μ-Cyanido-κ(2) C:N-dicyanido-κ(2) C-bis-(N-ethyl-ethylenedi-amine-κ(2) N,N')copper(II)copper(I).

Peter W R Corfield,Joseph F Michalski

doi:10.1107/s160053681400172x

Abstract

In the title complex, [CuICuII(CN)3(C4H12N2)2], the CuI and CuII ions and a bridging cyanide group lie on a twofold rotation axis. The CuII ion is in a slightly-distorted square-pyramidal coordination environment, with the N atoms of the two symmetry-related N-ethylethylenediamine ligands occupying the basal positions and an N-bonded cyanide group in the apical position. The CuI ion is in a trigonal-planar coordination environment, bonded to the C atom of the bridging cyanide group and to two terminal cyanide groups. In the crystal, N—H⋯N hydrogen bonds involving two of the symmetry-unique N—H groups of the N-ethylethylenediamine ligands and the N atoms of the terminal cyanide ligands link the molecules into strands along [010].

Highlights

CuII ions and a bridging cyanide group lie on a twofold rotation axis
The CuII ion is in a slightly-distorted squarepyramidal coordination environment, with the N atoms of the two symmetry-related N-ethylethylenediamine ligands occupying the basal positions and an N-bonded cyanide group in the apical position
The CuI ion is in a trigonal-planar coordination environment, bonded to the C atom of the bridging cyanide group and to two terminal cyanide groups

Summary

Data collection

CuII ions and a bridging cyanide group lie on a twofold rotation axis. The CuII ion is in a slightly-distorted squarepyramidal coordination environment, with the N atoms of the two symmetry-related N-ethylethylenediamine ligands occupying the basal positions and an N-bonded cyanide group in the apical position. The CuI ion is in a trigonal-planar coordination environment, bonded to the C atom of the bridging cyanide group and to two terminal cyanide groups. N—H N hydrogen bonds involving two of the symmetry-unique N—H groups of the N-ethylethylenediamine ligands and the N atoms of the terminal cyanide ligands link the molecules into strands along [010]. H atoms treated by a mixture of independent and constrained refinement max = 0.22 e Å3

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