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Date: Wed, 07 May 1997 09:05:46 +0200
To: chemistry@www.ccl.net
From: "Knut J. Borve" <knut.borve@kj.uib.no>
Subject: Evaluation of PM3(tm) as a Geometry Generator....
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Dear colleagues;

During the past two years a number of postings to CCL have requested
information about PM3(tm), as published by Spartan Inc. Due to an
unfortunate delay of the paper describing the parametrization, information
has been left to level of rumors and short comments in manuals. In our
research group we felt the need of more information about this method, and
decided to carry out a number of test of relevance to the study of chemical
reactions. The results are now available in the following paper:

Knut J. B=F8rve, Vidar R. Jensen, Tor Karlsen, Jon Andreas St=F8vneng and Ol=
e
Swang=20
"Evaluation of PM3(tm) as a Geometry Generator in Theoretical Studies of
Transition-Metal-Based Catalysts for Polymerizing Olefins"  J.Mol.Model.
1997, 3, 193 - 202

The abstract of this paper is available at:=20
http://science.springer.de/jmm/abstracts/1997/70030193.htm

Sincerely yours

(:-) Knut B=F8rve
Dr. Knut J. B=F8rve, Dept. of Chemistry, Univ. of Bergen, Norway.
Snail-mail: Dept. of Chemistry, All=E9gaten 41, N-5007 Bergen, Norway
E-mail: knut.borve@kj.uib.no; Tel (47) 55 58 33 65; Fax (47) 55 58 94 90.
URL http://www.kj.uib.no/personer/kjborve.html

From grzybek@athena.chemie.uni-erlangen.de  Wed May  7 03:46:04 1997
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Date: Wed, 7 May 1997 09:19:01 +0200 (MDT)
From: Stefan Grzybek <grzybek@athena.chemie.uni-erlangen.de>
To: Vladislav Vassiliev <Vladislav.Vassiliev@BRI.NRC.CA>
cc: CHEMISTRY@www.ccl.net
Subject: Re: CCL:How to calculate pKa values in large proteins?...
In-Reply-To: <Pine.SGI.3.95.970506173020.26892A-100000@bravais.BRI.NRC.CA>
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On Tue, 6 May 1997, Vladislav Vassiliev wrote:
> Dear Netters:
> 
> Let's imagine I have coordinates of a real protein (for example, from
> PDB) and now I would like to know the pKa values of all the residues
> (Asp's, Glu's, Lys's, Arg's, His's) at a given pH. What kind of programs
> could predict these pKa values?
> 
> I would also be interested in any references concerning the approaches of
> this kind of prediction.
> 
> Thanks in advance,
> Dr. V.Vassiliev 

There are different approaches available for this kind of calculation. The
main differences are how the electrostatic potentials and interaction energies
are calculated and how the interacting charges are treated to calculate
ionization states.

To the first point: It is possible to calculate the electrostatic
interactions simply using Coulomb's law with an appropriately choosen
dielectric constant or to use solutions of the Poisson-Boltzmann equation
to calculate interaction energies. The most programs I know of, use
solutions to the Poisson-Boltzmann equation for calculating interaction
energies.

The second point: First is possible to use the Tanford-Roxby approximation
to solve the problem of interactiong ionization states; however this breaks
down if there are strongly interacting residues present. Better is to
consider the real statistical mechanical average over all possible ionization
states. This however has the drawback that calculating the ionization states
of a small protein with only about 25 to 30 ionizable residues already becomes
problematic. Therefore people have invented the 'reduced site' approximation,
monte carlo methods or mixed tanford-roxby/statistical mechanics methods.

Recent developments in this field focus on the incorporation of protein dynamics
or sidechain flexibility into the treatment of pK-calculations.

Some programs I know of:
MacroDox by Scott H. Northrup (uses the Tanford-Roxby approximation)
  http://pirn.chem.tntech.edu/macrodox.html

MEAD by Donald Bashford (bashford@scripps.edu)
  ftp://ftp.scripps.edu/pub/electrostatics/

There has also been developed a pk-calculation program suite in the
lab of Barry Honig by Andreas Windemuth. Mail to pka@cumbnd.bioc.columbia.edu
or windemut@cumbnd.bioc.columbia.edu for further information.

