSJodHRwOi8vd3d3LmNj bC5uZXQiIHRhcmdldD0iX2JsYW5rIj5odHRwOi8vd3d3LmNjbC5uZXQ8L2E+PGJyPgo8YnI+Ckpv YjogPGEgaHJlZj0iaHR0cDovL3d3dy5jY2wubmV0L2pvYnMiIHRhcmdldD0iX2JsYW5rIj5odHRw Oi8vd3d3LmNjbC5uZXQvam9iczwvYT48YnI+CkNvbmZlcmVuY2VzOiA8YSBocmVmPSJodHRwOi8v c2VydmVyLmNjbC5uZXQvY2hlbWlzdHJ5L2Fubm91bmNlbWVudHMvY29uZmVyZW5jZXMvIiB0YXJn ZXQ9Il9ibGFuayI+aHR0cDovL3NlcnZlci5jY2wubmV0L2NoZW1pc3RyeS9hbm5vdW5jZW1lbnRz L2NvbmZlcmVuY2VzLzwvYT48YnI+Cjxicj4KU2VhcmNoIE1lc3NhZ2VzOiA8YSBocmVmPSJodHRw Oi8vd3d3LmNjbC5uZXQvY2hlbWlzdHJ5L3NlYXJjaGNjbC9pbmRleC5zaHRtbCIgdGFyZ2V0PSJf YmxhbmsiPmh0dHA6Ly93d3cuY2NsLm5ldC9jaGVtaXN0cnkvc2VhcmNoY2NsL2luZGV4LnNodG1s PC9hPjxicj4KPGJyPgpJZiB5b3VyIG1haWwgYm91bmNlcyBmcm9tIENDTCB3aXRoIDUuNy4xIGVy cm9yLCBjaGVjazo8YnI+CiAmbmJzcDsgJm5ic3A7ICZuYnNwOzxhIGhyZWY9Imh0dHA6Ly93d3cu Y2NsLm5ldC9zcGFtbWVycy50eHQiIHRhcmdldD0iX2JsYW5rIj5odHRwOi8vd3d3LmNjbC5uZXQv c3BhbW1lcnMudHh0PC9hPjxicj4KPGJyPgpSVEZJOiA8YSBocmVmPSJodHRwOi8vd3d3LmNjbC5u ZXQvY2hlbWlzdHJ5L2Fib3V0Y2NsL2luc3RydWN0aW9ucy8iIHRhcmdldD0iX2JsYW5rIj5odHRw Oi8vd3d3LmNjbC5uZXQvY2hlbWlzdHJ5L2Fib3V0Y2NsL2luc3RydWN0aW9ucy88L2E+PGJyPgo8 YnI+Cjxicj4KPC9ibG9ja3F1b3RlPjwvZGl2Pjxicj4K --000e0cd2442249590f04658f92b5-- From owner-chemistry@ccl.net Fri Mar 20 16:23:01 2009 From: "Gustavo Seabra gustavo.seabra() gmail.com" To: CCL Subject: CCL:G: QM/MM question Message-Id: <-38889-090320160110-15671-MpVT5GWsqZ1k0NgZCcSLdQ#%#server.ccl.net> X-Original-From: Gustavo Seabra Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1 Date: Fri, 20 Mar 2009 16:00:36 -0400 MIME-Version: 1.0 Sent to CCL by: Gustavo Seabra [gustavo.seabra : gmail.com] Hi, What kind of QM/MM calculations do you want to do? If semi-empirical methods are ok, I'd recommend that you use Amber. Granted, it's not free, but the fee is small compared to other programs (just US$400 for academic users). Also, depending on your situation, the fee may be reduced or even waived: http://ambermd.org http://ambermd.org/#obtain If you need ab-initio or dft methods, I'd recommend that you take a look at the PUPIL interface. It is free and open source, and can interface different MM and QM packages. The latest release allows you to use Amber or DLPOLY as the MD driver, and Gaussian, MNDO or SIESTA as the QM program, and other interfaces are currently being developed. If the program you want is not there, then you could suggest the developers of that program to consider providing a PUPIL interface. http://pupil.sourceforge.net HTH, Gustavo Seabra Postdoctoral Associate Quantum Theory Project - University of Florida Gainesville - Florida - USA On Fri, Mar 6, 2009 at 2:08 AM, Maurizzio m.argonni[]gmail.com wrote: > Dear CCL'ers: > > I would like to perform some QM/MM calculations but I don't seem to be ab= le > to find adequate software for it that is free for academic use. Are the > choices really so limited? So far, I am aware of GAMESS interfaced to a v= ery > dated version of Tinker and then QMMM software from Dr. Truhlar's lab tha= t > is able to use also GAMESS and Tinker albeit in a limited way because of > limitations in GAMESS. > > I have no money to pay for Gaussian or Schrodinger's Qsite and I sort of > refuse to pay 500 UK Pounds for Chemshell on the basis that I am not Brit= ish > (not to mention that most of the software they use as a base for theirs i= s > free and/or developed elsewhere). > > Anyway, I would appreciate any insights into what choices I have for=A0 Q= M/MM > software that would allow me to do calculations like geometry optimizatio= ns, > transition states, etc. in protein systems. Thanks for the help! > > Maurizzio > > >