Raman Studies of Molecular Reorientation in Liquid Sulfur Hexafluoride

Abstract

The contour of the v2 Raman band of SF6 liquid has been studied over the temperature range 226–315 K. Reorientational and angular momentum correlation times were obtained by comparing the Fourier transforms of the band contours with the reorientational correlation functions calculated using the J diffusion limit of the extended rotational diffusion model. A reanalysis of Hackleman and Hubbard's nuclear relaxation data for liquid SF6, using the correlation times obtained from the Raman studies, yields the value ± 6.2 × 104 s−1 for the asymmetry in the spin–rotation tensor [Formula: see text] for fluorine nuclei in SF6.