Crystal structure ofcis-tetraaquadichloridocobalt(II) sulfolane disolvate

Abstract

In the title compound, [CoCl2(H2O)4]·2C4H8SO2, the CoIIcation is located on the twofold rotation axis and is coordinated by four water molecules and two adjacent chloride ligands in a slightly distorted octahedral coordination environment. Thecisoidangles are in the range 83.27 (5)–99.66 (2)°. The threetransoidangles deviate significantly from the ideal linear angle. The crystal packing can be described as a linear arrangement of complex units alongcformed by bifurcated O—H...Cl hydrogen bonds between two water molecules from one complex unit towards one chloride ligand of the neighbouring complex. Two solvent molecules per complex are attached to this infinite chainviaO—H...O hydrogen bonds in which water molecules act as the hydrogen-bond donor and sulfolane O atoms as the hydrogen-bond acceptor sites.