Molecular structure and physicochemical properties of acetone–chloroform mixtures

Abstract

The molecular structure of acetone–chloroform mixtures has been studied. Thermodynamic mixing functions, permittivity, and Rayleigh ratios of isotropic and anisotropic light scattering are considered. A molecular model including the formation of the 1 : 1 and 1 : 2 molecular complexes is substantiated. A set of thermodynamic and structural parameters of the complex formation was obtained. The thermodynamic parameters of complex formation defined by the minimisation procedure for excess Gibbs energy of mixture was applied for calculation of excess enthalpy and entropy as well as dielectric and optical properties of mixtures. For the first time the unified representation and analysis of the thermodynamic, dielectric and optical properties of acetone–chloroform mixtures in terms of generalized quasichemical models on the molecular-structural level was realised.