Second dielectric and refractivity virial coefficients of the polarizable dipolar hard-sphere fluid

Abstract

The second dielectric and refractivity virial coefficients, B _ε and B _R, are calculated numerically, and essentially exactly, for a fluid of anisotropically polarizable dipolar hard spheres. The influence of polarizability is found to be significant, and substantially greater than predicted by previous perturbational approximations. Our results agree well with the available experimental data for CHF₃. We also evaluate an extension of Wertheim's renormalization theory of polarizable fluids due to Schröer; for CHF₃ at room temperature this recovers about 75% of B _ε.