From chemistry-request@server.ccl.net  Thu May  4 05:32:34 2000
Received: from dual.fqspl.com.pl (dual.fqspl.com.pl [212.244.147.6])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id FAA01610
	for <chemistry@ccl.net>; Thu, 4 May 2000 05:32:31 -0400
Received: from victor (victor.fqspl.com.pl [10.10.10.5])
	by dual.fqspl.com.pl (8.9.3/8.9.3) with SMTP id KAA01137
	for <chemistry@ccl.net>; Thu, 4 May 2000 10:36:52 +0200
Message-ID: <004301bfb5ab$0b4fd6c0$050a0a0a@victor.fqspl.com.pl>
From: "Victor Anisimov" <victor@fqspl.com.pl>
To: <chemistry@ccl.net>
Subject: Re: CCL:Quantum CAChe?
Date: Thu, 4 May 2000 11:28:01 +0200
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 4.72.3110.5
X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3

Hi,

That's may be not so useless idea to talk about strength and weakness of
particular commercial software on CCL, I think. It will also give good
feedback for developers of these programs.


-----Original Message-----
From: Yeoh Hak Koon <yeohakoon@hotmail.com>
Subject: CCL:Quantum CAChe?


:Could somebody who has experience using this software share some views
:on its suitability in the following?
:
:(a) Goodness in UV-Vis spectra simulation : overall shape and lambda max
:for transition metal complexes.  My main interest is in 3rd. row
:transition elements.


CAChe uses ZINDO for UV-Vis spectra calculations. It is general
spectroscopical semiempirical engine. Results of better quality for transition
metals can be obtained by MOPAC2000, but it supports only Fe, Pt, Cu, Ag, Mo
elements. If compounds of these elements are subject of semiempirical
research then one may need to consider MOPAC2000 as a solution because
quality of these parameters are really good.

:(b) Solvation models, mainly of water.  How well it incorporates its
:effects on orbital energies, and UV-Vis spectra?


As far as I know ZINDO does not support solvent effects. Please correct me
if I am wrong. Solvent simulations for UV-Vis spectra can be done by
MOPAC2000. Transition metals are not supported yet for this kind of
calculations but gas phase UV spectra can be calculated.

:(c) Any other points that you wish to highlight for consideration...like
:recommending another software!


If one needs better precision than semiempirical methods can provide then
DFT methods can be considered first as a cost effective solution. CAChe
includes DGauss module that can do this work.

CAChe does not include ab initio module but it may not be extremely
necessary. Keeping in mind that CAChe has been designed for synthetic
chemists who work with practical size molecules (but not model ones) and
need easy to use and fast computational tools then set of molecular
mechanics and semiempirical methods together with DFT engine provides
robust solution for most of computational chemistry problems.

This is a choice that we do as researches, either we solve theoretical
chemistry problem then one may need such tools like Jaguar Titan, for
example, or we solve a problem of a chemical experiment for what CAChe
has been designed I think perfectly.


With best regards,

Victor.

=========================================================================
Victor Anisimov, PhD, Software Researcher - Computational Chemistry
FQS Poland, Palac Pugetow, ul. Starowislna 13-15, 31-038 Krakow, Poland
Email: victor@fqspl.com.pl  Tel.(+48 12) 429 4345  Fax(+48 12) 429 6124
=========================================================================




From chemistry-request@server.ccl.net  Thu May  4 05:46:37 2000
Received: from oxmail.ox.ac.uk (oxmail2.ox.ac.uk [163.1.2.1])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id FAA01702
	for <chemistry@ccl.net>; Thu, 4 May 2000 05:46:36 -0400
Received: from ermine.ox.ac.uk ([163.1.2.13])
	by oxmail.ox.ac.uk with esmtp (Exim 3.12 #1)
	id 12nIDB-0002x5-00
	for chemistry@ccl.net; Thu, 04 May 2000 10:46:25 +0100
Received: from ivan (helo=localhost)
	by ermine.ox.ac.uk with local-esmtp (Exim 3.13 #1)
	id 12nIDA-0007VY-00
	for chemistry@ccl.net; Thu, 04 May 2000 10:46:24 +0100
Date: Thu, 4 May 2000 10:46:24 +0100 (BST)
From: "Ivan I. Oleinik" <ivan.oleinik@materials.oxford.ac.uk>
To: CCL <chemistry@ccl.net>
Subject: TB-LMTO-ASA 
Message-ID: <Pine.OSF.4.21.0005041034070.29974-100000@ermine.ox.ac.uk>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

