``Structure'' in Liquids and the Relation between the Parameters of the Arrhenius Equation for Reactions in the Condensed Phase

Abstract

On the basis of the liquid state being quasi-crystalline, a modification of the transition state theory leads to a simple equation for the temperature dependence of the fluidity, which involves a characteristic frequency of molecular vibration. The parameters of the fluidity equation are shown to have a linear correlation for certain liquids. The quasi-crystalline picture is then extended to a simple collision theory of uni- and bimolecular reactions in solution, and it is shown that the known correlation of the parameters of the Arrhenius equation arises from the fluidity correlation.