From owner-chemistry@ccl.net Wed Mar 18 07:53:01 2015 From: "Sergio Manzetti sergio.manzetti*outlook.com" To: CCL Subject: CCL: Gaussian Job Message-Id: <-51135-150318075118-28515-760VDPvCrfFAgaJLQTvnFg]-[server.ccl.net> X-Original-From: "Sergio Manzetti" Date: Wed, 18 Mar 2015 07:51:16 -0400 Sent to CCL by: "Sergio Manzetti" [sergio.manzetti__outlook.com] Thanks Brian. At the end of the day, G09 was not able to solve this structure. I am trying GAMESS instead, however I cannot find an equivalent to CASSCF method in the example section of GAMESS US. Can anyone recommend the most accurate method to treat a very small system (Computational time and speed is irrelevant)? Thanks