A.A.Zharikov, N.V.Shokhirev
Analytical Treatment of The Contact Geminate Charge Recombination In Solutions of An Arbitrary Polarity
Chemical Physics Letters. 186:(2-3) 253-263, 1991.

Abstract:

The case of contact reactions of charged particles is considered. For pairs generated in contact, a closed analytical expression for the geminate recombination is derived. The comparison with numerical solution of the Smoluchowski equation demonstrates high accuracy of the approximation. The transition from the non-exponential quasineutral regime to the exponential one with decreasing solvent polarity is analysed.