Journal of Chemical Physics, Vol.106, No.17, 6901-6915, 1997
Level-Dependent Damping in Intermolecular Vibrations - Linear Spectroscopy
A treatment of stimulated Raman intermolecular spectroscopy is presented that employs a Landau-Teller model of damping. This model incorporates a quantum-number dependence to population relaxation and pure dephasing, thereby introducing a specific temperature and frequency dependence into the damping in the intermolecular spectrum. Optical-heterodyne detected Raman-induced Kerr effect data obtained in CS2 and acetonitrile over a broad temperature range are shown to agree with the basic predictions of the model.
Keywords:INSTANTANEOUS NORMAL-MODES;OPTICAL-RESPONSE;LIGHT-SCATTERING;LIQUID CS2;DYNAMICS;RELAXATION;QUANTUM;WATER;ACETONITRILE;SIMULATIONS