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Date: Wed, 23 Oct 2002 09:54:17 +0200
From: Stefan Bromley <S.T.Bromley@tnw.tudelft.nl>
Subject: Van der Waals parameters for Ge?
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Dear CCL,

does anyone know of any non-bonded VDW parameters for 
Germanium. Specifically we want a reasonable representation of 
the Ge---H non-bonding interaction. So far we have used the 
UFF/Dreiding values and used mixing rules to get a first 
approximation but which seems to give a much too large Ge-H 
equilibrium distance (cf empirical H-Si). We have also seen on the 
web that MM2 may have such parameters but we have been not 
been able to find them. Any ideas?

Thanks,

Stefan   
________________________________________________________

Dr Stefan T. Bromley
Laboratory of Applied Organic Chemistry and Catalysis
DelftChemTech, Delft University of Technology
Julianalaan 136, 2628 BL Delft
The Netherlands

Phone  : + 31 1527 89418
 
e-mail  : S.T.Bromley@tnw.tudelft.nl
________________________________________________________

From chemistry-request@server.ccl.net Wed Oct 23 10:12:33 2002
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Subject: Re: CCL:rotate molecules along princliple moments of inertia
References: <200210221900.PAA2986593@rutchem.rutgers.edu>
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This same problem pops up when I have an ensemble of
identical, but randomly-oriented bodies (proteins)
in solution and I wish to transform them all back to 
- the same - body coordinate system. You get to the body
system by diagonalizing the inertial matix, but I suspect
the problem is that eigenvalues can be returned by the 
numerical routine in any order and with any sign. The 
resulting body coordinate sytems then differ by
permutations and sign changes of axes subject to the
condition that the handedness must be preserved. I seem
to remember this has something to do with permutation groups
so that the required sign changes are related to the 
parity of the permutation (swap axes and you must change a sign
to preserve handedness). At any rate, is there a way of putting
eigenvectors in some kind of canonical order with appropriate
sign so that the diagonalization routines always land you in the
same body system?


 Richard Gillilan
 MacCHESS


From chemistry-request@server.ccl.net Wed Oct 23 07:23:48 2002
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Alice:

There are ways to do this but, if you don't have a lot of files, the
easiest way is just to edit the pdb file.  Usually, water, ions, etc are
after the solute molecule so just cut a past the solute into a new pdb
file.  We have often done this with pdb files and it works fine.

Pete

>>> Alice NgarKit Ko <ako@cse.nd.edu> 10/22/02 09:34PM >>>
Hi,
I would like to know if there is an easy way to edit a PDB file.  I
loaded
the structure into VMD for viewing.  There are a lot of water
molecules
that have traveled far from where I wanted them.  I hope I can use
some
program where I can just pick and delete the water molecules and then
write out the remaining atoms to a new PDB file.  If anyone knows how
to
do this, please let me know.  Thank you very much

Alice



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From chemistry-request@server.ccl.net Wed Oct 23 10:10:19 2002
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Subject: renumbering a pdb file 
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Hi everybody,
I have a problem related with the use of DOCK5.0.
The default output of the docking run is a mol2 file.
In order to visualize the output i need to convert this file to a pdb format.
I've have tried the conversion with Babel but the molecules in the pdb files
have not progressive numbers.

Any suggestion?

Thank you in advance.

Sara

Sara Pacchioni
PhD student
University of Modena e Reggio Emilia
Italy
e-mail: pacchioni.sara@unimore.it


From chemistry-request@server.ccl.net Wed Oct 23 04:43:11 2002
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Hi, a good open source software for your purpose is the "Swiss PDB Viewer"
downloadable at url: http://www.expasy.org/spdbv/
Best reguards
Alessandro

Dott. Alessandro Contini
Istituto di Chimica Organica "Alessandro Marchesini"
Facoltà di Farmacia, Università degli Studi di Milano
Via Venezian, 21 20133 Milano
Tel. +390250314480  Fax +390250314476
http://users.unimi.it/istchimorg/pagconthtm.htm

On Tue, 22 Oct 2002, Alice NgarKit Ko wrote:

