
%0 Journal Article
%A Ross, DK 
%A Levine, S 
%T The Interaction Energy of an Ion Pair with Overlapping Hydration Shells. I. A Truncated Spheres Model
%J Australian Journal of Physics
%D 1968/10/01
%V 21
%N 5
%P 571-586
%K 
%R https://doi.org/10.1071/PH680571
%U https://www.publish.csiro.au/paper/PH680571 
%X The energy of interaction of two univalent ions of opposite charge with overlapping hydration shells and in an aqueous medium is discussed in terms of a truncated spherical cavity model. The general trend of the effective dielectric constant considered as a function of the separation between the ion centres is found to be in agreement with some earlier results on a spheroidal cavity model. The present investigation has the advantage that the boundary of the ion pair , varies continuously with separation and hence that no matching of a two· sphere model onto a spherical cavity model is required. It is found that the effective dielectric constant has a maxinum value at very small ion overlap. 
