On Jul 27, 2006, at 10:16 AM, Rzepa, Henry wrote: > about! Anyone heard of Marcus Martin? He works for Sandia National Labs here. Sandia has been pushing out some very nice open source chemistry codes, including: Towhee PyQuante http://pyquante.sourceforge.net/ Vimes http://vimes.sourceforge.net/ Cheers, -Geoff