From owner-chemistry ":at:" ccl.net Mon May 10 11:08:00 2010 From: "Vaibhav Jain vaibhav_pharmacy-.-yahoo.co.in" To: CCL Subject: CCL:G: Help on G03 error: "Incomplete coordinate system" Message-Id: <-41835-100510092930-29578-njH0pmGbMe1Dg9Fnm0v9ww/./server.ccl.net> X-Original-From: "Vaibhav Jain" Date: Mon, 10 May 2010 09:29:29 -0400 Sent to CCL by: "Vaibhav Jain" [vaibhav_pharmacy_+_yahoo.co.in] Dear all, I'm getting a recurrent error during geometry optimization (PM3 level) jobs, using Gaussian G03W. I can't figure out what this error means and couldn't find any helping information on the manuals or the web. So I'm hopping someone from this forum could have any helpful hint. The system I'm studying is composed of tetramer ie. two dimer system stabilized by interaction with HCl. The optimization runs apparently OK for a number of steps, but eventually it stops with the following message Incomplete coordinate system. Try restarting with Geom=Check Guess=Read Opt=(ReadFC,NewRedundant) Incomplete coordinate system. Error termination via Lnk1e in /opt/g03/l103.exe at Mon May 10 14:27:33 2010. Job cpu time: 0 days 0 hours 17 minutes 34.1 seconds. File lengths (MBytes): RWF= 64 Int= 0 D2E= 0 Chk= 47 Scr= 1 r= Pls help me solve this error... Thanks vaibhav