From owner-chemistry@ccl.net Wed Mar 28 04:14:00 2012 From: "makowskm(~)chemia.uj.edu.pl" To: CCL Subject: CCL: Opt with Full point group Symmetry in G09 Message-Id: <-46579-120328035640-30448-/SMjwJ4CcEoJPte3bWUX3Q]*[server.ccl.net> X-Original-From: makowskm!^!chemia.uj.edu.pl Content-Transfer-Encoding: 8bit Content-Type: text/plain;charset=iso-8859-2 Date: Wed, 28 Mar 2012 09:56:31 +0200 MIME-Version: 1.0 Sent to CCL by: makowskm__chemia.uj.edu.pl Enforcing symmetrization of the density matrix should help. It is done by SCF=DSymm. > > Sent to CCL by: "Mr Mi Yang" [agri_chemist\a/yahoo.com] > First of all thanks for replies of Jimenez Vazquez, Cory Pye and others. > Actually, I have used Z-matrix made by molden and it works perfect to > maintain symmetry in G09 only > for small molecules like benzene. But for a Fulleren like molecule to > build Z-matrix manually is almost > impossible. >