From owner-chemistry@ccl.net Sat Sep 11 05:52:01 2010 From: "Boes, Fabian Fabian.Boes,+,certara.com" To: CCL Subject: CCL: Free European Tripos Symposium and Workshop, 2nd (and/or 3rd) November 2010, Frankfurt, Germany Message-Id: <-42737-100910191404-3165-YpTkGrkpK+OLp4Fhu0z+dw * server.ccl.net> X-Original-From: "Boes, Fabian" Content-Language: de-DE Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="Windows-1252" Date: Fri, 10 Sep 2010 17:17:38 -0500 MIME-Version: 1.0 Sent to CCL by: "Boes, Fabian" [Fabian.Boes,+,certara.com] You are cordially invited to join us for a one day symposium and/or a SYBYL-X hands-on workshop. Hear colleagues from industry speak about: * Employing virtual screening with web technologies to empower scientists (Bayer CropScience) * Structure and ligand-based molecular invention workflows using Muse (JOHNSON & JOHNSON) * Easily identifying closely related analogs with property examination (Elara Pharmaceuticals) Further topics covered by Tripos scientists include: * Substructural filtering to eradicate frequent hitters in biochemical high throughput screens * Torsional profiling effects when starting with multi-conformers in 3D pharmacophore searching * Enhanced docking utilizing protein flexibility, tuned scoring functions and fragment placement The workshop will conclude with a special free networking culinary event where we can take a rest from generating ideas for chemists to make and physically create ourselves something great. So join us for this gastronomy workshop to prepare and enjoy a 3-5 course gourmet meal. In addition or alternatively, attend a hands-on workshop the following day on the 3rd November to experience: * Improved docking workflows, with easy access to fragment-guided docking and improved scoring via protein pocket adaptation * Getting introduced and instantly familiar with the new easy to use QSAR workflow * Employing pharmacophore searching with SYBYL-X’s UNITY, creating pharmacophores, running database searches, and using tips and tricks to improve results Attendees to the workshop are asked to bring their own laptops if available - Tripos will install SYBYL-X on you laptop for use during the workshop and each attendee will receive a license for an additional 30 day trial period. To register for this free event and read the full agenda, please click on the link below. http://bit.ly/9AxwsU Kind regards Fabian _________________________________________________________________ NOTICE: The information contained in this electronic mail message is intended only for the personal and confidential use of the designated recipient(s) named above. This message may be an attorney-client communication, may be protected by the work product doctrine, and may be subject to a protective order. As such, this message is privileged and confidential. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this message in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by telephone and e-mail and destroy any and all copies of this message in your possession (whether hard copies or electronically stored copies). Thank you. From owner-chemistry@ccl.net Sat Sep 11 09:40:00 2010 From: "Partha Biswas partha361*gmail.com" To: CCL Subject: CCL:G: grid=ultrafine command in Q-Chem package Message-Id: <-42738-100911075212-1568-cj9X1MRkMVAZGFxIFBODbw(!)server.ccl.net> X-Original-From: "Partha Biswas" Date: Sat, 11 Sep 2010 07:52:10 -0400 Sent to CCL by: "Partha Biswas" [partha361(0)gmail.com] Dear all, Can anyone suggest how to use grid=ultrafine command in the geometry optimization job using Q-Chem pachkge? int(grid=ultrafine)---- this specification is avaliable in G03 package especially when you are using DFT method for geometry optimization. Thanks in advance. Regards, Partha Biswas From owner-chemistry@ccl.net Sat Sep 11 10:15:00 2010 From: "Andreas Klamt klamt]|[cosmologic.de" To: CCL Subject: CCL: Gsolv - pKa - Frequency Message-Id: <-42739-100911101332-5111-WaVp+qXFl8iENqxW61+LEw]*[server.ccl.net> X-Original-From: Andreas Klamt Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-15; format=flowed Date: Sat, 11 Sep 2010 16:13:25 +0200 MIME-Version: 1.0 Sent to CCL by: