From owner-chemistry@ccl.net  Thu Jul  6 01:39:58 1995
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To: chemistry@ccl.net
Subject: Docking Program
Date: Wed, 05 Jul 95 22:31:53 -0800
From: Song Liu <sliu@mastermodel.ps.uci.edu>


Dear Netter:

I am looking for a docking program that does more global
conformational search.  I would be happy to summarize all responses.

If you can point out possible ftp site for the programs, that would be
really helpful

Thanks in advance

Song Liu
Postdoctoral Researcher
Institute of Biomedical Science
Academia Sinica, Taiwan


From owner-chemistry@ccl.net  Thu Jul  6 03:55:03 1995
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From: moon@kistmail.kist.re.kr (Moon Tae Sung)
Message-Id: <9507060742.AA22773@kistmail.kist.re.kr>
To: chemistry@ccl.net
Subject: dielectric constant


Dear Netters

I am doing protein molecular dynamics simulation using Discover (Biosym Inc.)
[D[A[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C.
I hope to know the dielectric constant that mimics the solvent effect.
[A[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[C[D 
in cvff forcefield.
Thanks.

From owner-chemistry@ccl.net  Thu Jul  6 05:55:03 1995
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Date: Thu, 6 Jul 1995 11:40:43 +0200 (MDT)
From: Johannes Zuegg <zuegg@fochsg01.tu-graz.ac.at>
To: Osc - CompChemList <chemistry@ccl.net>
Subject: Announcement: Enantioselectivity Calc/Displ Programs
Message-Id: <Pine.SGI.3.91.950706113111.8160A-100000@fochsg01.tu-graz.ac.at>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII



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

                                Selectivity 1.0

                              for Mac and Windows

     by: K. Faber, H. Hoenig and A. Kleewein; Copyright (C) December 1994.

                      <http://www-orgc.tu-graz.ac.at>
                <http://www-orgc.tu-graz.ac.at/programs/enantio>

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

Description

This program can be used for the calculation of the selectivity - expressed as
the Enantiomeric Ratio E - of a kinetic resolution of enantiomers for
irreversible reactions. A short description how to operate it is included in
the main window. More detailed information on the theoretical background and of
the merits and limits of the method is described in the help-file. A detailed
paper on this topic will be published in Preparative Biotransformations , S. M.
Roberts (Ed.), Wiley, 1995.

The program may be freely given away but must not be sold.

As this program is still under development, any suggestions and comments for
improvements, corrections, desired additional features or hard- and software
incompatibilities are highly welcome. Please use the contact adress given
below.

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

Programs

   *  Mac - Version 1.0

     The program runs under system 6.X or higher and any standard Macintosh
     configuration should be compatible. The program is available on our site:

     Http://www-orgc.tu-graz.ac.at/programs/enantio/mac

     The program selectiv.hqx and the help-file selhelp.hqx (MS-Word document)
     can be obtained in BinHex-form by clicking on the name. There are no
     preferences to be installed. For the decoding we recommend any application
     from the Stuff/Unstuff-family.

   *  Windows - Version 1.0

     The program is written in VBasic 3.0 and runs with Windows 3.1 or 
     higher. The program is available as a self extracting file or as 
     compressed Zip file on our site:

     Http://www-orgc.tu-graz.ac.at/programs/enantio/win

     Please transfer the program selectiv.exe by clicking on the name and then
     start the program in a local directory on your site. The program will
     create the installation files. The selectiv.zip must be uncompressed with
     pkunzip and includes the same files as the selfextracting file.

(!) In case you encounter a problem or when you need the program on disc or 
via email please contact the adress given below by phone, letter, fax or e-mail.

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

Contact

Kurt Faber (for Mac-Version)

     E-Mail:faber@orgc.tu-graz.ac.at
     Phone:++43-316-873-8254

Helmut Hoenig (for Windows-Version)

     E-Mail:hoenig@orgc.tu-graz.ac.at
     Phone:++43-316-873-8246

     Institute for Organic Chemistry at Technical University of Graz
     Stremayrgasse 16, A-8010 Graz, AUSTRIA
     Fax: ++43-316-811-057

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


Enjoy the program
Johannes Zuegg

---------------------------------------------------------------------
 Institute for Organic Chemistry     Tel  :      +43 [0]316 873-8246
 University of Technology Graz                                  6387 
 Stremayrgasse 16                    Fax  :      +43 [0]316 815710
 A-8010 Graz (Austria)               EMail: Zuegg@orgc.tu-graz.ac.at
---------------------------------------------------------------------


From owner-chemistry@ccl.net  Thu Jul  6 06:25:03 1995
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Date: Thu, 6 Jul 1995 11:10:19 +0100 (BST)
From: A J Turner <chpajt@bath.ac.uk>
To: chemistry@ccl.net
Subject: X11 over the net
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Hi! 

Has anyone succeeded in performing X11 over the internet, via a modem?  I 
have Exceedw and Trumpet and would like to experement with X11, even if 
it runs very slowly.

All the best

Alex

P.S. I have been out of it for a bit - what happened about support for 
this list?


+--------------------------------------------------+
|Alternate E-mail A.J.Turner@Bath.ac.uk            |
|www home @ http://www.bath.ac.uk/~chpajt/home.html|
+--------------------------------------------------+ 


From owner-chemistry@ccl.net  Thu Jul  6 10:22:18 1995
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From: "Hr Dr. S. Shapiro" <toukie@zui.unizh.ch>
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To: chemistry@ccl.net
Subject: BABEL for Linux


Dear Colleagues;

     Does anyone know if the format conversion programme BABEL has been com-
piled for execution under Linux?  If so, kindly send details.

     Also, please send me the FTP site and the name of the subdirectory and
file of the source code for the latest version of BABEL.  (Don't send me
WWW home pages, because I don't have access to the WWW yet.)

     Thanks in advance to all responders.


Sincerely,,

(Dr.) S. Shapiro
ZH, CH
toukie@zui.unizh.ch

From owner-chemistry@ccl.net  Thu Jul  6 11:06:45 1995
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From: rnobes@vishnu.msicam.co.uk (Ross Nobes)
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Subject: Molecular Quantum Mechanics Conference registrations
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Content-Type: text
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    Molecular Quantum Mechanics: Methods and Applications
        University of Cambridge, 3-7 September 1995
__________________________________________________________________

We have now reached the limits imposed by lecture theatre size and
college accommodation, so we are unable to accept any further
registrations.  My apologies if you intended to come but didn't
get round to registering!