Since there is a large amount of literature in this field, I don't append a
list here. If you are interested, please contact me directly.

Hope this helps,
Stefan Grzybek
---
| Stefan Grzybek   email: grzybek@ruf.uni-freiburg.de           |
|                         grzybek@athena.chemie.uni-erlangen.de |
|                 http://athena.chemie.uni-erlangen.de/~grzybek |
| Universitaet Freiburg, Institut fuer Biologie II, Biochemie   |
| der Pflanzen, Schaenzlestr. 1, D-79104 Freiburg, Germany      |
|     Voice: +49 +761 203-2703 or -2796, Fax: +49 +761 203-2601 |


From chrirena@techunix.technion.ac.il  Wed May  7 04:41:37 1997
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Date: Wed, 7 May 1997 11:03:40 +0300 (IDT)
From: Irena Efremenko <chrirena@techunix.technion.ac.il>
To: CHEMISTRY@www.ccl.net
Subject: large scale calculations
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Dear colleagues,

I need to calculate big (50-100 atoms) second and third row transition
metals clusters with geometry optimization. In this connection I have two
questions. First, does anybody know any available ASED or other EH based
program? Second, how can I do DFT calculations for such clusters and where
can I find corresponding parametrization for Pd, for example?

Thanks in advance,   

                       Dr. Irena Efremenko
                  chrirena@techunix.technion.ac.il
                  Chemical Engeneering Department,  
             Technion, Israel Institute of Technology
               Kyriat Technion, 32000, Haifa, Israel
             Tel. (972)-4-8292902  Fax. (972)-4-8230476



From omar@arkham.boston.sgi.com  Wed May  7 04:45:38 1997
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From: "Omar G. Stradella" <omar@arkham.boston.sgi.com>
Message-Id: <9705070412.ZM18184@arkham.boston.sgi.com>
Date: Wed, 7 May 1997 04:12:09 -0400
In-Reply-To: Xiaofeng Duan <duanx@Picard.ml.wpafb.af.mil>
        "CCL:[Q]TCGMSG on SGI" (May  6, 11:52am)
References: <Pine.SUN.3.91.970506111503.10519A-100000@Picard>
Organization: Silicon Graphics, Inc.
Reply-to: omar@boston.sgi.com
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Subject: Re: CCL:[Q]TCGMSG on SGI
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Hi Xiaofeng,

The problem is that you are running out of semaphore sets. By default,
the machines are configured with a limit of 10. Use systune (as root)
to increase semmni, for example to 60. Another alternative would be
to use the TCGMSG version that is based on MPI from PNNL:

http://www.emsl.pnl.gov:2080/docs/global/tcgmsg.html

Omar

On May 6, 11:52am, Xiaofeng Duan wrote:
> Subject: CCL:[Q]TCGMSG on SGI
> Hi, everyone!
> I am running paralleled GAMESS on SGI machines. I found there is a 
> problem that the TCGMSG which is used to parallel GAMESS only allows me to 
> use maximum 8 processors although the machines has 16 and 32 processors 
> respectively. Following is the error message I got when I tried running 
> TCGMSG for testing program "hello" with 16 processors on the machine 
> which is Origin 2000 having 32 processors:
> -----------------------------------------
> hpc03-1:/fs31/duanx/tcgmsg/ipcv4.0/ parallel hello
>  Creating: host=hpc03-1, user=duanx,
>            file=/fs31/duanx/tcgmsg/ipcv4.0/hello.x, port=2376
>  0: SemSetCreate: n_sem has invalid value 48 (0x30).
> system error message: Permission denied
> 16: interrupt
> -----------------------------------------
> I don't know what caused the above problem. Could somebody give me a help 
> with it?
> Thanks!
> ****************************************
> Xiaofeng Duan, Ph.D
> WL/MLBP, Bldg. 654
> 2941 P St. Ste. 1
> Wright-Patterson AFB, OH 45433
> (513)255-9164
> duanx@Picard.ml.wpafb.af.mil
> ****************************************
> 
> 
> -------This is added Automatically by the Software--------
> -- Original Sender Envelope Address: duanx@Picard.ml.wpafb.af.mil
> -- Original Sender From: Address: duanx@Picard.ml.wpafb.af.mil
> CHEMISTRY@www.ccl.net: Everybody | CHEMISTRY-REQUEST@www.ccl.net: Coordinator
> MAILSERV@www.ccl.net: HELP CHEMISTRY or HELP SEARCH | Gopher: www.ccl.net 73
> Anon. ftp: www.ccl.net   | CHEMISTRY-SEARCH@www.ccl.net -- archive search
>              Web: http://www.ccl.net/chemistry.html 
>-- End of excerpt from Xiaofeng Duan



