Properties Related to the Ion Solvating Ability

The curves of the polarity and donicity indices as functions of the cosolvent mole fractions are generally nonlinear. The deviations AT in terms of Equation 3.42, where Y represents the Dimroth-Reichardt E/30) and the Kamlet-Taft %, a, and p (see Section 3.3.2), then express the properties of the solvent mixture that depend on the self- and mutual-interactions of its molecules. Expressions similar to (3.43) may then be used to fit the experimental AT values. The coefficients of this expression for j.(30) and x are shown in Table 3.17 and those for p and a are shown in Table 3.18, the values being adapted from data in compilations by Marcus [56, 87], 

TABLE 3.17 Coefficients of Equation 3.43 for the Polarity increments AT= AEj,(30) withy.se. in Kcal-moL (lcal=4.148J) and the Polarity/poIarizabUity Increments AT=Ajc withy s/ .  

No data were found for trifluoroethanol, Y-butyrolactone, N-methylformainide, iV,iV-dimethylacetamide, tetramethylurea, sulfolane, and hexamethyl phosjAoric triamide. 

TABLE 3.18 Coefficients of Equation 3.43 for with they. sh. and the Hydrogen Bond 

No data were found for n-propanol, trifluoroethanol, y-butyrolactone, N-methylformamide, N,V-dimeth-ylacetamide, tetramethylurea, N-methylpyrrolidinone, and sulfolane. 

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