Rayleigh light scattering by liquids composed of interacting anisotropic molecules

Abstract

By methods of spherical tensor algebra and applying the dipole-induced dipole (DID) model, a general expression is derived with accuracy to within the second order of statistical perturbation theory for the effective polarizability and Rayleigh-scattered light intensity for liquids composed of unlike anisotropic molecules. The results have permitted the application of a computer simulated binary distribution function to calculate the scattered light intensity. The roles of various contributions to the integral intensity are discussed. Numerical calculations are performed for liquid Br₂ and N₂ pointing to an essential role of angular-radial correlations and cross terms. The general expressions are shown to simplify easily in the particular case of radially but not angularly correlated molecules.