cis-Dichlorido­tetra­kis­(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 octa­hedron. An isolated Cl⁻ counter-anion and a positionally disordered DMSO mol­ecule [occupancy ratio 0.654 (4):0.346 (4)] are also present. In the structure, the complex cations inter­act with the Cl⁻ counter-anions and the DMSO solvent mol­ecules via weak C—H...Cl and C—H...O inter­actions, forming a three-dimensional network.