From chemistry-request _-at-_)server.ccl.net Fri Nov 9 11:40:48 2001 Received: from wb486.ch.pwr.wroc.pl ([156.17.2.50]) by server.ccl.net (8.11.6/8.11.0) with SMTP id fA9GelB16249 for ; Fri, 9 Nov 2001 11:40:47 -0500 Received: by wb486.ch.pwr.wroc.pl via smail with stdio id for chemistry*- at -*ccl.net; Fri, 9 Nov 2001 16:50:22 +0100 (MET) (Smail-3.2 1996-Jul-4 #16 built 1998-Dec-01) Message-Id: Date: Fri, 9 Nov 2001 16:50:22 +0100 (MET) From: zalesny %-% at %-% wb486.ch.pwr.wroc.pl (Robert Zalesny) To: alec #at# pesto.q1.fcen.uba.ar, chemistry #at# ccl.net Subject: Re: No Subject Given By The Author The method that you wanted to use for geometry optimization is very expensive. My advice is to use IEFPCM instead. It would be better to exlude cavitation and dispersion during geometry optimization (as a matter of fact these two copmponents tend to cancel very often). If you use GAUSSIAN program it can be achieved by the use of NODIS and NOCAV keywords. For optimized geometry you can calculate dG with cav. and disp. Robert Zalesny Quantum Chemistry Group Wroclaw University of Technology