Substituent effects. 14. Anomalous dissociation constants in water??organic solvent mixtures: Benzylammonium ions and related systems

AJ Hoefnagel, RH de Vos…

文献索引：Hoefnagel, A. J.; Vos, R. H. de; Wepster, B. M. Recueil des Travaux Chimiques des Pays-Bas, 1992 , vol. 111, # 1 p. 22 - 28

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被引用次数: 3

摘要

Abstract Thermodynamic dissociation constants in various water-organic solvent mixtures are given for benzylammonium, benzyldialkylammonium, and (2-phenylethyl) ammonium ions. Deviations from the Hammett equation (Eqn. 1) are similar to those observed for carboxylic acids, but of opposite sign. The extended Hammett equation (Eqn. 3), containing the hydrophobic constant, π, yields good correlations. Derived secondary normal sigma ...