From owner-chemistry@ccl.net Sat Feb 19 20:28:01 2011 From: "Eli Lam elizabeth.shlam!A!gmail.com" To: CCL Subject: CCL: Gaussian03 optimisation problems Message-Id: <-43986-110219202705-2397-ZTFeaxj2ITJ434XfiGOpww~~server.ccl.net> X-Original-From: "Eli Lam" Date: Sat, 19 Feb 2011 20:27:03 -0500 Sent to CCL by: "Eli Lam" [elizabeth.shlam() gmail.com] Hi, Recently when I do optimisation of a organometallic molecules, I've found an imaginary frequency in the optimized structure, I know it would mean that the structure is not a minima in the PES. But how should I optimise again to find the true minimum? Thanks! Eli