Abstract

The effect of a static dielectric medium on the energy levels and charge density of an ion have been determined by modifying the Dirac-Slater code. In this work the reduced form of Slater's exchange potential was used. It has been possible to form stable oxygen and sulfur anions with two negative charges. The effects of the dielectric constant and of the radius of approach of the dielectric medium have been examined. The heat of hydration of Na1+ and Cl1− were calculated with this model to be 102.4 and 42.0 kcal, which is in good agreement with the experimental value for Na+ but less accurate for Cl−.

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