Dear colleagues,

Maybe I am appealing to a wrong audience, but I found some discussions in
CCL about computational solid state theory. Hopefully people from solid
state community also read CCL mailing.

I am trying to analyze the ab-initio results in terms of simple and
chemically transparent orthogonal tight-binding model with minimal basis
set. These are calculations for the system with periodic boundary
conditions. I know that this can be automatically done within
Tight-binding LMTO program developed by Ole Andersen's group in Stuttgart.
The code that we have in our group is mainly used for standard
self-consistent LMTO calculations of electronic structure. The TB-LMTO-ASA
manual is quite good but it does not contain description of extracting
tight-binding parameters from LMTO data.

Does anybody have an experience in this area to give some technical
advice? Are there any proper technical notes with simple test examples?

Thanks,

Ivan Oleinik.

------------------------------------------------------------------------
Dr. Ivan I. Oleinik             E-mail : ivan.oleinik@materials.ox.ac.uk
Department of Materials
University of Oxford
Parks Road
Oxford OX1 3PH                     Tel : +44 (0)1865 283325
United Kingdom                     Fax : +44 (0)1865 273764 
------------------------------------------------------------------------



From chemistry-request@server.ccl.net  Thu May  4 06:00:52 2000
Received: from gpo.cam.msi-eu.com (cam.msi-eu.com [192.190.183.254])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id GAA01788
	for <chemistry@ccl.net>; Thu, 4 May 2000 06:00:51 -0400
Received: from msi-eu.com (dhcp105.cam.msi-eu.com [172.27.65.105])
	by gpo.cam.msi-eu.com (8.9.3/8.9.3/Debian/GNU) with ESMTP id KAA24640
	for <chemistry@ccl.net>; Thu, 4 May 2000 10:58:40 +0100
Message-ID: <391149D0.8C7D046F@msi-eu.com>
Date: Thu, 04 May 2000 10:58:40 +0100
From: Stephen Todd <stodd@msi-eu.com>
X-Mailer: Mozilla 4.7 [en] (WinNT; I)
X-Accept-Language: en
MIME-Version: 1.0
To: chemistry@ccl.net
Subject: QSPR data sets
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit


Hi there,

I am currently trying to write a tutorial based on QSPR. However, I
cannot find complete data sets and the descriptors I would need. This
can be a QSPR on any materials science related subject and must include
all the experimental information/datasets that I would need.

I would be writing this tutorial using the Cerius2 qsar package.

Does anyone know of any freely available datasets that I can use ?

Cheers in advance.

Stephen Todd

--
Dr Stephen Todd
Materials Science - Training          tel: +44 1223 507568
Molecular Simulations Ltd             fax: +44 1223 413301
240/250 The Quorum                    email: stodd@msi-eu.com
Barnwell Road
Cambridge CB5 8RE
England



From chemistry-request@server.ccl.net  Thu May  4 10:16:14 2000
Received: from pollux.chem.umn.edu (pollux.chem.umn.edu [128.101.156.56])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id KAA03920
	for <chemistry@ccl.net>; Thu, 4 May 2000 10:16:14 -0400
Received: (from cramer@localhost)
	by pollux.chem.umn.edu (8.9.3/8.9.3) id JAA19263;
	Thu, 4 May 2000 09:16:01 -0500 (CDT)
From: Christopher Cramer <cramer@pollux.chem.umn.edu>
Message-Id: <200005041416.JAA19263@pollux.chem.umn.edu>
Subject: CCL:Quantum CAChe? (fwd)
To: chemistry@ccl.net
Date: Thu, 4 May 2000 09:16:01 -0500 (CDT)
Cc: truhlar@chem.umn.edu (Don Truhlar), jli@pollux.chem.umn.edu (Jiabo Li)
X-Mailer: ELM [version 2.5 PL2]
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