> Hi,
> I would like to know if there is an easy way to edit a PDB file.  I loaded
> the structure into VMD for viewing.  There are a lot of water molecules
> that have traveled far from where I wanted them.  I hope I can use some
> program where I can just pick and delete the water molecules and then
> write out the remaining atoms to a new PDB file.  If anyone knows how to
> do this, please let me know.  Thank you very much
>
> Alice
>
>
>
> -= This is automatically added to each message by mailing script =-
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> Ftp: ftp.ccl.net  |  WWW: http://www.ccl.net/chemistry/   | Jan: jkl@ccl.net
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>
>
>
>



From chemistry-request@server.ccl.net Wed Oct 23 11:15:18 2002
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From: Xiang Lu <xiangjun@rutchem.rutgers.edu>
To: reg8@cornell.edu
CC: angelschnur@hotmail.com, chemistry@ccl.net
Subject: Re: CCL:rotate molecules along princliple moments of inertia
Reply-to: xiangjun@rutchem.rutgers.edu


You raised a good point and there are indeed some technical details to go
into to get things "right". While I am not so sure about the mathematics and
physics involved, the procedures I used seem to work fine for my purpose:

[1] Pre-process xyz (n-by-3 matrix) to reset its orientation according to
    the reference frame of the first nucleic acid base; or as defined by the
    first 3 non-linear atoms. This will eliminate the ambiguity (e.g.,
    upside-down) associated with arbitrary initial orientation.
[2] get the co-variance matrix (real symmetric, 3-by-3).
[3] solve the eigensystem (using e.g. jacobi transformation as in Numerical
    Recipes), sort the eigenvalues, and normalize eigenvectors.
[4] check to make sure the third eigenvector is the cross product of the
    first two, otherwise reverse its sign. There are two more permutations
    which can be used to get three orthogonal views.

Does anyone out there have a more rigorous way?

Xiang-Jun

-- 
Dr. Xiang-Jun Lu            | Tel:   (732) 445 4619 (O)
Department of Chemistry     |
Rutgers University          | Fax:   (732) 445 5958
610 Taylor Road             | Email: xiangjun@rutchem.rutgers.edu
Piscataway, NJ 08854-8087   | URL: http://rutchem.rutgers.edu/~xiangjun/


>>>>> "Richard" == Richard Gillilan <reg8@cornell.edu> writes:

Richard> This same problem pops up when I have an ensemble of
Richard> identical, but randomly-oriented bodies (proteins)
Richard> in solution and I wish to transform them all back to 
Richard> - the same - body coordinate system. You get to the body
Richard> system by diagonalizing the inertial matix, but I suspect
Richard> the problem is that eigenvalues can be returned by the 
Richard> numerical routine in any order and with any sign. The 
Richard> resulting body coordinate sytems then differ by
Richard> permutations and sign changes of axes subject to the
Richard> condition that the handedness must be preserved. I seem
Richard> to remember this has something to do with permutation groups
Richard> so that the required sign changes are related to the 
Richard> parity of the permutation (swap axes and you must change a sign
Richard> to preserve handedness). At any rate, is there a way of putting
Richard> eigenvectors in some kind of canonical order with appropriate
Richard> sign so that the diagonalization routines always land you in the
Richard> same body system?


Richard>  Richard Gillilan
Richard>  MacCHESS


From chemistry-request@server.ccl.net Wed Oct 23 05:50:53 2002
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To: Alice NgarKit Ko <ako@cse.nd.edu>
cc: <chemistry@ccl.net>
Subject: Re: CCL:PDB file editing
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hi alice
there are several ways.
The simplest is to remove all water molecules from your pdb file by
using the 'grep -v " HOH "' command and redirect the output into a new
file.
Or using any pdb viewer, display off the waters, and
save the displayed atoms into a new file in the pdb format.


-----------------------------------------------------------------------






On Tue, 22 Oct 2002, Alice NgarKit Ko wrote:

> Hi,
> I would like to know if there is an easy way to edit a PDB file.  I loaded
> the structure into VMD for viewing.  There are a lot of water molecules
> that have traveled far from where I wanted them.  I hope I can use some
> program where I can just pick and delete the water molecules and then
> write out the remaining atoms to a new PDB file.  If anyone knows how to
> do this, please let me know.  Thank you very much
>
> Alice
>
>
>
> -= This is automatically added to each message by mailing script =-
> CHEMISTRY@ccl.net -- To Everybody  | CHEMISTRY-REQUEST@ccl.net -- To Admins
> Ftp: ftp.ccl.net  |  WWW: http://www.ccl.net/chemistry/   | Jan: jkl@ccl.net
>
>
>
>
>
>
>

-- 

****************************************************************************

   \ /
    |
 \ / \ /
  |   |

GITANJALI YADAV
SENIOR RESEARCH FELLOW
BIOINFORMATICS UNIT
NATIONAL INSTITUTE OF IMMUNOLOGY
ARUNA ASAF ALI MARG
NEW DELHI-110067
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From chemistry-request@server.ccl.net Wed Oct 23 12:21:38 2002
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Alice,

There is also a cool emacs pdb mode available from Charlie Bond at Dundee
Uni which is worth playing with (if you like emacs of course...)

