Thermochemical Study of Complexation and Solvation in the p-Alanine-Cu(NO_3)_2-Water-Ethanol System: 2. Enthalpies of Solvation of Sodium Alaninate and Copper(II) Nitrate in Mixed Solvents

摘要

The heats of mixing of aqueous copper(II) nitrate and sodium p-alaninate with water-ethanol solvents were measured thermochemically at 298.15 K. The enthalpies of transfer of the Ala~~ alaninate anion and Cu~(2+) ion in binary water-ethanol mixtures were calculated. The effect of the composition of the binary solvent on the enthalpy of formation of [CuAla]~+ and the enthalpies of solvation of the ligand, central ion, and complex ion was studied.