-- 
+----------------------------------------------------------------+
| Ross Nobes                                                     |
| Molecular Simulations              Phone:  + 44 1223 413300    |
| 240/250 The Quorum                 Fax:    + 44 1223 413301    |
| Barnwell Road                                                  |
| Cambridge CB5 8RE, UK              E-mail: rnobes@msicam.co.uk |
+----------------------------------------------------------------+


From owner-chemistry@ccl.net  Thu Jul  6 11:51:46 1995
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From: mn1@helix.nih.gov (M. Nicklaus)
Message-Id: <9507061537.AA07640@helix.nih.gov>
To: CHEMISTRY@ccl.net
Subject: SUMMARY: Color Printers


Dear CCL'ers,

This is the summary of the responses I received to my question
on color printers I asked a few weeks ago.  My question as well
as the answers have been slightly edited for the sake of brevity.

I had hoped to receive experience reports on some of the newer
high-end printers such as the Apple Color LaserWriter 12/600 PS,
DEC Colorwriter 1000, Fargo Primera Pro, HP Color LaserJet,
QMS magicolor LX, Seiko Professional ColorPoint 2 PSF, the
Tektronix Phaser models 240, 340, 440, 480, 540, and others; but
presumably these are just too new to have been purchased by 
many groups as of now.

Thanks to all who responded.

Marc C. Nicklaus

======================================================================

QUESTION:
=========
(asked on June 12, 1995)

We are looking at buying a new color printer for our molecular modeling group.
We are interested in a printer that can produce publication-quality output,
such as color figures to be included in manuscripts, or color overhead 
transparencies.  The capability to print on plain paper would be nice but is
not a necessity.  The printer is going to be hooked up to a SG workstation.

Since quite a number of new color printers have been put on the market by 
various manufacturers in the recent past, we'd like to ask everyone about 
their experiences with especially this new crop of machines, and what you
think is the best color printer available at this time for printing, e.g.,
complex protein structures and the like.

======================================================================

ANSWERS:
========

From: shenkin@still3.chem.columbia.edu (Peter Shenkin)

We recently purchased a Tektronix Phaser 140, which is their lowest-
cost model -- ca. $1500, with extra RAM.  It's a 4-color inkjet, and 
can print on plain paper, two special coated papers they sell, or 
transparencies they sell.  It's got serial, AppleTalk and parallel 
ports (I think Ethernet costs extra, but not certain), and is a 
PostScript printer.  You can feed simultaneous input into all ports, 
and it will do its own spooling.

Summary:  we've had it maybe six months, and we love it.  The
blank transparancies are expensive, as are the coated papers.  I
like the less expensive coated paper (non-glossy) best;  copies
come out much better than on plain Xerox paper, I guess because the
ink doesn't soak in as much, but sits closer to the surface.
I think the print quality is really excellent.

If we printed color pages more frequently we'd want a faster and 
more expensive machine, but this one is great for the 10 pages
a week or so we use it for.  It's been very reliable;  changing
the ink cartridges is easy and not messy, and we've never had
problems of any sort, except bringing the machine up the first
day we got it.  (It turned out our third-party supplier had 
plugged the add-on RAM into the wrong slot.)

Peter S. Shenkin, Box 768 Havemeyer Hall, Chemistry, Columbia Univ.,*
New York, NY  10027;     shenkin@columbia.edu;     (212) 854-5143  *

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

From: mouron@ext.jussieu.fr (thymallus)

In my opinion The Stylus Color" (720dpi) from Epson is one of the best
printer for molecular modeling printing, price/quality unbeatable for a
inkjet printer  equivalent to a laser printer !!. The quality is incredible
but there is only one drawback : the Stylus Color is slow.

MOURON LUDOVIC
Laboratoire d'informatique
11, rue Pierre et Marie Curie 
75231 PARIS CEDEX 05
fax 33 1 43 25 79 75 
Tel : 33 1 44 27 67 27 
mouron@ext.jussieu.fr

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

From: "McDaniel, Joe" <JOE@psiint.com>

For $350 the Canon BJC-4000 is great.  For about $530, the EPSON Stylus   
COLOR can do 720 dpi on special paper.  The HP 660C (about the same   
price) is also very good.  After that, I understand the Tektronix printer   
for about $5000 using solid wax is the next step up the scale.  After   
that, figure about $9000+ or so for the high end laser systems  and the   
wide (40") poster makers.

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

From: Jim Gano <JGANO@UOFT02.UTOLEDO.EDU>

    My experience at this point is that the older thermal wax printers
are past technology.  We have one and I do not use it.  For one thing,
the wax can transfer off.  The Kinkgos does a really nice job
but their printer is very expensive.  Dye sublimation seems to be
just coming into its own.  'Very expensive for materials.  

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

From: ross@cgl.ucsf.EDU

You might want to direct your query to Paul Chung at NASA
Ames (pchung@nas.nasa.gov) - this is a site that spends
a fair bit of time on color printer evaluation & selection.
Since they are in aerodynamics, they don't get chemistry
mailings.

Bill Ross

{I did that, however never got a reply.  M.N.]

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

From: Jie Yuan <yuan@nka1.med.uc.edu>

We have had our ESC (Epson Stylus Color) for more than 3 months and
we are very happy with it.  The ESC has 720x720 dpi cmyk ability,
costs $496 at local CompUSA store, can be used on Mac on the
serial line, or PC/SGI/etc on the parallel line.  If you have Irix 
5.x, and the Impressario server software, you can use the ESC
driver written by Paul ??? (forgot his last name) of SGI to handle
many graphic formats, including PS, GIF, TIFF, RGB, and
render in 180, 360 or 720 dpi, mono or cmyk.  The default for SGI
is to use the parallel port, mainly for speed.  Transmitting the 
cmyk data of a full page takes very long time over serial line
(over 0.5 hour)!  There is no ethernet support for this printer,
although there is an option of AppleTalk (~$140), which is still
way too slow.  So far, parallel is the best way to go.  Epson
has announced a release of new driver software for the Macintosh
which may become available in the middle of July 1995.  For SGI
users with Impressario, the ESC drive is available via anon ftp
or WWW, and it is free and supported by the author at SGI.