Andreas Klamt [klamt()cosmologic.de] Dear Toomas, indeed, I have submitted such a paper recently together with a group in Australia. I hope it appears soon. Andreas Am 10.09.2010 12:01, schrieb Toomas Tamm tt-ccl2(0)yki.ttu.ee: > Sent to CCL by: Toomas Tamm [tt-ccl2,,yki.ttu.ee] > On Sun, 2010-09-05 at 10:45 -0500, Christopher Cramer cramer..umn.edu > wrote: > >> At that point, the "best" (in my opinion) way to define the free >> energy in solution is to do a continuum calculation and add the >> derived free energy of solvation to the gas phase free energy. > I have been using this (or similar) schemes and trying to very briefly > justify them in the resulting papers. This has led to questions from > reviewers about the approximations, and I have had no better place to > refer them to than the CCL archives. > > Is there a research paper (or book) which could be referenced which > would explain and justify this way of calculating free energies in > solution? If there is none, here is a suggestion to someone > authoritative (Chris, Andreas, ...) to write one. > -- PD. Dr. Andreas Klamt CEO / Geschäftsführer COSMOlogic GmbH& Co. KG Burscheider Strasse 515 D-51381 Leverkusen, Germany phone +49-2171-731681 fax +49-2171-731689 e-mail klamt|-|cosmologic.de web www.cosmologic.de HRA 20653 Amtsgericht Koeln, GF: Dr. Andreas Klamt Komplementaer: COSMOlogic Verwaltungs GmbH HRB 49501 Amtsgericht Koeln, GF: Dr. Andreas Klamt From owner-chemistry@ccl.net Sat Sep 11 13:09:01 2010 From: "Marcel Swart marcel.swart- -icrea.es" To: CCL Subject: CCL: Gsolv - pKa - Frequency Message-Id: <-42740-100911130738-22552-qg7wiMGDx65Y0TFj817OWw]*[server.ccl.net> X-Original-From: Marcel Swart Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=utf-8 Date: Sat, 11 Sep 2010 19:07:25 +0200 Mime-Version: 1.0 (Apple Message framework v1081) Sent to CCL by: Marcel Swart [marcel.swart**icrea.es] See e.g. Thirty years of continuum solvation chemistry: a review, and prospects for the near future Jacopo Tomasi Theor Chem Acc (2004) 112: 184–203 Quantum Mechanical Continuum Solvation Models Jacopo Tomasi, Benedetta Mennucci, and Roberto Cammi Chem. Rev. 2005, 105, 2999−3093 On Sep 10, 2010, at 12:01 PM, Toomas Tamm tt-ccl2(0)yki.ttu.ee wrote: > I have been using this (or similar) schemes and trying to very briefly > justify them in the resulting papers. This has led to questions from > reviewers about the approximations, and I have had no better place to > refer them to than the CCL archives. > > Is there a research paper (or book) which could be referenced which > would explain and justify this way of calculating free energies in > solution? If there is none, here is a suggestion to someone > authoritative (Chris, Andreas, ...) to write one. =================================== dr. Marcel Swart ICREA Research Professor at Institut de Química Computacional Universitat de Girona Parc Científic i Tecnològic Edifici Jaume Casademont (despatx A-27) Pic de Peguera 15 17003 Girona Catalunya (Spain) tel +34-972-183240 fax +34-972-183241 e-mail marcel.swart-x-icrea.es marcel.swart-x-udg.edu web http://www.marcelswart.eu =================================== From owner-chemistry@ccl.net Sat Sep 11 15:15:00 2010 From: "Eric B. Isaacs ebisaacs*o*gmail.com" To: CCL Subject: CCL:G: grid=ultrafine command in Q-Chem package Message-Id: <-42741-100911151249-4738-VoP6GyFL90BNUTMsL2JyWQ(!)server.ccl.net> X-Original-From: "Eric B. Isaacs" Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Date: Sat, 11 Sep 2010 12:12:38 -0700 Mime-Version: 1.0 (Apple Message framework v936) Sent to CCL by: "Eric B. Isaacs" [ebisaacs:+:gmail.com] Hi Partha, The density of the grid can be controlled with the "xc_grid" keyword in the $rem section, with the Euler-Maclaurin scheme for radial points and the Lebedev or Gauss-Legendre schemes for angular points (see section 4.3.6 of the Q-Chem manual). I believe Grid=UltraFine requests a (99, 590) grid. Also, I'm not sure if this feature is current, but you might try to run Q-Chem with a Gaussian input file that has the ultrafine grid with the "-g" flag in the Q-Chem command line, which as I understand it converts Gaussian input format to