Re:
> 
> :(b) Solvation models, mainly of water.  How well it incorporates its
> :effects on orbital energies, and UV-Vis spectra?
> 
> 
> As far as I know ZINDO does not support solvent effects. Please correct me
> if I am wrong. Solvent simulations for UV-Vis spectra can be done by
> MOPAC2000. Transition metals are not supported yet for this kind of
> calculations but gas phase UV spectra can be calculated.
> 
   Mike Zerner and his group worked with us in incorporating the Vertical
Electrostatic Model 4.2 (VEM42) into ZINDO, which allows calculation of
solvent effects on vertical excitation energies and accounts separately for
the fast and slow parts of the solvent response. Full details of the model
(and a discussion of other relevant approaches) are available in

Li, J.; Cramer, C. J.; Truhlar, D. G. "A Two-Response-Time Model Based on
CM2/INDO/S2 Electrostatic Potentials for the Dielectric Polarization
Component of Solvatochromic Shifts on Vertical Excitation Energies" Int. 
J. Quant. Chem. 2000, 77, 264.

   While this paper does not provide solvation parameters for transition
metals, such a parameterization would be quite straightforward.

Chris Cramer
-- 

Christopher J. Cramer
University of Minnesota
Department of Chemistry
207 Pleasant St. SE
Minneapolis, MN 55455-0431
--------------------------
Phone:  (612) 624-0859 || FAX:  (612) 626-2006
cramer@pollux.chem.umn.edu
http://pollux.chem.umn.edu/~cramer


From chemistry-request@server.ccl.net  Thu May  4 12:25:51 2000
Received: from mailer.psc.edu (mailer.psc.edu [128.182.58.100])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id MAA04502
	for <chemistry@server.ccl.net>; Thu, 4 May 2000 12:25:50 -0400
Received: from pscuxc.psc.edu (pscuxc.psc.edu [128.182.66.177])
	by mailer.psc.edu (8.9.3/8.9.3/psc) with ESMTP id MAA07667;
	Thu, 4 May 2000 12:25:37 -0400 (EDT)
Received: from localhost (wymore@localhost)
	by pscuxc.psc.edu (8.9.3/8.9.3/psc) with ESMTP id MAA29767;
	Thu, 4 May 2000 12:25:36 -0400 (EDT)
Date: Thu, 4 May 2000 12:25:36 -0400 (EDT)
From: Troy Wymore <wymore@psc.edu>
To: amber@cgl.ucsf.edu
cc: charmm-bbs@csir.org, chemistry@server.ccl.net
Subject: NMR Biomolecular Structure Determination Workshop
In-Reply-To: <Pine.OSF.4.05.10004031423170.31756-100000@pscuxc.psc.edu>
Message-ID: <Pine.OSF.4.05.10005041212400.26173-100000@pscuxc.psc.edu>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII



 *************************************************************
 PSC BIOMEDICAL INITIATIVE WORKSHOPS 2000 
 
 
                      STRUCTURE DETERMINATION USING NMR
 		      JULY 26-29 
 		      Application Deadline:  June 14
 
The objective of this workshop is to introduce participants to the different
techniques for the elucidation of solution structures of biological
macromolecules from nuclear magnetic resonance data. The programs AMBER and
MORASS will be discussed. In addition to lectures, there will be extensive
hands-on sessions.  Participants are encouraged to work on the examples
provided or on their own experimental data. No prior supercomputing experience
is necessary. 
 