Noj

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From chemistry-request@server.ccl.net Wed Oct 23 18:21:31 2002
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Date: Wed, 23 Oct 2002 18:21:25 -0400
From: Paul Czodrowski <pc@rufus.biomed.brown.edu>
To: <chemistry@ccl.net>
Subject: Motion of Proteins: Distance Difference Map
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Hi CCL,

I read something about evaluation of the motion of a protein: they use a
so-called "distance difference map", which take one protein strucuture and
calculates sequentially the distancse between the first C-alpha atom and
all other one. Then it continues with the second C_alpha etc.
I know that this should be really fast to program from scratch, but I'm
not a Pro.

I know about one program from Garry Paul Gippert (GAP - Geometric Analysis
of Proteins)
- http://www.fkem2.lth.se/~garry/programs/gap.html - but the server is
down, so that I can't download it.

Cheers,
Paul

_____________________________________

Paul Czodrowski

Department of Molecular Pharmacology
Biomedical Center
Box G-B4, Brown University
Providence, Rhode Island 02912 USA
Voice: +1 401 863 9841

http;//bms.brown.edu/mierke
_____________________________________



From chemistry-request@server.ccl.net Wed Oct 23 12:34:02 2002
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From: "Czerminski, Ryszard" <ryszard@arqule.com>
To: "'Xiang Lu'" <xiangjun@rutchem.rutgers.edu>, reg8@cornell.edu
Cc: angelschnur@hotmail.com, chemistry@ccl.net
Subject: RE: rotate molecules along princliple moments of inertia
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It seems that the method described in the Kabsch paper is what you are
looking for:

C Wolfgang Kabsch "A solution for the best rotation
C to relate two sets of vectors" Acta Cryst. (1976) A32, 922

R

Ryszard Czerminski   phone: (781)994-0479
ArQule, Inc.         email:ryszard@arqule.com
19 Presidential Way  http://www.arqule.com
Woburn, MA 01801     fax: (781)994-0679


-----Original Message-----
From: Xiang Lu [mailto:xiangjun@rutchem.rutgers.edu]
Sent: Wednesday, October 23, 2002 11:15 AM
To: reg8@cornell.edu
Cc: angelschnur@hotmail.com; chemistry@ccl.net
Subject: CCL:rotate molecules along princliple moments of inertia



You raised a good point and there are indeed some technical details to go
into to get things "right". While I am not so sure about the mathematics and
physics involved, the procedures I used seem to work fine for my purpose:

[1] Pre-process xyz (n-by-3 matrix) to reset its orientation according to
    the reference frame of the first nucleic acid base; or as defined by the
    first 3 non-linear atoms. This will eliminate the ambiguity (e.g.,
    upside-down) associated with arbitrary initial orientation.
[2] get the co-variance matrix (real symmetric, 3-by-3).
[3] solve the eigensystem (using e.g. jacobi transformation as in Numerical
    Recipes), sort the eigenvalues, and normalize eigenvectors.
[4] check to make sure the third eigenvector is the cross product of the
    first two, otherwise reverse its sign. There are two more permutations
    which can be used to get three orthogonal views.

Does anyone out there have a more rigorous way?

