Complex formation in Cu(II)-thioamide-carbonyl compound systems in ethanol solutions

Complex formation in Cu(II)-thioamide-carbonyl compound systems in ethanol solutions The structures of metal complexes formed in systems Cu(II)-thioamide-carbonyl compounds in water-ethanol solutions were studied by spectroscopic and quantum-chemical methods. It was found that in systems containing thiocarbohydrazide, the processes of template synthesis in water-ethanol solution and in gelatin-immobilized matrices differ substantially. In the case of dithiooxamide and dithiomalonamide, no products of template synthesis were detected; these amides give with the Cu2+ ion the chelate complexes with a ratio Cu2+: ligand = 1: 2 and with the N2S2 coordination core for dithiooxamide and S4 coordination core for dithiomalonamide. The quantum-chemical calculations in terms of the density functional theory were shown to adequately describe the structures of metal complexes and relative thermodynamic characteristics of the template synthesis processes in the systems under study. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Coordination Chemistry Springer Journals

Complex formation in Cu(II)-thioamide-carbonyl compound systems in ethanol solutions

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2006 by Pleiades Publishing, Inc.
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry
ISSN
1070-3284
eISSN
1608-3318
D.O.I.
10.1134/S1070328406080094
Publisher site
See Article on Publisher Site

Abstract

The structures of metal complexes formed in systems Cu(II)-thioamide-carbonyl compounds in water-ethanol solutions were studied by spectroscopic and quantum-chemical methods. It was found that in systems containing thiocarbohydrazide, the processes of template synthesis in water-ethanol solution and in gelatin-immobilized matrices differ substantially. In the case of dithiooxamide and dithiomalonamide, no products of template synthesis were detected; these amides give with the Cu2+ ion the chelate complexes with a ratio Cu2+: ligand = 1: 2 and with the N2S2 coordination core for dithiooxamide and S4 coordination core for dithiomalonamide. The quantum-chemical calculations in terms of the density functional theory were shown to adequately describe the structures of metal complexes and relative thermodynamic characteristics of the template synthesis processes in the systems under study.

Journal

Russian Journal of Coordination ChemistrySpringer Journals

Published: Aug 6, 2006

References

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