-- 
+---------------------------------------------------------------------+
Omar G. Stradella, Ph.D.                    Supercomputing Applications 
Silicon Graphics, Inc.                          Computational Chemistry
One Cabot Road, Hudson, MA 01749, USA           N 42 22'41" W 71 33'45"
E-mail: omar@boston.sgi.com Phone: +1-508-567-2258 FAX: +1-508-562-4755 
http://www.sgi.com/ChemBio                  http://reality.sgi.com/omar 
+--------  Ph-nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn  -------+

From dario@rs5.csrsrc.mi.cnr.it  Wed May  7 05:41:38 1997
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Date: Wed, 7 May 1997 11:20:00 +0100
From: dario@rs5.csrsrc.mi.cnr.it (Dario Bressanini)
Message-Id: <9705071020.AA15257@rs5.csrsrc.mi.cnr.it>
To: CHEMISTRY@www.ccl.net
Subject: Electron affinities: Recent reviews ?



Dear CCLers,

Could someone point me to some recent  (say, last 10 years) review
on Atomic and Molecular electron affinities? I am interested
in both Experimental results and in theoretical calcualations as well.
Thanks   DArio Bressanini
dario@rs5.csrsrc.mi.cnr.it

From bruno@antas.agraria.uniss.it  Wed May  7 05:45:49 1997
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Date: Wed, 7 May 1997 10:55:04 +0100 (NFT)
From: "Dr. Bruno Manunza" <bruno@antas.agraria.uniss.it>
To: Andrea Gerson <ctarg@lv.levels.unisa.edu.au>
Cc: chemistry@www.ccl.net
Subject: Re: CCL:dynamics - part force field, part qunatum mechanics
In-Reply-To: <3.0.1.32.19970507100259.006ef954@lv.levels.unisa.edu.au>
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On Wed, 7 May 1997, Andrea Gerson wrote:

> Hi all,
> 
> I am interested in finding out about molecular dynamics codes that contain
> part force field and part qunatum mechanics, that is so the molecule/atoms
> of specific interest can be looked at qunatum mechanically. Does anybody
> know of/about these codes? Do they have a proven track record? Availablility?
> 
> Many thanks
> 
> Andy
> 

Andy,
	you are probably looking for some Car-Parrinello software, there are 
a few of such programs available on the net, for a list of them check the 
software page of our site at http://antas.agraria.uniss.it/software.html
	Also have a look to our Molecular Modeling Links page 
http://antas.agraria.uniss.it/molmod.html, where you'll find links to 
pages of some groups with experience about the problem. 	
	There is also a MM/QM code (PIMM), by  J. Lindner, A. E. Smith, M. 
Kroeker, which may be of your interest; you may check for it at 
http://tutor.oc.chemie.th-darmstadt.de/TZ/AKLindner/pimm_e.html

Hope it helps
Regards
Bruno

Dr Bruno Manunza
DISAABA (Dept. of Agricultural Environm. Sci)
University of Sassari
V.le Italia 39
07100 Sassari, ITALY
phone: 39 79 229215
fax:   39 79 229276
e-mail: bruno@antas.agraria.uniss.it
e-mail: bruno@tharros.dipchim.uniss.it
e-mail: gx6bot81@cray.cineca.it
web: http://antas.agraria.uniss.it


From redime@azur.incm.u-nancy.fr  Wed May  7 05:50:47 1997
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From: "Redime HADJI" <redime@azur.incm.u-nancy.fr>
Message-Id: <9705071114.ZM26589@azur.incm.u-nancy.fr>
Date: Wed, 7 May 1997 11:14:03 -0400
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To: chemistry@www.ccl.net
Subject: CCL :micelles
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	Hi,
these are your answers on my question about MD simulation of micelles.
Thanks for your participation.
		Redime


1-------------------------------------------------------
{*} molecular dynamics simulations of MICELLE(S), conformational behaviour of
{*} peptides in micelles (in paticular in SDS micelles).

