Raman intensities of sulphur α‐S8

Abstract

On the basis of the available force fields for the S8 ring the vibrational Raman intensities of an α-S8 single crystal and of a randomly oriented polycrystalline sample are interpreted in the frame of the bond polarizability model. The whole set of Raman tensors of the S 8-molecular ring and of the single crystal including relative signs are reported, as well as the polarizability parameters for the S-S bond. These magnitudes and the related Raman scattering coefficients are finally reported in an absolute scale by means of the optical refractivities of the crystal. © 1981 American Institute of Physics.