Xiang-Jun

-- 
Dr. Xiang-Jun Lu            | Tel:   (732) 445 4619 (O)
Department of Chemistry     |
Rutgers University          | Fax:   (732) 445 5958
610 Taylor Road             | Email: xiangjun@rutchem.rutgers.edu
Piscataway, NJ 08854-8087   | URL: http://rutchem.rutgers.edu/~xiangjun/


>>>>> "Richard" == Richard Gillilan <reg8@cornell.edu> writes:

Richard> This same problem pops up when I have an ensemble of
Richard> identical, but randomly-oriented bodies (proteins)
Richard> in solution and I wish to transform them all back to 
Richard> - the same - body coordinate system. You get to the body
Richard> system by diagonalizing the inertial matix, but I suspect
Richard> the problem is that eigenvalues can be returned by the 
Richard> numerical routine in any order and with any sign. The 
Richard> resulting body coordinate sytems then differ by
Richard> permutations and sign changes of axes subject to the
Richard> condition that the handedness must be preserved. I seem
Richard> to remember this has something to do with permutation groups
Richard> so that the required sign changes are related to the 
Richard> parity of the permutation (swap axes and you must change a sign
Richard> to preserve handedness). At any rate, is there a way of putting
Richard> eigenvectors in some kind of canonical order with appropriate
Richard> sign so that the diagonalization routines always land you in the
Richard> same body system?


Richard>  Richard Gillilan
Richard>  MacCHESS


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From chemistry-request@server.ccl.net Wed Oct 23 11:57:25 2002
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Date: Wed, 23 Oct 2002 11:57:15 -0400 (EDT)
From: Andrzej Lewandowicz <alewand@medusa.bioc.aecom.yu.edu>
To: chemistry@ccl.net
Subject: MEP visualization
Message-ID: <Pine.LNX.4.44.0210231152190.2151-100000@medusa.bioc.aecom.yu.edu>
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Dear,
I have problem with Molecular electrostatic potential visualization by 
Molekel with cube generated by G98. For one molecule the shadows of 
the blue color represent positive values and red negative values,
for another there is exactly reverse, so there is no way to compare MEPs 
by consistent color map.

Is another program to visualize MEP from Gaussian (beside GaussView ?)
or is any way to manage with this problem during visualization by Molekel. 
The change of Vmin/Vmax didn't help.

Andrzej




From chemistry-request@server.ccl.net Wed Oct 23 18:06:32 2002
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From: "Helen Howard-Jones" <chp80e@bangor.ac.uk>
To: <chemistry@server.ccl.net>
Subject: gamess input ERROR
Date: Wed, 23 Oct 2002 23:10:58 +0100
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Many thanks to those of you who replied to my previous request. Only now =
I have another one!!
My test input is this (in internal coords as I want to modify molecule =
later):=20
 $control coord=3Dzmt units=3Dangs scftyp=3DROB3LYP runtyp=3Doptimize =
chrg=3D0
mult=3D1 $basis=3D31 ngauss=3D4
 $zmat
 $END
 $DATA
optimisation benzene:rob3lyp
cnv 6

x
c6 x 1.40304
c1 c6 d1 x a2
c2                   c1   d2       c6    120.     x     0.       0
c3                   c2   d3       c1    120.     x     0.       0
c4                   c3   d4       c2    120.     x     0.       0
c5                   c4   d5       c3    120.     x     0.       0
x1                   c2   1.5       c3    90.      c4   -90.      0
x2                   c3   1.5       c4    90.      c5   -90.      0
x3                   c4   1.5       c5    90.      c6   -90.      0
x4                   c5   1.5       c6    90.      c1   -90.      0
x5                   c6   1.5       c1    90.      c2   -90.      0
x6                   c1   1.5       c2    90.      c3   -90.      0
h1                   c6   h1c6       c1    120.     x6   -90.      0
h2                   c1   h2c1       c2    120.     x1   -90.      0
h3                   c2   h3c2       c3    120.     x2   -90.      0
h4                   c3   h4c3       c4    120.     x3   -90.      0
h5                   c4   h5c4      c5    120.     x4   -90.      0
h6                   c5   h6c5         c6    120.     x5   -90.
variables:
d1=3D1.40585969
d2=3D1.38805889
d3=3D1.40479196
d4=3D1.40323351
d5=3D1.38686601
h1c6=3D1.08160985
h2c1=3D1.08108159
h3c2=3D1.36420291
h4c3=3D1.08174779
h5c4=3D1.0823553
h6c5=3D1.08236572
constants:
a2 60.0
 $END

BUT: get following error message:
RUN TITLE
     ---------
 optimisation
benzene:rob3lyp


 THE POINT GROUP OF THE MOLECULE IS CNV
 THE ORDER OF THE PRINCIPAL AXIS IS     6
 **** ERROR READING VARIABLE NGAUSS   CHECK COLUMN  4
 c6 x 1.40304

 =
....V....1....V....2....V....3....V....4....V....5....V....6....V....7...=
.V....
8
 **** ERROR READING VARIABLE SCFAC    CHECK COLUMN  4
 c6 x 1.40304

 =
....V....1....V....2....V....3....V....4....V....5....V....6....V....7...=
.V..

