An unusual heptanuclear Co4Cu3 cluster complex: a copper(III) cluster derivative?
Abstract
The new cluster cation [Co4Cu3(CO)8(Me2PCH2PMe2)4]+ contains a central copper atom bridging two Co2Cu triangles; on the basis of, (i) its approximately square-planar stereochemistry, and (ii) electron counting considerations, it is suggested that the central copper atom has the d8 CuIII electron configuration, which is unique in copper clusters.
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