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Journal of Structural Chemistry

2009 year, number 4

STRUCTURAL THERMODYNAMIC CHARACTERISTICS AND INTERMOLECULAR INTERACTIONS IN AQUEOUS SOLUTIONS OF HEXAMETHYLPHOSPHOROTRIAMIDE

A. M. Zaichikov, M. A. Krest'yaninov
Keywords: internal pressure, intermolecular interactions, structure of aqueous solutions, hexamethylphosphorotriamide, dialkylamides
Pages: 676-684

Abstract

Structural thermodynamic parameters of aqueous solutions of hexamethylphosphorotriamide are calculated. They are discussed together with previously obtained data on aqueous solutions of disubstituted amides of carboxylic acids. The specific and non-specific components of the total energy of intermolecular interactions are determined. The boundaries of concentration regions with different structural organizations of solutions are found, and the preferential solvation parameters of solution components are estimated.