Im not sure what Im doing wrong! Any help is gratefully received.
Many thanks
Helen

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3315.2870" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>Many thanks to those of you who replied =
to my=20
previous request. Only now I have another one!!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>My test input is&nbsp;this (in internal =
coords as I=20
want to modify molecule later):&nbsp;</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;$control coord=3Dzmt units=3Dangs =
scftyp=3DROB3LYP=20
runtyp=3Doptimize chrg=3D0<BR>mult=3D1 $basis=3D31=20
ngauss=3D4<BR>&nbsp;$zmat<BR>&nbsp;$END<BR>&nbsp;$DATA<BR>optimisation=20
benzene:rob3lyp<BR>cnv 6</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>x<BR>c6 x 1.40304<BR>c1 c6 d1 x=20
a2<BR>c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c1&nbsp;&nbsp; d2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c6&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x&nbsp;&nbsp;&nbsp;&nbsp;=20
0.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>c3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c2&nbsp;&nbsp; d3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c1&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x&nbsp;&nbsp;&nbsp;&nbsp;=20
0.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>c4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c3&nbsp;&nbsp; d4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c2&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x&nbsp;&nbsp;&nbsp;&nbsp;=20
0.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>c5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c4&nbsp;&nbsp; d5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c3&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x&nbsp;&nbsp;&nbsp;&nbsp;=20
0.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>x1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c2&nbsp;&nbsp; 1.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c3&nbsp;&nbsp;&nbsp;=20
90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c4&nbsp;&nbsp;=20
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>x2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c3&nbsp;&nbsp; 1.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c4&nbsp;&nbsp;&nbsp;=20
90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c5&nbsp;&nbsp;=20
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>x3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c4&nbsp;&nbsp; 1.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c5&nbsp;&nbsp;&nbsp;=20
90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c6&nbsp;&nbsp;=20
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>x4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c5&nbsp;&nbsp; 1.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c6&nbsp;&nbsp;&nbsp;=20
90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c1&nbsp;&nbsp;=20
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>x5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c6&nbsp;&nbsp; 1.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c1&nbsp;&nbsp;&nbsp;=20
90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c2&nbsp;&nbsp;=20
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>x6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c1&nbsp;&nbsp; 1.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c2&nbsp;&nbsp;&nbsp;=20
90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c3&nbsp;&nbsp;=20
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>h1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c6&nbsp;&nbsp; h1c6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c1&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x6&nbsp;&nbsp; =
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>h2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c1&nbsp;&nbsp; h2c1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c2&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x1&nbsp;&nbsp; =
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>h3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c2&nbsp;&nbsp; h3c2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c3&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x2&nbsp;&nbsp; =
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>h4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c3&nbsp;&nbsp; h4c3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
c4&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x3&nbsp;&nbsp; =
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>h5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c4&nbsp;&nbsp; h5c4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c5&nbsp;&nbsp;&nbsp;=20
120.&nbsp;&nbsp;&nbsp;&nbsp; x4&nbsp;&nbsp; =
-90.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
0<BR>h6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c5&nbsp;&nbsp; h6c5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
c6&nbsp;&nbsp;&nbsp; 120.&nbsp;&nbsp;&nbsp;&nbsp; x5&nbsp;&nbsp;=20
-90.<BR>variables:<BR>d1=3D1.40585969<BR>d2=3D1.38805889<BR>d3=3D1.404791=
96<BR>d4=3D1.40323351<BR>d5=3D1.38686601<BR>h1c6=3D1.08160985<BR>h2c1=3D1=
.08108159<BR>h3c2=3D1.36420291<BR>h4c3=3D1.08174779<BR>h5c4=3D1.0823553<B=
R>h6c5=3D1.08236572<BR>constants:<BR>a2=20
60.0<BR>&nbsp;$END</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>BUT: get following error =
message:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>RUN TITLE<BR>&nbsp;&nbsp;&nbsp;&nbsp;=20
---------<BR>&nbsp;optimisation<BR>benzene:rob3lyp</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><BR>&nbsp;THE POINT GROUP OF THE =
MOLECULE IS=20
CNV<BR>&nbsp;THE ORDER OF THE PRINCIPAL AXIS IS&nbsp;&nbsp;&nbsp;&nbsp;=20
6<BR>&nbsp;**** ERROR READING VARIABLE NGAUSS&nbsp;&nbsp; CHECK =
COLUMN&nbsp;=20
4<BR>&nbsp;c6 x 1.40304</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial=20
size=3D2>&nbsp;....V....1....V....2....V....3....V....4....V....5....V...=
.6....V....7....V....<BR>8<BR>&nbsp;****=20
ERROR READING VARIABLE SCFAC&nbsp;&nbsp;&nbsp; CHECK COLUMN&nbsp; =
4<BR>&nbsp;c6=20
x 1.40304</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial=20
size=3D2>&nbsp;....V....1....V....2....V....3....V....4....V....5....V...=
.6....V....7....V..</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Im not sure what Im doing wrong! Any =
help is=20
gratefully received.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Many thanks</FONT></DIV>
<DIV><FONT face=3DArial =
size=3D2>Helen</FONT></DIV></FONT></DIV></BODY></HTML>

