Copper(II) complexes of benzimidazole
Abstract
The preparation and spectral and magnetic properties are reported for complexes of the type Cu(benzimidazole)4X2(X = Cl, Br, NO3, ClO4, NCS, and ½SO4). These have tetragonally distorted octahedral structures, and the “inner complex” Cu(C7H5N2)2 contains copper ions in a distorted tetrahedral environment. An unstable acetatocomplex may be of the dimeric type.