From cohat182@ms15.hinet.net  Mon May 19 03:43:19 1997
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From: "cohat182" <cohat182@ms15.hinet.net>
To: <chemistry@www.ccl.net>
Subject: Fw: cpu cooler
Date: Sun, 19 May 1996 11:39:08 +0800
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----------
> 寄件者: cohat182 <cohat182@ms15.hinet.net>
> 收件者: 
> 主旨: cpu cooler
> 日期: 1996年5月19日 AM 05:57
> 
> 	Dear Sir,
> 	
> 	We are writing to you with a desire to do business with you.
> 	We are a leading manufacturer of CPU COOLER devices for both desktop
> 	and notebook computers in Taiwan and are enjoying an excellent
reputation
> 	through many years' business experiences.
> 	We own a R&D department with many fully qualified engineers to ensure
> 	our products are of the best quality.
> 	our CPU COOLERS use a special designed aluminum FLOATING
> 	(CORRUGATE) FIN heat sink with light weight & thin construction
> 	which has the highest heat dissipation.
> 	Moreover our TAIL CLIP of the coolers also provide special design that
> 	is very convenient to be setup and taken off within one second.
> 	We are sure that you will be quite satisfied with our services and the
> 	excellent qualities of coolers and prices.
> 	If you are interested in our products, please advise us more details and
> 	inform us your mailing address we will send our catalog to you
immediately
> 	or you can access to internet http://www.yoyee.com/eurotrade then click
on
> 	"search company" and then click on cohat enterprise inc showing in
company
> 	index you will find out our home page, many thanks.
> 	
> 	Yours Truly
> 	
> 	John Chen/sales manager
> 	
> 	Cohat Enterprise Inc.
> 	No. 182 Chung-Shan 2 Rd., Lu-Chou
> 	Hsiang, Taipei Hsien, Taiwan, R.O.C.
> 	Tel:886-2-2830289 Fax:886-2-2826349
> 	E-Mail: cohat182@ms15.hinet.net 

From mn1@helix.nih.gov  Mon May 19 11:43:23 1997
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Date: Mon, 19 May 1997 10:53:04 -0400 (EDT)
From: "M. Nicklaus" <mn1@helix.nih.gov>
Message-Id: <199705191453.KAA08845@helix.nih.gov>
To: CHEMISTRY@www.ccl.net
Subject: SUMMARY: Problem with PES in G94
Cc: mn1@helix.nih.gov


Dear CCL'ers,

A few days ago, I posted the following question regarding a
problem with PES in G94:

Q: I'm having a problem with a (relaxed) Potential Energy Scan (PES)
Q: in Gaussian 94.  I'm trying to scan a torsion through 360 degrees
Q: in 30 degree steps.  After having completed the first four steps
Q: (incl. the initial 0 deg. conformation), G94 crashed when I tried
Q: to start the remainder of the PES from the initial torsion + 120
Q: degrees.


Thanks to all who responded:

Alex MacKerell, alex@mmiris.ab.umd.edu
Wolfgang Roth <rothw@uni-duesseldorf.de>
"Eric V. Patterson" <patter@pollux.chem.umn.edu>
edgardo garcia <garciae@guarany.cpd.unb.br>

The decisive hint came from Doug Fox <gaussian.com!fox@lorentzian.com>:

>    From your description it sounds like you have kept the same
> initial geometry and just advanced the redundant internal 
> description of the scan forward 120 degrees without adjusting
> the other coordinates.  This does cause problems in getting a
> mapping between the initial input and the modified structure.
>   If you have the checkpoint file you should be better off
> with Opt=(RESTART,...) which will pick up the last geometry.
> If you don't have that pluck it from the output and start with
> the correct value for the dihedral.

This (appears to have) worked -- at least, the job has not crashed
up til now.

Thanks again to everyone,

Marc

------------------------------------------------------------------------
 Marc C. Nicklaus                        National Institutes of Health
 E-mail: mn1@helix.nih.gov               Bldg 37, Rm 5B29
 Phone:  (301) 402-3111                  BETHESDA, MD 20892-4255    USA
 Fax:    (301) 496-5839    http://www.nci.nih.gov/intra/lmch/MCNBIO.HTM
    Laboratory of Medicinal Chemistry, National Cancer Institute,  &
  Lab. of Structural Biology, Div. of Computer Research and Technology
------------------------------------------------------------------------


From gerwalin@iris1.chemie.uni-kl.de  Mon May 19 15:43:26 1997
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Date: Mon, 19 May 1997 21:30:51 +0200
From: Elmar Gerwalin <gerwalin@iris1.chemie.uni-kl.de>
Message-Id: <199705191930.VAA24219@iris1.chemie.uni-kl.de>
To: chemistry@www.ccl.net
Subject: G94 - freq job  is too large!