that of Q-Chem. Regards, Eric On Sep 11, 2010, at 4:52 AM, Partha Biswas partha361*gmail.com wrote: > > Sent to CCL by: "Partha Biswas" [partha361(0)gmail.com] > Dear all, > > Can anyone suggest how to use grid=ultrafine command in the geometry > optimization job using Q-Chem pachkge? int(grid=ultrafine)---- this > specification is avaliable in G03 package especially when you are > using DFT method for geometry optimization. > > Thanks in advance. > > Regards, > Partha Biswas > > > > -= This is automatically added to each message by the mailing script > =- > To recover the email address of the author of the message, please > change> Conferences: http://server.ccl.net/chemistry/announcements/ > conferences/> > From owner-chemistry@ccl.net Sat Sep 11 15:49:00 2010 From: "Ernst-Walter Knapp knapp[-]chemie.fu-berlin.de" To: CCL Subject: CCL: Gsolv - pKa - Frequency Message-Id: <-42742-100911111814-31671-9vYtzCEF0CDgFjgyTXpMHg]~[server.ccl.net> X-Original-From: Ernst-Walter Knapp Content-Type: multipart/alternative; boundary="------------030003030905070906090009" Date: Sat, 11 Sep 2010 17:07:36 +0200 MIME-Version: 1.0 Sent to CCL by: Ernst-Walter Knapp [knapp===chemie.fu-berlin.de] This is a multi-part message in MIME format. --------------030003030905070906090009 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Dear Toomas, Your view is completely right. We recently showed how one can compute pKas and redox potentials for a number of different chemical compounds. The RMSDs with measured values are about half a pH unit and 50 mV, respectively. See M. Schmidt am Busch and E.W. Knapp: Accurate pK_a determination for a heterogeneous set of organic molecules, ChemPhysChem *5* (2004) 1513--1522. and M. Schmidt am Busch and E.W. Knapp: One-electron reduction potential for oxygen- and sulfur-centered organic radicals in protic and aprotic solvents, J. Am. Chem. Soc. *127* (2005) 15730-15737. By alternating the DFT functional and combining it with a post SCF corretion we could also compute redox potentials of single nuclear transition metal complexes involving Fe, Ni, Mn with RMSDs to measured values of about 60 mV. See: A. Galstyan and E.W. Knapp: Accurate redox potential computations of mononuclear iron, manganese and nickel model complexes, J. Comp. Chem. *30* (2009) 203-211. Best wishes, Walter -- |---------------------------------------------------------------------| | Dr. Ernst-Walter Knapp email: knapp_-_chemie.fu-berlin.de | | Free University of Berlin Tel.: +49 30 838 54387 | | Department of Biology, Chemistry, Pharmacy Fax.: +49 30 838 56921 | | Institute of Chemistry& Biochemistry | | Macromolecular Modeling and Simulation of Biomolecular Systems | | Fabeckstrasse 36A | | D-14195 Berlin | | Germany www: http://agknapp.chemie.fu-berlin.de | |---------------------------------------------------------------------| Am 11.09.2010 16:13, schrieb Andreas Klamt klamt]|[cosmologic.de: > > Sent to CCL by: Andreas Klamt [klamt()cosmologic.de] > Dear Toomas, > > indeed, I have submitted such a paper recently together with a group > in Australia. > I hope it appears soon. > > Andreas > > Am 10.09.2010 12:01, schrieb Toomas Tamm tt-ccl2(0)yki.ttu.ee: >> Sent to CCL by: Toomas Tamm [tt-ccl2,,yki.ttu.ee] >> On Sun, 2010-09-05 at 10:45 -0500, Christopher Cramer cramer..umn.edu >> wrote: >> >>> At that point, the "best" (in my opinion) way to define the free >>> energy in solution is to do a continuum calculation and add the >>> derived free energy of solvation to the gas phase free energy. >> I have been using this (or similar) schemes and trying to very briefly >> justify them in the resulting papers. This has led to questions from >> reviewers about the approximations, and I have had no better place to >> refer them to than the CCL archives. >> >> Is there a research paper (or book) which could be referenced which >> would explain and justify this way of calculating free energies in >> solution? If there is none, here is a suggestion to someone >> authoritative (Chris, Andreas, ...) to write one. >> > > --------------030003030905070906090009 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 8bit Dear Toomas,