I have read some postings in the comp.sys.mac.printing group on
the internet that talked about HP 850c, available only in European
countries for now.  I would expect it to arrive in the US market
pretty soon at about $650.  It is a 600x600 dpi printer, and is
supposedly faster than the ESC.  I wish someone would write a 
driver software for this printer for SGI platform.  I am not
sure if HP has a driver for SGI but I doubt very much.

I have seen the print out from HP 650c, 550c, 560c, 1200c.  None
of them is as good as ESC, plus they are not waterproof no matter
how long you have dried them.  ESC print outs are waterproof
after a few hours of drying.

The brightness of the print out on plain paper by the HP printers is 
almost always a bit higher than ESC's.  However, the ESC prints very 
bright figures on transparencies and coated papers, expecially in
720 dpi mode.

HP 1200s/ps is postscript and networkable.  I am not sure if
it can be put on ethernet.  It is a 300x300 dpi printer.  It is
not worth considering if you care about the resolution of the
figures, IMHO.  It is not cheap ($1800?).  Without PS, it costs
more than $1000 and is a waste of money compared with 550c 
($300?), or the like from HP.

In the comp.sys.sgi.* groups, I saw postings of ESC users on, of
course, SGI machines.  Speed was good, thanks to the parallel
ports.  Picture quality was unparalleled by any inkjets, and 
beats many dye/wax sub. printers.

Jie Yuan, PhD - Pharmacology & Cell Biophysics - U. Cincinnati --
Phone: 513-558-2352 -- Fax: x-1169 --  Email: Jie.Yuan@UC.Edu  --
P.O. Box 670575, 231 Bethesda Ave., Cincinnati, OH 45267-0575  --

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

From: Matthew.Harbowy@tjlus.sprint.com

We are very pleased with the results of the Tektronix Phaser II series printers,
however, the cost per page is a little steep.

matt
thomas j lipton

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

From: "Anita Zvaigzne" <ZVAIGZNE@BOB.unt.edu>

      I am not an expert, but I have been looking into color printers 
also.  One of my computer science & engineering friends recommended 
that I look into purchasing a bubble jet color printer; he felt 
that the resolution was far better with the bubble jet printers than 
the other color printers on the market.

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

From: "Dimitris Agrafiotis" <dimitris@3dp.com>

The Tektronix Phaser III color postscript printer produces images of
astonishing quality. Prints are expensive, but you can understand why
when you see them. It does not print on plain paper from what I remember.

Dimitris K. Agrafiotis, PhD             | e-mail: dimitris@3dp.com
3-Dimensional Pharmaceuticals, Inc.     | tel:    (610) 458-6045
665 Stockton Drive, Suite 104           | fax:    (610) 458-8249
Exton, PA 19341

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

From: SATYAM@vms.cis.pitt.edu

We have been using Phaser220i from Tek... for sometime now..
Its gives really good print out..compared to various other
color printers we have used in past..

To hook up thru SGI's you would require Software -Impressario
and the driver for the printer...for a good quality printout..

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

From: Karl.F.Moschner@urlus.sprint.com

We currently use a 4 year old Tektronic Phaser III plain paper printer 
which also supports large format, 11x17, printouts which we find 
particularly handy for "posters".  It also has a low per-print cost and is 
reasonably fast.  The matte finish of the porintout is also appealing but 
give transparancies a washed-out or somewhat muted and muddy apearance, 
e.g., yellow looks like mustard.  You can minimize this shortcoming by 
judiciously selecting your colors or use the optional Tektronix laminator 
which costs about $1000 and gives very nice glassy colors but adds about 
$0.75 to each overhead.  

I have no experience with the latest crop of printers but common 
puiblications such as Byte, PC Magazine and Mac User carry annual reviews 
and ratings.  You can probably, but not positively, use just about any 
color PostScript printer.  But be sure you can return it if it can't be 
used with your workstation.  Dye sublimation printers probably still give 
better results but the new crop of 600x600 color printers are close in 
performance and often faster.

Networked printers on SGI systems  will probably require Impressario for 
which, I beieve, there's an extra charge.  You may be able to use print 
driver supplied with Impressario, such as generic PostScript which doesn't 
support color, or you may have to get an Impressario compatible print 
driver from the printer supplier.  Unlike PC's and Macs, suppliers may 
charge quite a bit extra, as much as $1000, for a UNIX print driver and 
Tektronix does.  We got burned 2 years ago when we updated the SGI O/S 
since the printer software under Irix 4.x no longer worked under Irix 5.x, 
so we had to get both Impressario and the new Tektronix printer software!

Overall, you're best bet is to work with a supplier who has experience with 
your system and configuration.  They should be able to provide examples of 
printed output and transparencies which you can compare for final 
selection.  You may also be able to provide them with your won image, such 
as an SGI Showcase file or snapshot, which they should print out.

Lastly, the size of the files sent to the printer makes a serial printer 
connection impractical.  So make sure you get a printer which supports a 
parallel connection or which can be set up as network addressable, which is 
a bit more complicated.

Comments are those of the author and not Unilever Research U. S.      |
                                                                      |
Karl F. Moschner, Ph. D.                                              | 
                                                                      | 
Unilever Research U. S.      e-mail: Karl.F.Moschner@urlus.sprint.com | 
45 River Road                Phone:  (201) 943-7100 x2629             | 
Edgewater, NJ 07020          FAX:    (201) 943-5653                   | 

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

From: shawn feaster <feaster@tessa.iaf.uiowa.edu>

We have an SG workstation that is connected to an HP1200C color printer
outfitted with 12 MB onboard RAM.  The output is good on plain bond paper,
but the quality is dramatically increased with HP's clay/high quality
paper.  The cost per print on clay paper is ~$1.50 per page.  You can also
print onto HP's transparency media.  The cost of the printer 4 years ago
was ~$1500.00 (which included an academic discount).  Now, I know that you
can get the printer (without the additional RAM) for ~$800.00 at your
local electronics discount shop.  If you want better quality than an
inkjet can produce, then you should look into dye sublimation printers
(prices start ~$8000.00).  The cost per page will run you between $4 and
$5.  If you interested you should contact Tektronixs. 

