From owner-chemistry-: at :-ccl.net Thu Jan 25 11:20:00 2007 From: "=?ISO-8859-1?Q?=D6d=F6n?= Farkas farkas^_^chem.elte.hu" To: CCL Subject: CCL:G: What to change in gaussian03 to calculate thermochemistry? Message-Id: <-33437-070125111011-5684-E+3cQ6fhyu5EtGHTo3uCfg===server.ccl.net> X-Original-From: =?ISO-8859-1?Q?=D6d=F6n?= Farkas Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Date: Thu, 25 Jan 2007 17:09:22 +0100 Mime-Version: 1.0 Sent to CCL by: =?ISO-8859-1?Q?=D6d=F6n?= Farkas [farkas^chem.elte.hu] Hi Taye (and also Steve), Since the AM1 and UAM1 keywords activate the old code in l402 for wavefunction and gradient calculation SCF keywords won't help. One useful trick is using "UHF Int=AM1" insted of UAM1 which will use the regular SCF code (l502) for the semiempirical calculation. This should help on its own and also, SCF=QC should work is necessary. Best wishes, Odon On Thu, 2007-01-25 at 03:55 -0500, taye beyene demisse sene3095~~yahoo.com wrote: > Sent to CCL by: "taye beyene demisse" [sene3095 ~ yahoo.com] > Sent to CCL by: "Taye Beyene Demisse" [sene3095[a]yahoo.com] > Dear CCL subscribers, I am doing a research on conducting > polymers(Theoretical and experimnetal investigation. While I am calculating the > theormodynamic properties by Gaussian03 package it is reporting error. you > may have used the program ,so please look at my result at the folowing > link, and suggest me some correcting methods.(Copy and paste the link > to view the result) > > http://www.ccl.net/cgi-bin/ccl/day-index.cgi?2007+01+20 > > Thank you, > Taye Beyene(AAU)> > > -- Ödön Farkas Associate professor Deparment of Organic Chemistry and Laboratory of Chemical Informatics, Institute of Chemistry, Eötvös Loránd University, Budapest Address: 1/A Pázmány Péter sétány, H-1117 Budapest, Hungary Phone: +36-1-372-2570 Cell phone: +36-30-255-3111 Fax: +36-1-372-2620 URL: http://organ.elte.hu/farkas