Organic solvent effect on the solution-solid phase equilibria in the systems CuCl2-L-H2O (L = DMSO, DMF, acetonitrile) at 25°C

L. V. Stepakova, M. Yu Skripkin, V. V. Korneeva, Ya M. Grigoriev, K. A. Burkov

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7 Citations (Scopus)

Abstract

A solution-solid equilibrium in ternary water-organic systems CuCl 2-L-H2O (L = dimethyl sulfoxide, N,N-dimethyl formamide, and acetonitrile) at 25°C was studied. The expansion of crystallization branches of individual solvates CuCl2•xL varies in parallel to the donor power of organic solvents. The existence of the mixed crystal-solvates CuCl2•2H2O•2(CH3)2SO, CuCl2•2H2O•2(CH3)2NCHO, CuCl2•H2O•(CH3)2NCHO, CuCl2•2H2O•CH3CN, and CuCl 2•3H2O•2CH3CN in the studied systems was proved. Various donor power of oxygen-containing solvents determines the composition of the first coordination sphere of the copper ion in the specified compounds: the coordination of the both solvents in the mixed crystal-solvates with DMF and the absence of water in the nearest environment of the copper(II) ions in the CuCl2•2H2O•2(CH3) 2SO compound.

Original languageEnglish
Pages (from-to)1053-1056
Number of pages4
JournalRussian Journal of General Chemistry
Volume79
Issue number6
DOIs
Publication statusPublished - 1 Jun 2009

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Scopus subject areas

  • Chemistry(all)

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