Your view is completely right.
We recently showed how one can compute pKas
and redox potentials for a number of different chemical compounds.
The RMSDs with measured values are about half a pH unit and
50 mV, respectively.
See
M. Schmidt am Busch and E.W. Knapp: Accurate pKa determination for a heterogeneous set of organic molecules, ChemPhysChem 5 (2004) 15131522.
and
M. Schmidt am Busch and E.W. Knapp: One-electron reduction potential for oxygen- and sulfur-centered organic radicals in protic and aprotic solvents, J. Am. Chem. Soc. 127 (2005) 15730-15737.

By alternating the DFT functional and combining it with a post SCF corretion
we could also compute redox potentials of single nuclear transition metal complexes
involving Fe, Ni, Mn with RMSDs to measured values of about 60 mV.
See:
A. Galstyan and E.W. Knapp: Accurate redox potential computations of mononuclear iron, manganese and nickel model complexes, J. Comp. Chem. 30 (2009) 203-211.

Best wishes, Walter

-- 

|---------------------------------------------------------------------|
|  Dr. Ernst-Walter Knapp            email: knapp_-_chemie.fu-berlin.de |                  
|  Free University of Berlin                   Tel.: +49 30 838 54387 |
|  Department of Biology, Chemistry, Pharmacy  Fax.: +49 30 838 56921 |
|  Institute of Chemistry & Biochemistry                              |
|  Macromolecular Modeling and Simulation of Biomolecular Systems     |
|  Fabeckstrasse 36A                                                  |
|  D-14195 Berlin                                                     |
|  Germany                    www: http://agknapp.chemie.fu-berlin.de |
|---------------------------------------------------------------------|



Am 11.09.2010 16:13, schrieb Andreas Klamt klamt]|[cosmologic.de:

Sent to CCL by: Andreas Klamt [klamt()cosmologic.de]
 Dear Toomas,

indeed, I have submitted such a paper recently together with a group in Australia.
I hope it appears soon.

Andreas

Am 10.09.2010 12:01, schrieb Toomas Tamm tt-ccl2(0)yki.ttu.ee:
Sent to CCL by: Toomas Tamm [tt-ccl2,,yki.ttu.ee]
On Sun, 2010-09-05 at 10:45 -0500, Christopher Cramer cramer..umn.edu
wrote:

  At that point, the "best" (in my opinion) way to define the free
energy in solution is to do a continuum calculation and add the
derived free energy of solvation to the gas phase free energy.
I have been using this (or similar) schemes and trying to very briefly
justify them in the resulting papers. This has led to questions from
reviewers about the approximations, and I have had no better place to
refer them to than the CCL archives.

Is there a research paper (or book) which could be referenced which
would explain and justify this way of calculating free energies in
solution? If there is none, here is a suggestion to someone
authoritative (Chris, Andreas, ...) to write one.






  


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