Shawn Feaster
Image Analysis Facility
Molecular Modeling Consultant
University of Iowa
feaster@tessa.iaf.uiowa.edu

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

From: Pettersson Ingrid <Ingrid.Pettersson@draco.se.astra.com>

We have two differetn color printers. The first one we bought was a 
Textronix Phaser III. This one prints on ordinary paper and overhead.
But you have to laminate the overheads before you use them. We are not
completely happy with this printer. You can see trace from the printer
head and the printer also need some maintanance. The other printer we
have is Kodak ColorEase PS Printer. This printer needs special papers
and overhead films.  But, the result from this printer is very nice.
And so far it has not needed much maintanance.

Ingrid Pettersson
Dep. of Medicinal Chemistry
Astra Draco AB
Sweden

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

From: "Dr. Heinz Poehlmann" <poehlmann@rus.uni-stuttgart.de>

we have made good experiences with Kodak's Color Ease colour printer.
It prints on A4 paper and transparancies, with very high (almost
photorealistic) quality, but is fairly expensive.  Also the prints
are not cheap.  But it's reliable and works fine, even with huge
postscript files.  It is connected to a SGI Indigo and can be used
with the lp (SYS V) and lpr (BSD) printer commands, also from remote
machines.

Dr. Heinz W. Poehlmann                     Regionales Rechenzentrum     |
Manager Applications Department            der Universitaet Stuttgart   |
Computational Chemistry Support            (University Computer Center) |
phone:   (49)-711-685-5992                 Allmandring 30               |
fax:     (49)-711-6787626                  D-70550 Stuttgart            |
e-mail:  poehlmann@rus.uni-stuttgart.de    Germany                      |

======================================================================

------------------------------------------------------------------------
 Marc C. Nicklaus                        Lab. of Medicinal Chemistry
 e-mail: mn1@helix.nih.gov               National Cancer Institute, NIH
 Phone:  (301) 402-3111                  Bldg 37, Rm 5B29
 Fax:    (301) 496-5839                  BETHESDA, MD 20892-4255
------------------------------------------------------------------------


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Date: Tue,  4 Jul 95 09:06:35 +0530
From: Mrigank <mrigank@imtech.ernet.in>
To: chemistry@ccl.net
Subject: RE: CCL:corticosteron and hydrocortisone
X-Vms-Mail-To: UUCP%"itsigeln@chem.UCSD.EDU"


==>I try to find the structures of corticosteron and hydrocortisone (cortisol).
==>Most databases available to me did not have them. Can you give some ideas
==>where these structures could be find?
==>------------------------------------------------
==>IGOR TSIGELNY Ph.D.
==>itsigeln@ucsd.edu
   

   There is an Atals of Steroid Structure by W.L. Duax et al., I do
   not rembemer the publisher., It contains everything including
   chemical strutcure, crystallographic coordinates etc. 

   Hope this helps.

Mrigank
----
/Mrigank                             \/ Phone  +91 172 690557               \
\Institute of Microbial Technology   /\ Email:  mrigank@imtech.ernet.in     /
/Sector 39A,                         \/ FAX: +91 172 690585                 \
\Chandigarh 160 014 India.           /\                                     /
 \//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//\//  
-- When I feed the poor, they call me saint. When I ask why the poors do
   not have food, they call me communist - Archbishop Camaran


From owner-chemistry@ccl.net  Thu Jul  6 13:06:46 1995
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From: brock@chemie.uni-hamburg.de (Mathias Brock)
Message-Id: <9507061627.AA24887@ocserv.chemie.uni-hamburg.de>
Subject: CASSCF in G92
To: chemistry@ccl.net
Date: Thu, 6 Jul 1995 18:27:14 +0200 (DFT)
Cc: brock@chemie.uni-hamburg.de (Mathias Brock)
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Dear netters,

I tried to get result from CASSCF within G92 with as much as 7 electrons
and/or 7 cas-orbitals, but failure by 'orbital rotation by more than
45 degree - possibly wrong orbitals' although the chosen PI-space looked
pretty well. (single point worked but no optimisation)
At this point of calculation sometimes high coefficients of PT correction
are given.

Any suggestions from anyone who worked with CAS ?

Answer will be summarized to net.

Mathias Brock


From owner-chemistry@ccl.net  Thu Jul  6 13:06:49 1995
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Date: Thu, 6 Jul 1995 18:52:21 +0200 (GMT+0200)
From: Craig Taverner <craig@hobbes.gh.wits.ac.za>
To: "Hr Dr. S. Shapiro" <toukie@zui.unizh.ch>
cc: chemistry@ccl.net
Subject: Re: CCL:BABEL for Linux
In-Reply-To: <51802.toukie@zui.unizh.ch>
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On Thu, 6 Jul 1995, Hr Dr. S. Shapiro wrote:
> Dear Colleagues;
> 
>      Does anyone know if the format conversion programme BABEL has been com-
> piled for execution under Linux?  If so, kindly send details.

Yes it has.  I've been using it successfully for a while.  Here's an 
extract from the README.BABEL:

--------------------------------------------------------------------------
BABEL is a program designed to interconvert a number of file formats
currently used in molecular moldeling.  The program is available for
Unix (AIX, Ultrix, Sun-OS, Convex, SGI, Cray, Linux), MS-DOS, and on 
Macs running at least System 7.0.

...etc... stuff cut out ...

INSTALLATION OVERVIEW
Babel is avialiable via annonymous ftp from 
joplin.biosci.arizona.edu in pub/Babel

UNIX

The Unix version is in the file babel-1.04.tar.Z

1. uncompress babel-1.04.tar.Z
2. tar -xvf babel-1.04.tar 
3. follow the instructions in README.1ST

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

Cheers, Craig

"If God had meant us to be naked, we would have been born that way."

Craig Taverner
Structural Chemistry, University of the Witwatersrand, South Africa

From owner-chemistry@ccl.net  Thu Jul  6 13:36:54 1995
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Date: Thu, 6 Jul 1995 18:27:06 +0100 (BST)
From: A J Turner <chpajt@bath.ac.uk>
To: chemistry@ccl.net
Subject: X11 over a modem
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Hi there!

