Diaquabis(propane-1,3-diamine)copper(II) bis[diamminetetrakis(thiocyanato-κN)chromate(III)] dimethyl sulfoxide octasolvate

Abstract

The ionic title complex, [Cu(C3H10N2)2(H2O)2][Cr(NCS)4(NH3)2]·8C2H6OS, consists of complex [Cu(dipr)2(H2O)2]2+ copper cations (dipr is propane-1,3-diamine), complex [Cr(NCS)4(NH3)2]− anions and uncoord­inated solvent dimethyl sulfoxide (DMSO) mol­ecules. All the metal atoms lie on crystallographic centers of symmetry. The cations are connected to the anions through N—H⋯O hydrogen bonds between the NH3 mol­ecules of the anion and the water mol­ecules of the cation. The DMSO mol­ecules are involved in hydrogen-bonded linkage of the [Cr(NCS)4(NH3)2]− anions into supra­molecular chains through bridging O atoms. A network of hydrogen bonds as well as short S⋯S contacts [3.5159 (12) and 3.4880 (12) Å] between the NCS groups of the complex anions link the mol­ecules into a three-dimensional supra­molecular network.