I want to calculate the IR spectra of a molecule C13H13
using B3LYP. Within the basis set I want(!) to use, therefore
nearly 300 basis functions are needed.
The frequency caclulation using RHF/same basis made no problem,
but the DFT-job is too heavy for the computer I have to use.

Now my question: what's the cheapest way to calculate the IR spectra
using G94 ?

(what about the Options freq= (Numerical,NoRaman) ?)

Thanks for any help
BYe
Elmar
----
Elmar Gerwalin,  gerwalin@chemie.uni-kl.de
-----

From netsci@awod.com  Fri May 16 10:43:35 1997
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Date: Fri, 16 May 1997 10:12:35 +0100
To: chemistry@www.ccl.net
From: netsci@awod.com (Network Science)
Subject: May Issue of NetSci




The May issue of NetSci is on-line at:

http://www.netsci.org

Articles include "Recent Applications of Accelerated Structure Analysis
Protocols" by Edward H. Kerns, et al (Bristol-Myers Squibb) and a new
course, "HTML for Beginners".




From tcg@chem.unipune.ernet.in  Mon May 19 09:43:22 1997
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Date: Mon, 19 May 1997 18:53:47 -0500
From: tcg@chem.unipune.ernet.in (Students of Dr. S.R. Gadre)
Message-Id: <199705192353.SAA00483@chem.unipune.ernet.in>
To: CHEMISTRY@www.ccl.net
Subject: van der Waals radius




Dear Sirs : Could someone give us van der Waals radius for
Lithium, Boron , Chlorine, Fluorine and Oxygen atoms? Thanks.
(We do have radii of some elements from this list..we will
check consistency with your values)......Shridhar Gadre


From merkle@parc.xerox.com  Mon May 19 12:39:59 1997
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From: Ralph Merkle <merkle@parc.xerox.com>
To: chemistry@www.ccl.net
Subject: Feynman's 1959 talk on the web
Cc: merkle@parc.xerox.com
Message-Id: <97May19.080901pdt."12177"@manarken.parc.xerox.com>
Date: Mon, 19 May 1997 08:09:01 PDT




"E. Lewars" <elewars@alchemy.chem.utoronto.ca> said:

>  Someone recently asked about nanotechnology --how seriously should we take it?
>  For a paper and some refs see Angewande Chemie, Int. Ed. English,
>  1997, 36(6), 585-587.  The idea of nanotechnology seems to begin, in its
>  popular modern incarnation anyway, with the Nobel-prizewinning physicist
>  Richard Feynman (of quantum electrodynamics and Feynman diagrams) in a
>  lecture around 1960 and his 1961 book (ref 1 in the paper).

Feynman's 1959 talk, published in the February 1960 issue of Caltech's
Engineering and Science, is available on the web at
http://nano.xerox.com/nanotech/feynman.html

In his talk, Feynman said:

  But I am not afraid to consider the final question as to whether,
  ultimately---in the great future---we can arrange the atoms the way
  we want; the very <i>atoms</i>, all the way down!  What would happen if
  we could arrange the atoms one by one the way we want them
  (within reason, of course; you can't put them so that they are
  chemically unstable, for example).

  Up to now, we have been content to dig in the ground to find
  minerals.  We heat them and we do things on a large scale with them,
  and we hope to get a pure substance with just so much impurity, and
  so on.  But we must always accept some atomic arrangement that
  nature gives us.  We haven't got anything, say, with a
  "checkerboard" arrangement, with the impurity atoms exactly
  arranged 1,000 angstroms apart, or in some other particular pattern.

  What could we do with layered structures with just the right
  layers?  What would the properties of materials be if we could really
  arrange the atoms the way we want them?  They would be very
  interesting to investigate theoretically.  I can't see exactly what
  would happen, but I can hardly doubt that when we have some
  <i>control</i> of the arrangement of things on a small scale we will get
  an enormously greater range of possible properties that substances can
  have, and of different things that we can do.