For specific details, including an electronic application form, see:
 
http://www.psc.edu/biomed/workshops/workshops.htm#NMR
 
                               

If you have any questions, please contact Nancy Blankenstein at
blankens@psc.edu or
412/268-4960 (FAX).
 
Many thanks for your interest and help.
  
 *******************************************************************************


From chemistry-request@server.ccl.net  Thu May  4 04:26:52 2000
Received: from mail.unifi.it (mail.unifi.it [150.217.1.31])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id EAA01280
	for <chemistry@ccl.net>; Thu, 4 May 2000 04:26:51 -0400
Received: from blu.chim1.unifi.it by unifi.it (PMDF V5.2-32 #38165)
 with ESMTP id <01JOZYWSD4DM0005M1@unifi.it> for chemistry@ccl.net; Thu,
 4 May 2000 10:26:38 MET
Received: (from uucp@localhost) by blu.chim1.unifi.it (AIX4.2/UCB 8.7/8.7)
 id DAA15842 for <chemistry@ccl.net>; Thu, 04 May 2000 03:25:57 -0500 (CDT)
Received: from UNKNOWN(150.217.39.51), claiming to be "chim1.unifi.it" via SMTP
 by blu, id smtpddzonEa; Thu May  4 03:25:51 2000
Date: Thu, 04 May 2000 10:32:11 +0200
From: Alessandro Bencini <sandro@chim1.unifi.it>
Subject: SCQC-2000: Call fo Participants
To: chemistry@ccl.net
Message-id: <3911358B.D2010B67@chim1.unifi.it>
Organization: Dipartimento di Chimica
MIME-version: 1.0
X-Mailer: Mozilla 4.5 [en] (Win98; I)
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 8BIT
X-Accept-Language: en

Dear Colleagues,

enclosed please find the information on the SCQC-2000 Summer School.
I would greatly appreciate if could send the information to all the interested
persons in your groups.

I apologize if you will receive this mail also from other mailing lists.

Regards,

Alessandro

______________________________________________________________________

Second Summerschool on Computational Quantum Chemistry
SCQC-2000
Milan, Italy, July 24-28, 2000


 CALL FOR PARTICIPANTS

The goal of the Summerschool  (SCQC-2000) is to introduce the participants to
the methodologies of modern quantum chemical
computation. The course is directed towards young researchers who apply (or who
plan on applying) computation to their own research.
The school will mainly focus on practical aspects of computational quantum
chemistry, and is built around a kernel of "hands-on" exercises.
The exercises are accompanied by a series of lectures which illustrate the
methodologies used in the practical assignments. The first three
days cover topics of general interest. During the last two days the participants
will be free to select practical assignments among the
following subjects: Calculations of ESR-NMR Spectra; Molecular Magnetism;
Applications of DFT to the calculations of excited states or 
Ab initio Molecular Dynamics. 

LOCATION and SCIENTIFIC ACTIVITY:
The first edition of the SCQC was held in Manno (CH), July 27-31, 1998.
The second edition will be hosted by CILEA (Consorzio Interuniversitario
Lombardo per l'Elaborazione Automatica) in Segrate (MI), Italy.
Current topics in Computational Quantum Chemistry will be covered by lectures:
* Hartree-Fock theory  and Electron correlation ,  H.P. Lüthi, ETHZ, Zurich,CH
* Density Functional Theory  A. Goursot, ENSCM, Montpellier, F
* The Potential Energy Surface  J. B. Foresman, York College of PA, USA
* Electron Density Analysis and Observables , S. Polezzo, Univ. of
Milano-Bicocca, I 
* Correlated Methods , P. Fantucci, University of Milano -Bicocca, It
* Solute-Solvent Interactions  V. Barone, Universitty of Naples, I
* Molecular Magnetic Properties  A. Bencini, University of Florence, I
* NMR and ESR spectroscopy  V. Malkin, Slovak Acad. of Science, Bratislava,SL 
* Excited States  R. Amos, Cambridge University, UK
* Ab initio Molecular Dynamics , A. Sgamellotti, University of Perugia,
I 

Practical assignment modules will make the students familiar with the
use of the best  computer programs  for solution of chemical problems.

