cis-Dichlorido-tetra-kis-(dimethyl sulfoxide-κO)chromium(III) chloride dimethyl sulfoxide monosolvate.

The structure of the title compound, [CrCl2(C2H6OS)4]Cl·C2H6OS, consists of a Cr(III) ion coordinated by four O atoms of dimethyl sulfoxide (DMSO) ligands and two chloride ions in cis positions, forming a distorted CrCl2O4 octa-hedron. An isolated Cl(-) counter-anion and a positionally disordered DMSO mol-ecule [occupancy ratio 0.654 (4):0.346 (4)] are also present. In the structure, the complex cations inter-act with the Cl(-) counter-anions and the DMSO solvent mol-ecules via weak C-H⋯Cl and C-H⋯O inter-actions, forming a three-dimensional network.