Thank-you for your enthusiastic responces to my request for help.  I feal 
that I have not explained my self we enough - from some of the responces.

I have already used X11 over Ethernet, using PC-nfs.  Also, once it runs 
over ethernet, packets can be diverted through verious routers so that 
X11 can be run over the internet. 

My idea is to run X11 via a modem, over the internet.  Thus, I require a 
way of getting my X11 software to communicate with a TCP/IP socket 
coming from SLIP/PPP on a modem.

At present, my software is Trumpet Winsock - to give the windows socket - 
and ExceedW to give the X11 libuary routines and window manager required 
to use X11. 

I do not, however, have the faintest idea how to get ExceedW to use a 
transport which will talk to my Windows socket - or even if such a thing 
is possible.

From some of the responces, clearly modem use of X11 is possible with 
Linuxs and with Trumpet Winsoc, but using other X11 libuaries than ExceedW.  
Thus, I feel that we are getting close!!

Should a solution to this problem be found, I shall be putting the 
results on the WEBB.

Thank-you for all your help - please don't stop.

Kind regards to you all

Alex


+--------------------------------------------------+
|Alternate E-mail A.J.Turner@Bath.ac.uk            |
|www home @ http://www.bath.ac.uk/~chpajt/home.html|
+--------------------------------------------------+ 


From owner-chemistry@ccl.net  Thu Jul  6 13:46:46 1995
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Date: Thu, 6 Jul 1995 19:17:59 +0200 (GMT+0200)
From: Craig Taverner <craig@hobbes.gh.wits.ac.za>
To: "M. Nicklaus" <mn1@helix.nih.gov>
cc: CHEMISTRY@ccl.net
Subject: Re: CCL:SUMMARY: Color Printers
In-Reply-To: <9507061537.AA07640@helix.nih.gov>
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On Thu, 6 Jul 1995, M. Nicklaus wrote:

> Dear CCL'ers,
> 
> This is the summary of the responses I received to my question
> on color printers I asked a few weeks ago.  My question as well
> as the answers have been slightly edited for the sake of brevity.
> 
> I had hoped to receive experience reports on some of the newer
> high-end printers such as the Apple Color LaserWriter 12/600 PS,
> DEC Colorwriter 1000, Fargo Primera Pro, HP Color LaserJet,
> QMS magicolor LX, Seiko Professional ColorPoint 2 PSF, the
> Tektronix Phaser models 240, 340, 440, 480, 540, and others; but
> presumably these are just too new to have been purchased by 
> many groups as of now.

I hope I'm not too late to comment:

We've just bought a tektronix 220e (must the same thing as the 240), but 
did quite a bit of looking around before buying and the impressions I got 
of some of the others were:
 - the non-postscript inkjets are producing some stunning quality stuff 
(epson stylus, hp850c, etc.) but are extremely slow, and require special 
drivers (a bit inconvenient under unix - linux in my case), not being 
postscript.
 - the dye sublimation printers give unbelievable quality output, but the 
price per print is exhorbitant, although some printers are not all that 
expensive to buy (Fargo Primera, NEC ???).  The price per page put us 
off, as well as the need for specialized drivers for the cheaper printers.
 - thermal wax.  The print quality is pretty good, and the price per page 
is not bad (compared to dye sub.) running at ~$1.  Print speed for normal 
postscript jobs can be reasonable (tektronix 220e runs at up to 2 ppm), 
but some complex jobs can take much longer (I had one take over half an 
hour).  Pretty reasonable all round.  Price per page is not dependant on 
amount of colour or ink used, so it's best for pages with a lot of colour.
 - solid ink.  Better quality than thermal wax, but equivalently more 
expensive.
 - colour lasers.  The quality of the cheaper versions didn't seem any 
better that thermal wax, although the more expensive ones certainly were 
a lot better.  We were put off by the price.

So at the end of the day we got a tektronix thermal wax, and so far it's 
done things to both delight and disappoint us.  The high res mode gives 
excellent print quality, and we've been able to print from both windows 
and unix through the network and parallel port.

Cheers, Craig

Craig Taverner
Structural Chemistry, University of the Witwatersrand, South Africa

From owner-chemistry@ccl.net  Thu Jul  6 13:51:50 1995
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Date: Thu, 6 Jul 1995 18:37:32 +0100 (BST)
From: A J Turner <chpajt@bath.ac.uk>
To: chemistry@ccl.net
Subject: TCL/TK
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Hi!

I have just been using TCL to do some chemistry workand this has set me 
thinking about the subject.

The rate at which fairly powerfull routines can be built up, coupled with 
the cross platform nature of TCL, make TCL or TCL like languages the thing of 
the future.  

For a lot of the work we all do, the limiting factor is not 
the time it takes the computer to do calcualtions, but the time it takes 
to get software to run, or generate input decks for existing software.  
TCL/TK is excellent at helping in these areas.

From this I would conclude that:- Use of TCL/TK must become more widly 
accepted, and the creatation of a central server is a good idea.  
However, TCL/TK will get a badd name if people start saying it can do 
things that it cannot - IE perform quickly or replace C/FORTRAN programing.


Well, I though I better do something other than just ask questions!!

Love and cuddles to all

Alex

+--------------------------------------------------+
|Alternate E-mail A.J.Turner@Bath.ac.uk            |
|www home @ http://www.bath.ac.uk/~chpajt/home.html|
+--------------------------------------------------+ 


From owner-chemistry@ccl.net  Thu Jul  6 14:51:48 1995
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From: Kay Kreidler <kreidler@hp817s.rz.uni-duesseldorf.de>
Subject: distribution of rotameric species
To: chemistry@ccl.net (Theochem Liste)
Date: Thu, 6 Jul 95 20:39:34 MESZ
Mailer: Elm [revision: 70.85.2.1]


Dear netters!

