MOLECULAR ANISOTROPY, MUTUAL ORIENTATION OF MOLECULES OF LIQUIDS, ANDLIGHT-SCATTERING OF LIQUID-MIXTURES

The anisotropic component of light scattered by liquids carries inform ation about the anisotropy of the polarizability tenser of the molecul es in the liquid and about the mutual orientation of the neighboring m olecules. These two pieces of information cannot be separated when the scattering measurements are performed on pure liquids. A computationa l procedure is developed that can separate the two effects when the an isotropic scattering is measured as a function of the composition of a two-component liquid. The procedure was tested on the benzene-cyclohe xane system. It was found that benzene molecules in pure benzene are p referentially oriented perpendicularly to each other.