Please contact Dr. Sudha Veeraraghavan at Tufts U. She has done a lot of
work in this area. Her email address is:  sudha@biba.med.tufts.edu

Cheers
-raman
___________________________________________________________________
C.S.Raman                    Tel: (714) 824-4322
University of California     Fax: (714) 824-8540
Dept. MB & B                 email: raman@indigo1.biomol.uci.edu
3205 Bio Sci II
Irvine, CA 92697-3900
-------------------------------------------------------------------
In a time of drastic change it is the learners who inherit the
future.  The learned usually find themselves equipped to live
in a world that no longer exists.  --Eric Hoffer
___________________________________________________________________

2--------------------------------------------------------------------
Check MacKerell, J.Phys.Chem. 1995; 99: 1846 which documents a
simulation of a SDS micelle.  Refences to other works may be found in
that paper.

Alex MacKerell, Ph.D.
Assistant Professor
School of Pharmacy
University of Maryland at Baltimore
20 North Pine Street
Baltimore, MD  21201
410-706-7442
410-706-0346 (fax)

alex@mmiris.ab.umd.edu
http://www.pharmacy.ab.umd.edu/~alex/

3--------------------------------------------------------------------
A search on the Beilstein gave these results:

Author:
               Rusling, James F.; Kumosinski, Thomas F.
 Reference:
               Journal, JPCHAX, J.Phys.Chem., EN, 99, 22, 1995, 9241-9247
 Title:
               An Approximation to Hydrophobic Attraction for Molecular
               Dynamics of Self-Assembled Surfactant Aggregates

uthor:
               MacKerell, Alexander D.
 Reference:
               Journal, JPCHAX, J.Phys.Chem., EN, 99, 7, 1995, 1846-1855
 Title:
               Molecular Dynamics Simulation Analysis of a Sodium Dodecyl
               Sulfate Micelle in Aqueous Solution: Decreased Fluidity of
the
               Micelle Hydrocarbon Interior


Author:
               Guba, Wolfgang; Haessner, Rainer; Breipohl, Gerd; Henke,
               Stefan; Knolle, Johen; et al.
 Reference:
               Journal, JACSAT, J.Amer.Chem.Soc., EN, 116, 17, 1994,
               7532-7540
 Title:
               Combined Approach of NMR and Molecular Dynamics within a
               Biphasic Membrane Mimetic: Conformation and Orientation of
the
               Bradykinin Antagonist Hoe 140

Author:
               Klein, Michael L.
 Reference:
               Journal, JCFTEV, J.Chem.Soc.Faraday Trans., EN, 88, 13,
1992,
               1701-1706
 Title:
               Conformations of Flexible Molecules in Fluid Phases

Author:
               Karaborni, S.; O'Connell, J. P.
 Reference:
               Journal, JPCHAX, J.Phys.Chem., EN, 94, 6, 1990, 2624-2631
 Title:
               Molecular Dynamics Simulations of Model Micelles. 4.
Effects of
               Chain Length and Head Group Characteristics


Author:
               Linse, Per
 Reference:
               Journal, JCPSA6, J.Chem.Phys., EN, 93, 2, 1990, 1376-1385
 Title:
               Accurate solution of a highly asymmetric electrolyte:
Molecular
               dynamics simulation and integral equation

Author:
               Watanabe, Kyoko; Klein, Michael L.
 Reference:
               Journal, JPCHAX, J.Phys.Chem., EN, 93, 19, 1989, 6897-6901
 Title:
               Shape Fluctuations in Ionic Micelles


Author:
               Joensson, Bo; Edholm, Olle; Teleman, Olle
 Reference:
               Journal, JCPSA6, J.Chem.Phys., EN, 85, 4, 1986, 2259-2271
 Title:
               Molecular dynamics simulations of a sodium octanoate
micelle in
               aqueous solution