IMPORTANT INFORMATIONS
On-line information  on SCQC-2000 will be found on the web site:
 
http://www.cilea.it/Paginecorsi/CSCS/CSCS.htm

Participants are kindly requested to fill the on-line Registration Form at the
same location.
The registration fee, which includes accommodation in a student house (23rd-27th
july),
all lunches and the social banquet, is of 500.000 Lit (252.00 Eur) or 650.000
Lit (310.00 Eur) for double
and single room accommodation respectively.
The number of participants is limited to 40, and an early reservation is
needed due to the limited number of rooms available. The deadline for
the registration is June 30,  2000.
A few grants, in the form of partial refunding of the registration fee,
will be available to  young researchers on the basis of their curriculum
vitae et studiorum. Application for grants should be made by e-mailing
to Prof. P. Fantucci after completing the registration form.

The Organizing Committee: 
Prof. Piercarlo Fantucci, (piercarlo.fantucci@unimib.it), Università di
Milano-Bicocca, Milano , I.
Prof. H.P. Lüthi, (luethi@igc.phys.chem.ethz.ch), ETH Zurich, CH.

 
_______________________________________
					
Prof. Alessandro Bencini						 
Università di Firenze 			
Dipartimento di Chimica, Via Maragliano 75/77	
50144 Firenze, Italia			
---------------------------------------		
Tel: +39-0553216338; Fax: 39-(55)-354845	
e-mail: sandro@chim1.unifi.it			
        bencini@dada.it			
_______________________________________


From chemistry-request@server.ccl.net  Thu May  4 09:27:43 2000
Received: from admin.cnrs-orleans.fr (admin.cnrs-orleans.fr [163.9.1.2])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id JAA03718
	for <chemistry@ccl.net>; Thu, 4 May 2000 09:25:24 -0400
Received: from chinon.cnrs-orleans.fr (IDENT:root@chinon.cnrs-orleans.fr [163.9.6.107])
          by admin.cnrs-orleans.fr (8.9.1a/jtpda-5.3.2) with ESMTP id PAA12496
          ; Thu, 4 May 2000 15:24:52 +0200 (MET DST)
Received: (from hinsen@localhost)
	by chinon.cnrs-orleans.fr (8.9.3/8.9.3) id PAA07131;
	Thu, 4 May 2000 15:24:12 +0200
Date: Thu, 4 May 2000 15:24:12 +0200
Message-Id: <200005041324.PAA07131@chinon.cnrs-orleans.fr>
X-Authentication-Warning: chinon.cnrs-orleans.fr: hinsen set sender to hinsen@cnrs-orleans.fr using -f
From: hinsen@dirac.cnrs-orleans.fr
To: Jochen@pc1.uni-duesseldorf.de
CC: chemistry@ccl.net
In-reply-to: <14607.12187.879318.237673@yogi.pc1.uni-duesseldorf.de> (message
	from Jochen Kuepper on Tue, 2 May 2000 21:42:19 +0200 (CEST))
Subject: Re: CCL:Open Source scientific software
References: <200002131232.HAA05833@server.ccl.net> <14607.12187.879318.237673@yogi.pc1.uni-duesseldorf.de>

>     > More than a bit of effort would be needed ! Old academic
>     > research ideas of free circulation of software are continuously
>     > decreasing, in spite of Linux. And Linux will probably not stay
> 
> Sad enough, but I have to agree.

Even free circulation of ideas is getting rarer, due to patents,
intentionally withheld details in publications, etc. All of which is
a consquence of a more and more "market-oriented" approach to science.
Instead of encouraging scientists to become "profitable", research funding
organizations ought to insist on the free dissemination of all results
and byproducts (such as software) of all publicly funded research.

