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Updated: Aug 9, 2026

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
Published on: December 16, 2013
Crystal structure and thermochemical reactivity of an unusual copper complex that contains copper in four different
Rainer Weiss1, Georg Jansen, Roland Boese
1Inorganic Chemistry, University of Duisburg-Essen, Universitaetsstrasse 5-7, D-45117, Essen, Germany.
Abstract:
According to X-ray single-crystal structure analysis, {[Cu(II)(en)2]2[Cu(I)2(CN)6]}[Cu(II)(en)2]2[Cu(I)(CN)3]2.2H2O contains copper in four different coordination environments: trigonal planar, square planar, square pyramidal and tetrahedral. The different coordination geometries of copper were investigated by quantum chemical calculations of model compounds, thus allowing to tentatively assign the different CN-bands in the IR spectrum. The thermolysis led to sub-microm sized rod-like copper(II) oxide particles.
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