Crystal structure of hexa­kis­(dimethyl sulfoxide-κO)cobalt(II) bis­[tri­chlorido­(quinoline-κN)cobaltate(II)]

There are few reports that describe crystal structures of compounds containing cobalt complexed to either dimethyl sulfoxide (Me(2)SO) or quinoline (C(9)H(7)N). The title compound, [Co(C(2)H(6)OS)(6)][CoCl(3)(C(9)H(7)N)](2), is a cobalt salt in which the metal ion is complexed to both Me(2)SO and quinoline. In particular, we observed that anhydrous cobalt(II) chloride reacts with quinoline in Me(2)SO to form a salt that is to be formulated as [Co(II)(Me(2)SO)(6)](2+){[Co(II)Cl(3)quinoline](2) (−)}. The Co(II) atom in the cation portion of this mol­ecule lies on a inversion center and is bound to the O atoms of six Me(2)SO moieties in an octa­hedral configuration, while the Co(II) atom in the anion is attached to three chloride ligands and one quinoline moiety in a tetra­hedral arrangement.