> To my mind it is very much up to you to decide where we are going. If
> we join efforts to make nice GUIs for our programs we do write anyway
> (to be ahead), we will get them.
> 
> If we pay scientific software vendors (the money they need) for
> support and enhancements of their product instead of paying fees to
> obtain it, and also favor OpenSource software (not saying "free beer"
> software !) to closed source products, we will get them !

An interesting approach would be to commission (and pay) professional
programmers to produce scientific software that is then made available
as Open Source. That way you pay for what you want (the software) but
not for what you don't need (the marketing and legal departments of
software companies).
-- 
-------------------------------------------------------------------------------
Konrad Hinsen                            | E-Mail: hinsen@cnrs-orleans.fr
Centre de Biophysique Moleculaire (CNRS) | Tel.: +33-2.38.25.55.69
Rue Charles Sadron                       | Fax:  +33-2.38.63.15.17
45071 Orleans Cedex 2                    | Deutsch/Esperanto/English/
France                                   | Nederlands/Francais
-------------------------------------------------------------------------------


From chemistry-request@server.ccl.net  Thu May  4 04:30:17 2000
Received: from yogi.pc1.uni-duesseldorf.de (yogi.pc1.uni-duesseldorf.de [134.99.152.44])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id EAA01322
	for <chemistry@ccl.net>; Thu, 4 May 2000 04:30:11 -0400
Received: (from jochen@localhost)
	by yogi.pc1.uni-duesseldorf.de (8.9.3/8.9.3) id KAA00845;
	Thu, 4 May 2000 10:29:45 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Message-ID: <14609.13560.784103.574714@yogi.pc1.uni-duesseldorf.de>
Date: Thu, 4 May 2000 10:29:44 +0200 (CEST)
From: Jochen Kuepper <Jochen@pc1.uni-duesseldorf.de>
To: Roy Jensen <royj@uvic.ca>
CC: CCL <chemistry@ccl.net>
Subject: Re: CCL:Sum: nonlinear regressions
In-Reply-To: <0m52hs0lnn7d8t8hvetair31kdddsb92ii@4ax.com>
References: <20000428125436.94966.qmail@hotmail.com>
	<14603.8140.852817.247935@yogi.pc1.uni-duesseldorf.de>
	<0m52hs0lnn7d8t8hvetair31kdddsb92ii@4ax.com>
X-Mailer: VM 6.72 under 21.1 (patch 9) "Canyonlands" XEmacs Lucid
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by server.ccl.net id EAA01323

>>>>> "Roy" == Roy Jensen <royj@uvic.ca> writes:

    > Jochen Seeing as I cited references that stated Solver worked
    > well, you should cite references to the contrary -- especially
    > with the extravagant claims you make.

e.g.

@Article{McCullough_CompStat31_27,
  author =	 {B. D. Mc Cullough and Bery Wilson},
  title =	 {On the Accuracy of Statistical Procedures in
                  Microsoft Excel},
  journal =	 {Comput. Statist. Data Anal.},
  year =	 1999,
  volume =	 31,
  pages =	 27
}

Jochen
-- 
Heinrich-Heine-Universität
Institut für Physikalische Chemie I
Jochen Küpper
Universitätsstr. 1, Geb. 26.43 Raum 02.29
40225 Düsseldorf, Germany
phone ++49-211-8113681, fax ++49-211-8115195
http://www.Jochen-Kuepper.de


From chemistry-request@server.ccl.net  Thu May  4 18:28:50 2000
Received: from red.cache.fujitsu.com (root@red.cache.fujitsu.com [134.172.63.2])
	by server.ccl.net (8.8.7/8.8.7) with ESMTP id SAA06277
	for <chemistry@ccl.net>; Thu, 4 May 2000 18:28:49 -0400
Received: from daveg.fsba.com (DELL.cache.fujitsu.com [134.172.63.7])
	by red.cache.fujitsu.com (8.9.3/8.9.3/3) with ESMTP id PAA03149;
	Thu, 4 May 2000 15:28:11 -0700
Message-Id: <4.3.0.20000504151909.00b571c0@red.cache.fujitsu.com>
X-Sender: daveg@red.cache.fujitsu.com
X-Mailer: QUALCOMM Windows Eudora Version 4.3
Date: Thu, 04 May 2000 15:24:58 -0700
To: <chemistry@ccl.net>
From: David Gallagher <dgallagher@cache.fujitsu.com>
Subject: Quantum CAChe?
Cc: "Victor Anisimov" <victor@fqspl.com.pl>
In-Reply-To: <004301bfb5ab$0b4fd6c0$050a0a0a@victor.fqspl.com.pl>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format=flowed

