From owner-chemistry.,at,.ccl.net Thu Jan 19 11:47:01 2006 From: "Roman D. Gorbunov gorbunov]=[theochem.uni-frankfurt.de" To: CCL Subject: CCL:G: Transition Dipole Moment with Gaussian. Message-Id: <-30577-060119104553-19328-TNnFDgQi2k9KpBXwgExo1A|a|server.ccl.net> X-Original-From: "Roman D. Gorbunov" Sent to CCL by: "Roman D. Gorbunov" [gorbunov%theochem.uni-frankfurt.de] Dear All, I would like to calculate transition dipole moment of a molecule with the usage of Gaussian program. If Gaussian calculate normal modes, in the end of the output files one can find something like this: MSD=1.034e-09\RMSF=5.113e-05\Dipole=1.203046,-0.9454618,0.4733203\Dipo leDeriv=0.3104709,0.0526555,-0.0901773,0.0975203,0.3147646,-0.1101542, -0.1478299,-0.0861128,0.4431087,-1.1332275,0.0824717,0.2775604,0.07129 I supposed that numbers coming after DipoleDeriv are derivatives of the dipole moment over normal coordinates (i. e. transition dipole moments). I also supposed that they are given in the initial-orientation frame (just like the dipole moment vector coming right before). However, under this suppositions I cannot get expected results. Does anybody know the exact definition and printing format of the dipole derivatives tensor in Gaussian output files? Or may be where one can read about that? Thank you in advance.