Dynamics of solvation of an ion in a dense dipolar liquid

Abstract

A molecular theory of the dynamics of solvation of an ion in a dense dipolar liquid is presented. The theory is based on an extended hydrodynamic approach that properly includes the interparticle correlations that are present at molecular length scales. The effects of the solvent inertial and viscoelastic responses are also included consistently. Numerical studies reveal rich relaxation behaviour such as short-time oscillations followed by a slow long-time decay. The results are in semi-quantitative agreement with recent computer simulation studies.