Bis[N-(2-amino­eth­yl)ethane-1,2-diamine-κ(3) N,N′,N′′]copper(II) tris­[diamminetetra­kis­(thio­cyanato-κN)chromate(III)] thio­cyanate dimethyl sulfoxide tetra­deca­solvate monohydrate

The ionic title complex, [Cu(C(4)H(13)N(3))(2)](2)[Cr(NCS)(4)(NH(3))(2)](3)(NCS)·14C(2)H(6)OS·H(2)O, consists of complex [Cu(dien)(2)](2+) cations [dien is N-(2-amino­eth­yl)ethane-1,2-diamine], com­plex [Cr(NCS)(4)(NH(3))(2)](−) anions, an NCS(−) counter-anion and uncoordinated dimethyl sulfoxide (DMSO) and water solvent mol­ecules. One of the Cr atoms lies on an inversion center, while the second Cr atom and the Cu atom lie in general positions. The thio­cyanate counter-anion and water mol­ecule are disordered over two positions close to an inversion center. There are several types of hydrogen-bond inter­actions present in the title compound, which connect the complex cations and anions into bulky [Cu(2)Cr(3)] polynuclear species. The four NH(3) groups of the complex anions and six bridging DMSO O atoms link the three complex anions via hydrogen bonding into the anionic polynuclear species [Cr(NCS)(4)(NH(3))(2)](3)·6DMSO. The last one is connected by four bridging DMSO O atoms with the two complex copper cations through N—H⋯ O hydrogen bonds between the terminal NH(3) groups of the anionic polynuclear species and the NH and NH(2) groups of the dien ligand. One additional DMSO mol­ecule is connected via hydrogen bonding to one of the terminal NH(3) groups of the anionic polynuclear species. Another DMSO mol­ecule is connected via hydrogen bonding to each Cu(dien)(2)](2+) cation.