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From chemistry-request@server.ccl.net Wed Oct 23 19:38:44 2002
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Date: Wed, 23 Oct 2002 19:38:44 -0400 (EDT)
From: Jan Labanowski <jkl@ccl.net>
To: chemistry@ccl.net, microelectronics@asdn.net
Subject: ACS Symposium on Computational Nanotechnology (Nov. 15, 2002, Abstract
  deadline) (fwd)
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---------- Forwarded message ----------
Date: Wed, 23 Oct 2002 15:14:08 -0700
From: Mario Blanco <mario@wag.caltech.edu>
To: jkl@ccl.net
Cc: "wag@wag.caltech.edu" <wag@wag.caltech.edu>
Subject: ACS Symposium on Computational Nanotechnology (Nov. 15, 2002,
     Abstract  deadline)

[....]

CALL FOR PAPERS
Computational Nanotechnology

A Symposium to be held at the
225th ACS National Meeting
Computers in Chemistry Division
March 23-27, 2003
New Orleans, Louisiana

Co-Organizers:
William A. Goddard III (wag@wag.caltech.edu) &
Mario Blanco (mario@wag.caltech.edu)
Beckman Institute 139-74
California Institute of Technology
Pasadena, CA 91125

Summary

This symposium focuses on the computer modeling and simulation of molecular based
nanotechnology components and devices.  Papers on computational methods, currently
under use or under development, which have been applied towards the support of
chemical synthesis of molecular components (bottom-up) and/or fabrication of
devices incorporating molecular components (top-down), are strongly encouraged.
Papers on molecular computer aided design (molecular CAD) and molecular analysis
tools in support of nanotechnology applications are greatly encouraged. Papers on
massively parallel molecular dynamics formulations, suitable for the simulation of large
molecular assemblies as well as multi-scale (Quantum to molecular dynamics, coupled
particle/continuum) simulation methods are also encouraged.  New designs of molecular
devices acting as switches, nano-electromechanical actuators (NEMS), nano-fluidics,
electrically, optically, and/or chemically driven motors, molecular based artificial muscle
fibers, carbon-nanotube and fullerenes based devices, computational bio-nanotechnology
concepts and devices incorporating DNA, proteins, GPCR's, olfactory receptors,
peptides, self-assembled nanotubes and membrane channels and combinations thereof are
also strongly encouraged.

Abstract Deadline: November 15, 2002

Abstract Submission Procedure:  Abstracts must be submitted via the ACS OASys
system by the deadline date. The abstract should arouse interest in the paper and do it
justice. Succinctly state the purpose of the paper and mention important results and
conclusions.  Abstracts are submitted on line at

http://oasys.acs.org/acs/225nm/comp/papers/index.cgi .

Follow instructions and choose this symposium. Once inside write down your abstract ID
and passcode for future reference.

Notice that for this symposium all presentations are oral.  For more information visit
http://www.acs.org/meetings  or contact one of the co-organizers above.


Mario Blanco, PhD                              e-mail:mario@wag.caltech.edu
Director, Molecular Process Simulations        fax:    (626) 585-0918
California Institute of Technology BI 139-74   phone:  (626) 395-2754
Pasadena, CA 91125



