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

Abstract

There are few reports that describe crystal structures of compounds containing cobalt complexed to either dimethyl sulfoxide (Me2SO) or quinoline (C9H7N). The title compound, [Co(C2H6OS)6][CoCl3(C9H7N)]2, is a cobalt salt in which the metal ion is complexed to both Me2SO and quinoline. In particular, we observed that anhydrous cobalt(II) chloride reacts with quinoline in Me2SO to form a salt that is to be formulated as [CoII(Me2SO)6]2+{[CoIICl3quinoline]2−}. The CoII atom in the cation portion of this molecule lies on a inversion center and is bound to the O atoms of six Me2SO moieties in an octahedral configuration, while the CoII atom in the anion is attached to three chloride ligands and one quinoline moiety in a tetrahedral arrangement.

Keywords

• crystal
• cobalt
• quinoline
• dimethyl sulfoxide