Author:
               Szleifer, I.; Ben-Shaul, A.; Gelbart, W. M.
 Reference:
               Journal, JCPSA6, J.Chem.Phys., EN, 85, 9, 1986, 5345-5358
 Title:
               Chain statistics in micelles and bilayers: Effects of
surface
               roughness and internal energy

Author:
               Woods, M. C.; Haile, J. M.; O'Conell, J.P.
 Reference:
               Journal, JPCHAX, J.Phys.Chem., EN, 90, 9, 1986, 1875-1885
 Title:
               Internal Structure of a Model Micelle via Computer
Simulation. 2.
               Spherically Confined Aggregates with Mobile Head

Author:
               Gruen, David W. R.
 Reference:
               Journal, JPCHAX, J.Phys.Chem., EN, 89, l, 1985, 146-153
 Title:
               A Model for the Chains in Amphiphilic Aggregates. 1.
Comparison
               with a Molecular Dynamics Simulation of a Bilayer

Hope it helps
Regards
Bruno

Dr Bruno Manunza
DISAABA (Dept. of Agricultural Environm. Sci)
University of Sassari
V.le Italia 39
07100 Sassari, ITALY
phone: 39 79 229215
fax:   39 79 229276
e-mail: bruno@antas.agraria.uniss.it
e-mail: bruno@tharros.dipchim.uniss.it
e-mail: gx6bot81@cray.cineca.it
web: http://antas.agraria.uniss.it
------------------------------------------------------

-- 
                      
ooooooooooooooooooooooooooooooooooooooooooooooooooooo                    

 Redime HADJI-PFEFFER       redime@incm.u-nancy.fr
 Lab. Chimie theorique	    Univer. NancyI, France      
 tel:+33-(0)3.83.91.20.00   poste : 32.70
 fax:+33-(0)3.83.91.25.30
 
    La vie est belle et c'est tant mieux     
				J.-J. Vanier
oooooooooooooooooooooooooooooooooooooooooooooooooooooo

From jsl@virgil.ruc.dk  Wed May  7 06:41:40 1997
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From: "Jens Spanget-Larsen" <jsl@virgil.ruc.dk>
Organization: Roskilde Universitetscenter
To: mg2@DEC3600.boa.uni.torun.pl, chemistry@www.ccl.net
Date: Wed, 7 May 1997 11:58:13 +0100
Subject: CCL:G:GAUSSIAN-localization
Priority: normal
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Message-ID: <28BB2481B52@virgil.ruc.dk>


Turski Przemyslaw:

> I have a small request for people who use Gaussian 94.
> I have problems with localization.
> For example in methane CH4 I expected to got 4 equivalent orbitals
> (hibridization sp3) localized on each bond C-H, but it just didn't work.

The molecular orbitals obtained from a Hartree-Fock calculation are 
the so-called canonical orbitals that diagonalize the Fock operator.  
These molecular orbitals are typically "delocalized" over the whole 
of the molecule, they are orthogonal and transform according to the 
irreducible representations of the molecular symmetry point group.  
The canonical orbitals are sometimes characterized as "spectroscopic" 
orbitals; e.g., they have a unique physical significance within the 
context of Koopmans' theorem.  

But molecular orbitals are one-electron wavefunctions and are not 
observables.  In principle, they only serve as convenient building 
blocks in the construction of many-electron wavefunctions.  In fact, 
the determinantal many-electron wavefunction resulting from a 
Hartree-Fock calculation is invariant towards a unitary 
transformation of the occupied orbitals.  It is thus possible to 
transform the canonical set of orbitals into a set of "localized" 
orbitals (a number of localization criteria have been suggested).  
The localized orbitals generally correspond to bond orbitals and 
lone-pairs, and thus preserve the conventional picture dating from 
G.N. Lewis' famous 1916 paper on electron-pair bonds.  However, in 
some cases orbital localization breaks down, f.ex. for aromatic 
pi-systems. 

Localized orbitals can be produced with G94 by using the AIM keyword 
with the BO option, see "Gaussian 94. User's Reference", p 30.  

