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

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

Bis[N-(2-aminoethyl)ethane-1,2-diamine-κ3N,N′,N′′]copper(II) tris[diamminetetrakis(thiocyanato-κN)chromate(III)] thiocyanate dimethyl sulfoxide tetradecasolvate monohydrate

The ionic title complex, [Cu(C4H13N3)2]2[Cr(NCS)4(NH3)2]3(NCS)·14C2H6OS·H2O, consists of complex [Cu(dien)2]2+ cations [dien is N-(2-aminoethyl)ethane-1,2-diamine], complex [Cr(NCS)4(NH3)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 [Cu2Cr3] polynuclear species. The four NH3 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(NH3)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 NH3 groups of the anionic polynuclear species and the NH and NH2 groups of the dien ligand. One additional DMSO molecule is connected via hydrogen bonding to one of the terminal NH3 groups of the anionic polynuclear species. Another DMSO molecule is connected via hydrogen bonding to each Cu(dien)2]2+ cation