The colour isomerism and structure of some copper co-ordination compounds. Part XII. The crystal structure of NN′-(2,2′-biphenyl)bis(salicylaldiminato)copper(II)

Abstract

A three-dimensional X-ray structural analysis of NN′-(2,2′-biphenyl)bis(salicylaldiminato)copper(II) has revealed a distorted co-ordination geometry. The angles at the 4-covalent copper atom are 88·9, 93·6, 93·6, 96·1, 151·4, and 154·6° and the angle between the two planes containing, respectively, the donor atoms of a salicylaldiminato-residue and the central copper atom is 37°. Both the Cu–O bonds are 1·90 Å in length and the Cu–N bonds are 1·94 and 1·96 Å.