From owner-chemistry@ccl.net Sun Apr 26 13:24:01 2009 From: "Jim Kress ccl_nospam%kressworks.com" To: CCL Subject: CCL: dimensionless normal coordinates Message-Id: <-39168-090426132207-2550-PiUtB0nmu9GwcB6mPcZufw-#-server.ccl.net> X-Original-From: "Jim Kress" Date: Sun, 26 Apr 2009 13:22:03 -0400 Sent to CCL by: "Jim Kress" [ccl_nospam++kressworks.com] Would anyone please point me to a reference (or provide me with a methodology, algorithm, or explanation) on how to calculate dimensionless normal coordinates given that I have the molecular hessian, force constant matrix and the vibrational frequencies for two states of a molecule? Thanks. Jim