Crystal structures of thiocyanate polyamine copper(II) complexes. Part III. [Di-(2-aminoethyl)amine]di-isothiocyanatocopper(II)

Abstract

Crystals of the title compound are monoclinic, space group P2₁/n with Z= 4 in a unit cell of dimensions a= 11·24(2), b= 14·02(2), c= 7·32(2)Å, β= 97·5(3)°. The structure was solved from diffractometer data by Patterson and Fourier methods and refined by block-diagonal least-squares methods to R 0·053 for 1472 reflections. The co-ordination polyhedron of the copper(II) ion is a tetragonal pyramid with the basal plane occupied by the amine (mean Cu–N 2·02 Å) and thiocyanate nitrogen (Cu–N 1·97 Å) atoms; the apical position is filled by the nitrogen atom of the second thiocyanate (Cu–N 2·26 Å).