Vibrorotational Raman and infrared spectra of polar diatomic molecules in inert solutions. III. Isotropic and anisotropic Raman spectra of HCl in liquid SF6

The isotropic and anisotropic Raman spectra of HCl diluted in liquid SF6 ha ve been analyzed and compared with available experimental data. The theoret ical profiles have been calculated with a non-Markovian spectral theory in which the statistical parameters of the isotropic and the anisotropic inter action were obtained from a microscopic extended cell model for the liquid. Memory and interference effects are qualitatively and quantitatively analy zed in terms of the time scales involved in the Raman spectra. A detailed s tudy of intrabranch, interbranch, and cancellation mixing effects is carrie d out together with the analysis of the contribution of the different relax ation channels. (C) 2000 American Institute of Physics. [S0021-9606(00)5083 4-4].