Almost one and a half year ago I asked a question concerning the
rotational barrier of molecules. For better reference and comprehension, I
will repeat my original question:

----------------------------------------------------------------------
I have a question about the thermal energy, concerning rotational
barriers. How can you calculate this energy in dependence of the absolute
temperature? Some people told me it must be E = 3/2 * RT for a non-linear
molecule, but this doesn't fit to experimental data (Ethane has a
rotational barrier of approx. 3 kcal/mol and 3/2 * RT would be only 0.89
kcal/mol for T=298K). Any suggestions?
----------------------------------------------------------------------

I received a number of interesting answers and posted them to this mailing
list. Although I still was not very happy with the result of this, because
it did not make things clear. Today I found something in a textbook about
physical chemistry (W.J. Moore and D. Hummel, "Physikalische Chemie",
Walter de Gruyter Berlin, New York, 1983).

They wrote, that in some molecules like ethene or ethane, internal degrees
of freedom cannot be divided in vibrations and rotations. In the case of
ethane, a degree of freedom for the vibrations gets lost, therefor you
have an additional one for the internal rotation around the C-C single bond.

When the barrier of rotation exceeds RT (= approx. 2.5 kJ/mol = 0.59
kcal/mol) it must be treated as a hindered rotation. For this case there
is no easy formula available for the "Zustandssumme" (sum of states in
English ?). You can calculate the amount of the rotational barrier from 
U = 0.5 * U(max) * (1 - cos(gamma*phi)) with phi being the rotational angle,
gamma a structural factor depending on the symmetry ("Zaehligkeit") of the
rotational axis. U(max) has to be calculated with quantum mechanical
methods for each case or sometimes can be obtained by microwave
spectroscopy, where the rotational transitions are split due to this
internal rotation. For further investigations the authors recommend two
historical papers:

E.B. Wilson, Science 162 (1968) p.59 and
R.M. Pitzer, J. Chem. Phys. 39 (1963) p.1995

My problem is, that now I know that there is no easy way of calculating this
barrier of rotation but once one has done it (with quantum mechanical 
calculations) one still has no knowledge, if the rotation can proceed in
dependence of the temperature.

Comments on my explanations are highly welcomed. When I find more about 
this topic, I will let you know.

Sincerely

Kay Kreidler

------------------------------------------------------
Kay Kreidler
Institut fuer Anorganische Chemie und Strukturchemie I
Heinrich-Heine-Universitaet Duesseldorf
Universitaetsstr. 1
40225 Duesseldorf - Deutschland
e-mail: kreidler@uni-duesseldorf.de
------------------------------------------------------

From owner-chemistry@ccl.net  Thu Jul  6 15:21:48 1995
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From: eofstead@goodyear.com (Eilert Ofstead)
Subject: verification of agostic interactions
Cc: eofstead@goodyear.com


Dear CCL netters,

Are there criteria which define/verify the presence of an agostic H---metal
interaction?

I am mainly interested in organometallics where the H is not on C-alpha.

Any pointers to references would be appreciated, as well as your comments.

Will summarize if enough comments.

thanks in advance,

   Eilert Ofstead

-


---------------------------------------------------------------------
  Eilert Ofstead, Sr R&D Assoc         Research Division
  e-mail: eofstead@goodyear.com        The Goodyear Tire & Rubber Co
  voice:   216-796-3983                142 Goodyear Blvd
  fax:     216-796-3304                Akron, OH  44305     USA
_____________________________________________________________________



From owner-chemistry@ccl.net  Thu Jul  6 15:31:25 1995
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Date: Thu, 6 Jul 1995 14:48:47 -0400
From: hinsenk@ERE.UMontreal.CA (Hinsen Konrad)
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To: chpajt@bath.ac.uk
CC: chemistry@ccl.net
In-reply-to: <Pine.SOL.3.91.950706183041.12153D-100000@mary.bath.ac.uk> (message from A J Turner on Thu, 6 Jul 1995 18:37:32 +0100 (BST))
Subject: Re: CCL:TCL/TK



   The rate at which fairly powerfull routines can be built up, coupled with 
   the cross platform nature of TCL, make TCL or TCL like languages the thing of 
   the future.  

Similar languages have been available for decades. They have just been
ignored or not taken seriously.

   For a lot of the work we all do, the limiting factor is not 
   the time it takes the computer to do calcualtions, but the time it takes 
   to get software to run, or generate input decks for existing software.  

Very true. And yet many people are so obsessed with "efficiency" (being
defined by CPU time only) that they use Fortran or C for one-time jobs
that run for a few seconds.

   From this I would conclude that:- Use of TCL/TK must become more widly 
   accepted, and the creatation of a central server is a good idea.  

My conclusion is a bit different. I don't want to deny the
good points of Tcl/Tk, as a scripting language with good
GUI support, but for many tasks other languages are more
suitable. For scientists especially, I recommend the
following ones:

  APL 
  J
  Mathematica
  Matlab

J version 1 is free, and there is a free Matlab-Clone called
Octave. So it costs nothing to have a look at these. Personally I have
been using APL for many years until I had to give it up because I had
no implementation I could use; APL implementations can be quite
expensive for workstations. I miss it a lot, especially when I have to
waste hours on a trivial job that would be a one-liner in APL. Now I
am using Matlab because I happen to have it, but it is nowhere nearly
as flexible as APL, although it is more suitable for such things as
signal processing. J is similar to APL in many respects, but uses
plain ASCII characters, which makes it easier to implement on a
variety of machines. Its documentation unfortunately is more of a
puzzle than a reference, at least the last time I looked at it.

Scripting and rapid-prototyping for more general applications are

  the Unix shells (sh, csh)
  Perl
  Python
  Tcl

and many less widespread ones. The shells are on every Unix box,
and Perl, Python and Tcl are free. My personal favourite is
Python, but many people prefer Perl.

-------------------------------------------------------------------------------
Konrad Hinsen                     | E-Mail: hinsenk@ere.umontreal.ca
Departement de chimie             | Tel.: +1-514-343-6111 ext. 3953
Universite de Montreal            | Fax:  +1-514-343-7586
C.P. 6128, succ. A                | Deutsch/Esperanto/English/Nederlands/
Montreal (QC) H3C 3J7             | Francais (phase experimentale)
-------------------------------------------------------------------------------

From owner-chemistry@ccl.net  Thu Jul  6 15:36:52 1995
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Date: Thu, 6 Jul 1995 20:34:03 +0100 (BST)
From: A J Turner <chpajt@bath.ac.uk>
To: Hinsen Konrad <hinsenk@ere.umontreal.ca>
cc: chemistry@ccl.net
Subject: Re: CCL:TCL/TK
In-Reply-To: <199507061848.OAA15235@cyclone.ERE.UMontreal.CA>
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Hi!