Regarding ZINDO in CAChe, it includes the SCRF solvation model, and CAChe 
MOPAC includes the COSMO solvation model.

Regards

David Gallagher,
Fujitsu Systems Business of America, Inc.

At 11:28 AM 5/4/00 +0200, Victor Anisimov wrote:
>Hi,
>
>That's may be not so useless idea to talk about strength and weakness of
>particular commercial software on CCL, I think. It will also give good
>feedback for developers of these programs.
>
>
>-----Original Message-----
>From: Yeoh Hak Koon <yeohakoon@hotmail.com>
>Subject: CCL:Quantum CAChe?
>
>
>:Could somebody who has experience using this software share some views
>:on its suitability in the following?
>:
>:(a) Goodness in UV-Vis spectra simulation : overall shape and lambda max
>:for transition metal complexes.  My main interest is in 3rd. row
>:transition elements.
>
>
>CAChe uses ZINDO for UV-Vis spectra calculations. It is general
>spectroscopical semiempirical engine. Results of better quality for transition
>metals can be obtained by MOPAC2000, but it supports only Fe, Pt, Cu, Ag, Mo
>elements. If compounds of these elements are subject of semiempirical
>research then one may need to consider MOPAC2000 as a solution because
>quality of these parameters are really good.
>
>:(b) Solvation models, mainly of water.  How well it incorporates its
>:effects on orbital energies, and UV-Vis spectra?
>
>
>As far as I know ZINDO does not support solvent effects. Please correct me
>if I am wrong. Solvent simulations for UV-Vis spectra can be done by
>MOPAC2000. Transition metals are not supported yet for this kind of
>calculations but gas phase UV spectra can be calculated.
>
>:(c) Any other points that you wish to highlight for consideration...like
>:recommending another software!
>
>
>If one needs better precision than semiempirical methods can provide then
>DFT methods can be considered first as a cost effective solution. CAChe
>includes DGauss module that can do this work.
>
>CAChe does not include ab initio module but it may not be extremely
>necessary. Keeping in mind that CAChe has been designed for synthetic
>chemists who work with practical size molecules (but not model ones) and
>need easy to use and fast computational tools then set of molecular
>mechanics and semiempirical methods together with DFT engine provides
>robust solution for most of computational chemistry problems.
>
>This is a choice that we do as researches, either we solve theoretical
>chemistry problem then one may need such tools like Jaguar Titan, for
>example, or we solve a problem of a chemical experiment for what CAChe
>has been designed I think perfectly.
>
>
>With best regards,
>
>Victor.
>
>=========================================================================
>Victor Anisimov, PhD, Software Researcher - Computational Chemistry
>FQS Poland, Palac Pugetow, ul. Starowislna 13-15, 31-038 Krakow, Poland
>Email: victor@fqspl.com.pl  Tel.(+48 12) 429 4345  Fax(+48 12) 429 6124
>=========================================================================
>
>
>
>
>-= This is automatically added to each message by mailing script =-
>CHEMISTRY@ccl.net -- To Everybody    |   CHEMISTRY-REQUEST@ccl.net -- To 
>Admins
>MAILSERV@ccl.net -- HELP CHEMISTRY or HELP SEARCH
>CHEMISTRY-SEARCH@ccl.net -- archive search    |    Gopher: gopher.ccl.net 70
>Ftp: ftp.ccl.net  |  WWW: http://www.ccl.net/chemistry/   | Jan: jkl@ccl.net
>
>


