From chemistry-request:~at~:server.ccl.net Mon Aug 9 14:51:55 1999 Received: from si.fi.ameslab.gov (si.fi.ameslab.gov [147.155.20.1]) by server.ccl.net (8.8.7/8.8.7) with ESMTP id OAA03098 for ; Mon, 9 Aug 1999 14:51:55 -0400 Received: (from pradipta _-at-_)localhost) by si.fi.ameslab.gov (AIX4.2/UCB 8.7/8.7) id NAA30188 for chemistry _-at-_)ccl.net; Mon, 9 Aug 1999 13:52:46 -0500 (CDT) From: Pradipta Bandyopadhyay Message-Id: <199908091852.NAA30188 \\at// si.fi.ameslab.gov> Subject: software for preparing input file for large molecule! To: chemistry*- at -*ccl.net (CCL) Date: Mon, 9 Aug 1999 13:52:46 -0500 (CDT) X-Mailer: ELM [version 2.4 PL25] Content-Type: text Dear CCL members, I have a question about the preparation of input file for large molecules. It is hard to use z-matrix input for a large molecule. So I decided to use some drawing software to draw the molecule and then extract the coordinates using 'BABEL'. I have been using ISIS Draw 2.2.1. However, all structures drawn by me are coming as planar i.e. Z-coordinates are all zero. My question is Am I making some mistake or is it intrinsic to ISIS? and is there any other software, which can do the things better? and what is the standard way of generating input file for a large molecule (say, has 100 atoms) i.e. my way is correct or not? Thanks for your help. I will summarize the replies. Pradipta -- ***************************************** * Dr. Pradipta Bandyopadhyay * * AMES LAB * * Department of Chemistry * * Iowa State Unievrsity * * Ames, IA 50011 * * USA * * e-mail: pradipta#* at *#si.fi.ameslab.gov * * Phone : 515-294-4604 (Lab) * * : 515-232-8067 (Residence) * * Fax : 515-294-0105 * * URL: http://www.msg.ameslab.gov/ * * Group/pradipta/index.html * ***************************************** ------------------------------------------------------------------------------ ...FOR AFTERWARDS A MAN FINDS PLEASURE IN HIS PAINS, WHEN HE HAS SUFFERED LONG AND WANDERED FAR. -- HOMER ------------------------------------------------------------------------------