Crystal structure of hexa-kis-(dimethyl sulfoxide-κ)cobalt(II) bis-[tri-chlorido-(quinoline-κ)cobaltate(II)].

There are few reports that describe crystal structures of compounds containing cobalt complexed to either dimethyl sulfoxide (MeSO) or quinoline (CHN). The title compound, [Co(CHOS)][CoCl(CHN)], is a cobalt salt in which the metal ion is complexed to both MeSO and quinoline. In particular, we observed that anhydrous cobalt(II) chloride reacts with quinoline in MeSO to form a salt that is to be formulated as [Co(MeSO)]{[CoClquinoline]}. The Co atom in the cation portion of this mol-ecule lies on a inversion center and is bound to the O atoms of six MeSO moieties in an octa-hedral configuration, while the Co atom in the anion is attached to three chloride ligands and one quinoline moiety in a tetra-hedral arrangement.