Crystal and molecular structure of di[iodobis-(2,2′-bipyridylamine)copper(II)] iodide perchlorate

Abstract

The crystal and molecular structure of the title compound has been determined by single-crystal X-ray techniques. Crystals are monoclinic, space group P2₁/c with a= 19·21, b= 13·47, c= 19·50 Å, β= 111·88°, and Z= 4. The structure was solved by conventional Patterson and Fourier methods, and block-diagonal least-squares refinement of 3921 observed reflections measured on a diffractometer gave R 0·086. The two symmetry-independent copper(II) moieties in the unit cell adopt essentially identical trigonal bipyramidal geometries with two bidentate ligands and an iodide co-ordinated to each metal ion. The iodide occupies an equatorial position, hence minimizing steric repulsions.