Jens >--<

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
JENS SPANGET-LARSEN  
Department of Chemistry      Phone:  +45 46757781 + 2710
Roskilde University (RUC)    Fax:    +45 46757721 
P.O.Box 260                  E-Mail: JSL@virgil.ruc.dk
DK-4000 Roskilde, Denmark    http://frederik.ruc.dk/dis/chem/psos
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From windus@ccl.net  Wed May  7 11:41:41 1997
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From: Theresa Windus <windus@ccl.net>
Message-Id: <199705071453.KAA17282@bedrock.ccl.net>
Subject: Reviewers needed
To: CHEMISTRY@www.ccl.net
Date: Wed, 7 May 1997 10:53:59 -0400 (EDT)
Cc: windus@ccl.net
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Hello all!
  Dr. Tim Mattson and I are editing a proceedings for the 
"Computational chemistry on clusters, MPPs and other non-traditional 
computers" symposium held April 13-17, 1997 at the ACS meeting in
San Francisco.  We are now looking for people who would be interested
in reviewing the papers (chapters) of the proceedings.
  If you would be interested, please send me the following information
at windus@ccl.net:

Name
Snail mail address
e-mail address
phone number
area of expertise
how many papers you would like to review (1, 2, or 3)


  We need at least two reviewers for each of the papers, so your
help would be greatly appreciated.

Thanks for your attention,

Theresa Windus
PET ASC MSRC On-site Lead
windus@ccl.net
(937) 255-2715 x218

From awindemu@curagen.com  Wed May  7 14:41:42 1997
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To: Theresa Windus <windus@ccl.net>
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Theresa,

Thanks for asking me for help in reviewing.
I would be happy to review one or two of the papers you
mention. In fact, I would very much apreciate if you could
send me a formal request to review papers, maybe stating
my "outstanding" expertise in molecular modelling, as
I could use such a letter to support my upcoming application
for permanent residence! If it is not too much trouble.
In any case I will be available.

Thanks,

Andreas Windemuth
CuraGen Corporation
555 Long Wharf Drive
New Haven, CT 06511
awindemu@curagen.com
(203) 401 3330 ext 323
Molecular Modelling
1-2


Theresa Windus wrote:
> 
> Hello all!
>   Dr. Tim Mattson and I are editing a proceedings for the
> "Computational chemistry on clusters, MPPs and other non-traditional
> computers" symposium held April 13-17, 1997 at the ACS meeting in
> San Francisco.  We are now looking for people who would be interested
> in reviewing the papers (chapters) of the proceedings.
>   If you would be interested, please send me the following information
> at windus@ccl.net:
> 
> Name
> Snail mail address
> e-mail address
> phone number
> area of expertise
> how many papers you would like to review (1, 2, or 3)
> 
>   We need at least two reviewers for each of the papers, so your
> help would be greatly appreciated.
> 
> Thanks for your attention,
> 
> Theresa Windus
> PET ASC MSRC On-site Lead
> windus@ccl.net
> (937) 255-2715 x218
> 
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From vgusev@triprinceton.org  Wed May  7 18:41:41 1997
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Date: Wed, 07 May 1997 18:19:10 -0400
To: chemistry@www.ccl.net
From: Vladimir Gusev <vgusev@triprinceton.org>
Subject: Butane intermolecular interaction potentials
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Dear list,

	We are about to start the Monte Carlo simulation of butane adsorption in
carbon pores. I would appreciate pointing me to the literature where the
intermolecular potentials of butane (including those in the bulk phase)
were studied.

	Thank you.

Vladimir Gusev
TRI/Princeton				
601 Prospect Ave, P.O. Box 625	     tel: 609/924-3150 ext. 45	
Princeton, NJ 08542, USA	     fax: 609/683-7149
web: http://pluto.njcc.com/~vgusev   




From mebel@linsgi.iams.sinica.edu.tw  Wed May  7 22:41:44 1997
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Date: Tue, 8 May 2001 11:46:35 -0700 (PDT)
From: "A. Mebel" <mebel@linsgi.iams.sinica.edu.tw>
To: Computational Chemistry List <chemistry@www.ccl.net>
Subject: TURBOMOL
Message-ID: <Pine.SGI.3.91.1010508114415.9027B-100000@linsgi.iams.sinica.edu.tw>
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   Dear CCL members:
   Can anyone give me information how I can purchase TURBOMOL belonging 
to the Biosym/MSI company and what is the price and the license conditions.
Thank you very much.
                              Alexander Mebel