I would agree that there are,and have been may other quick and easy 
programing langusges.  I am not familiar with most of those which you 
have mentioned - more shame on me.

There is, I understand, one majour difference between TCL (and therefore 
TK) and Perl.  This difference being extensibility.  I have written 
several C routines ( for rotations verctor manipulations etc) that I now 
use regularly withing my TCL implementation.  Further, there are being 
develope chemistry orientated versions of TCL using its powerfull 
extsibility.

The ability to write new routines for TCL makes it posible to see it as an 
extention to C or object orientated C based programing languages, rather 
than a language all by its self.  Seen in this light, it is posibly a 
different beast to other scripting languages and should be treated accordingly.

Mind you lets not take the thing too seriuosly, more than likely, it will 
all be out of date in 5 years time!!!!!

Best to all
 

Alex


+--------------------------------------------------+
|Alternate E-mail A.J.Turner@Bath.ac.uk            |
|www home @ http://www.bath.ac.uk/~chpajt/home.html|
+--------------------------------------------------+ 


From owner-chemistry@ccl.net  Thu Jul  6 15:45:34 1995
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Date: Thu, 06 Jul 1995 14:32:27 +0100
To: A J Turner <chpajt@bath.ac.uk>, chemistry@ccl.net
From: epw@ppco.com (Dr. Eric P. Wallis)
Subject: Re: CCL:X11 over a modem


I run X11 (using ExceedW) using Trumpet Winsock from home over a modem and
it works very well (although, on big graphics files, it get a little slow).
All I do is start the winsock and dial into my SLIP connection.  Once the
slip connection is running, I start ExceedW and it runs fine.  I set up my
ExceedW session and required that either the RSH (or REXEC) be the preferred
communication pipeline (I can't remember since I am at the office).  Also,
you have to set the display variable to your pc at the modem.  This can be
done by setting the display to the SLIP IP address.
If you need furthur help, let me know (my email address is listed below).

Eric
>Hi there!
>
>Thank-you for your enthusiastic responces to my request for help.  I feal 
>that I have not explained my self we enough - from some of the responces.
>
>I have already used X11 over Ethernet, using PC-nfs.  Also, once it runs 
>over ethernet, packets can be diverted through verious routers so that 
>X11 can be run over the internet. 
>
>My idea is to run X11 via a modem, over the internet.  Thus, I require a 
>way of getting my X11 software to communicate with a TCP/IP socket 
>coming from SLIP/PPP on a modem.
>
>At present, my software is Trumpet Winsock - to give the windows socket - 
>and ExceedW to give the X11 libuary routines and window manager required 
>to use X11. 
>
>I do not, however, have the faintest idea how to get ExceedW to use a 
>transport which will talk to my Windows socket - or even if such a thing 
>is possible.
>
>>From some of the responces, clearly modem use of X11 is possible with 
>Linuxs and with Trumpet Winsoc, but using other X11 libuaries than ExceedW.  
>Thus, I feel that we are getting close!!
>
>Should a solution to this problem be found, I shall be putting the 
>results on the WEBB.
>
>Thank-you for all your help - please don't stop.
>
>Kind regards to you all
>
>Alex
>
>
>+--------------------------------------------------+
>|Alternate E-mail A.J.Turner@Bath.ac.uk            |
>|www home @ http://www.bath.ac.uk/~chpajt/home.html|
>+--------------------------------------------------+ 
>
>
>-------This is added Automatically by the Software--------
>-- Original Sender Envelope Address: owner-chemistry@ccl.net
>-- Original Sender From: Address: chpajt@bath.ac.uk
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>


***************************************************************
* Eric P. Wallis, Ph.D                                        *
* Computational Chemistry                                     *
* Phillips Petroleum Company       Office  (918)-661-7956     *
* 331A PL PRC                      FAX:    (918) 662-1097     *
* Bartlesville, OK 74004           email:   epw@ppco.com      *
***************************************************************


From owner-chemistry@ccl.net  Thu Jul  6 15:51:50 1995
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From: hinsenk@ERE.UMontreal.CA (Hinsen Konrad)
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To: chpajt@bath.ac.uk
CC: chemistry@ccl.net
In-reply-to: <Pine.SOL.3.91.950706202345.12153F-100000@mary.bath.ac.uk> (message from A J Turner on Thu, 6 Jul 1995 20:34:03 +0100 (BST))
Subject: Re: CCL:TCL/TK



   There is, I understand, one majour difference between TCL (and therefore 
   TK) and Perl.  This difference being extensibility.  I have written 
   several C routines ( for rotations verctor manipulations etc) that I now 
   use regularly withing my TCL implementation.  Further, there are being 
   develope chemistry orientated versions of TCL using its powerfull 
   extsibility.

That is not such a fundamental difference. Extensibility (with low-level
code) is not a feature of a language, but of an implementation. You
can extend all languages whose interpreters/compilers you get as
source code.

Much more interesting are languages that are extensible by design,
without requiring access to the interpreter/compiler. In a sense,
functions and subroutines are a kind of extensions, but most
classical languages don't allow you to define new operators
or new data types with associated operations. That is one of the
chief advantages of object-oriented languages, and it should not
be underestimated. And that is exactly why I like Python: it is
an object-oriented scripting language. Another incredibly powerful
language is Smalltalk, but it is less interesting for scientific
use.

   Mind you lets not take the thing too seriuosly, more than likely, it will 
   all be out of date in 5 years time!!!!!

Probably. Nevertheless, they will still be used. Fortran has been out
of date for decades and is still the most widely used language
in science!

-------------------------------------------------------------------------------
Konrad Hinsen                     | E-Mail: hinsenk@ere.umontreal.ca
Departement de chimie             | Tel.: +1-514-343-6111 ext. 3953
Universite de Montreal            | Fax:  +1-514-343-7586
C.P. 6128, succ. A                | Deutsch/Esperanto/English/Nederlands/
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From owner-chemistry@ccl.net  Thu Jul  6 16:06:59 1995
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Subject: TCL/TK
To: chemistry@ccl.net (CCL)
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Didn't someone (Dimitris Agrafiotis) offer to collect TCL/TK programs?
I agree that TCL/TK is very powerful, in spite of its slow speed.
I am willing to collect TCL/TK programs for chemistry and maintain
an index of programs I have collected.  I could make the index and
the programs available through CCL.  I have NOT discussed this
with the authorities at CCL.  I am just offering.
What do you all think?
Who else likes and uses TCL/TK?

