THE SOLVENT DEPENDENCE OF IONIC PROPERTIES IN SOLUTION IN THE LIMIT OF INFINITE DILUTION

The dependence of the Gibbs solvation energy and limiting ionic conduc tance for simple ions on the solvent nature is discussed for a collect ion of data in 18 polar solvents both protic and aprotic. It is shown that the Gibbs solvation energy depends on the acidity and basicity of the solvent, concepts based on a detailed quantum mechanical descript ion of the solvent molecule and its interaction with ions in its vicin ity. On the other hand, ionic mobility, after correction for solvent v iscosity, depends on the size of the surrounding molecules, and to a l esser extent on their acid-base properties.