Abstract
Copper(II) distributions over chloride complexes in various organic solvents were analyzed in terms of a modified matrix model. The equilibrium coordination constants of a first ligand and the corrections for the mutual influence between the ligands during the complexation were calculated. It was demonstrated that displacement of the solvent molecule by a chloride ion from the inner coordination sphere of the Cu(II) ion is always of anticooperative character. In MeCN, addition of a chloride ion to a copper ion follows the simplest additive scheme of coordination of the ligand with equivalent coordination vacancies. Possible reasons for nonadditive complexation in DMF, DMSO, trimethyl phosphate, and propylene carbonate are discussed.
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Original Russian Text © A.G. Kudrev, 2010, published in Koordinatsionnaya Khimiya, 2010, Vol. 36, No. 9, pp. 710–716.
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Kudrev, A.G. Calculation of the equilibrium constants and cooperative parameters of formation of Cu(II) chloride complexes in nonaqueous solvents. Russ J Coord Chem 36, 704–710 (2010). https://doi.org/10.1134/S1070328410090113
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DOI: https://doi.org/10.1134/S1070328410090113