TJ O'Donnell
tj@eecs.uic.edu
http://www.eecs.uic.edu


> For a lot of the work we all do, the limiting factor is not 
> the time it takes the computer to do calcualtions, but the time it takes 
> to get software to run, or generate input decks for existing software.  
> TCL/TK is excellent at helping in these areas.
> 
> >From this I would conclude that:- Use of TCL/TK must become more widly 
> accepted, and the creatation of a central server is a good idea.  
> However, TCL/TK will get a badd name if people start saying it can do 
> things that it cannot - IE perform quickly or replace C/FORTRAN programing.
> 
> 
> Well, I though I better do something other than just ask questions!!
> 
> Love and cuddles to all
> 
> Alex
> 

From owner-chemistry@ccl.net  Thu Jul  6 16:36:51 1995
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From: A J Turner <chpajt@bath.ac.uk>
To: "Dr. Eric P. Wallis" <epw@ppco.com>
cc: chemistry@ccl.net
Subject: Re: CCL:X11 over a modem
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Hi!

Thanks for your help.  I will start on that, probably at the weekend, and 
let you know how I get on.

All the best 

Alex

+--------------------------------------------------+
|Alternate E-mail A.J.Turner@Bath.ac.uk            |
|www home @ http://www.bath.ac.uk/~chpajt/home.html|
+--------------------------------------------------+ 


From owner-chemistry@ccl.net  Thu Jul  6 16:51:48 1995
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From: A J Turner <chpajt@bath.ac.uk>
To: Hinsen Konrad <hinsenk@ere.umontreal.ca>
cc: chemistry@ccl.net
Subject: Re: CCL:TCL/TK
In-Reply-To: <199507061950.PAA16187@cyclone.ERE.UMontreal.CA>
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Hello all netters!

If one sends a message to a person on a list and circulates it to the 
list, this means the person gets it twice.

This I have found to be quit disconcerting.  It is almost as if someone 
is trying to ram a point home - which I am sure is not the intent.

Good night!!!

+--------------------------------------------------+
|Alternate E-mail A.J.Turner@Bath.ac.uk            |
|www home @ http://www.bath.ac.uk/~chpajt/home.html|
+--------------------------------------------------+ 


From owner-chemistry@ccl.net  Thu Jul  6 20:06:56 1995
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From: "Osman F. =?ISO-8859-1?Q?G=FCner?=" <OSMAN@mdli.com>
Subject: Free Academic license for ISIS/Draw (Mac) is now available on the Web
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SUBJECT:  ISIS/Draw 1.2.1 for Macintosh is now available for downloading, 
          for academic use and personal use at home.
SENT:     06-JULY-1995

[This announcement is being sent to the following list servers:
	ISISFORUM-L
	CHMINF-L
	CCL
and the sci.chem Newsgroup.  Please excuse any duplicate copies you receive 
as a result.]

On March 31, 1995, we announced the availability of a free license for 
ISIS/Draw 1.2w for Windows for academic use and personal use at home.  This
version of ISIS/Draw was offered in particular as a helper application
for WWW browsers, and in support of the efforts toward a chemical MIME
type.  From the beginning, there have been inquiries about the Macintosh
version.  ISIS/Draw 1.2.1 for Macintosh is now available.  This version
(virtually identical to the version recently shipped to supported 
customers) can be used with Mosaic, Netscape, and other browsers to view
*.mol, *.rxn, *.tgf and *.skc files.

To obtain a copy for yourself, go to MDL's WWW homepage (http://www.mdli.com),
and click on the GIF image announcing the availability of the Mac version.
Follow the directions on the offer page, and you will end up with a "BinHex'ed"
(4.0) copy of the self-extracting archive.  Reconvert the file to the
self-extracting archive and double-click on the resulting file to install
ISIS/Draw 1.2.1 for Macintosh. 

Please note that we now have an ISIS/Draw tutorial available as an Adobe 
Acrobat file.  This file can be used from Adobe's Acrobat (you can get a copy
of Acrobat through our download page) on either Macintosh or Windows.

Sincerely,
-David Hughes

--------------------------------------------------------------------------------
David Hughes
Product Manager, Core Products
ISIS Business Unit
MDL Information Systems, Inc.			phone:	(510) 895-1313, x.1432
14600 Catalina Street				fax:	(510) 483-4738
San Leandro, CA  94577				email:  davidh@mdli.com
--------------------------------------------------------------------------------

From owner-chemistry@ccl.net  Thu Jul  6 21:21:51 1995
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In-Reply-To: hinsenk@ere.umontreal.ca (Hinsen Konrad)
        "CCL:TCL/TK" (Jul  6,  2:48pm)
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On Jul 6,  2:48pm, Hinsen Konrad wrote:
> Subject: CCL:TCL/TK
>
>    The rate at which fairly powerfull routines can be built up, coupled with
>    the cross platform nature of TCL, make TCL or TCL like languages the thing
>    of the future.
>
> Similar languages have been available for decades. They have just been
> ignored or not taken seriously.

Actually, Tcl/Tk is the first example of a language that:
	- is a well thought out programming language
	- supports GUI scripting
	- supports rapid prototyping
	- supports extensiblity well
	- is available for a range of scientifically interesting platforms
	- is free.

Tcl without Tk does not really offer much over perl, or for that matter basic,
but the ability to create a graphical application is new.  Hypercard might be
viewed as a precident, but at the time that Hypercard came out, Macs did not
really have the power to support scientific computing.  Smalltalk with
graphical
extensions is also a precursor, but most non-smalltalk programmers find the
philosophy of smalltalk programming hard to deal with and the commercial
implementations of smalltalk are pricey.  Visual basic might be the closest
alternative, and modern PCs are reasonable performers.

David

-- 
David J. States
Institute for Biomedical Computing / Washington University in St. Louis

