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

• Main Authors: Vitalina M. Nikitina, Oksana V. Nesterova, Roman I. Zubatyuk, Oleg V. Shishkin, Julia A. Rusanova
• Format: Article
• Language: English
• Published: International Union of Crystallography 2011-08-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536811025980

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.