Aquabromidobis(dimethylglyoximato)cobalt(III)

Abstract

In the title complex, [CoBr(C4H7N2O2)2(H2O)], a crystallographic mirror plane bisects the molecule, perpendicular to the glyoximate ligands. The geometry around the cobalt(III) atom is approximately octahedral with the four glyoximate N atoms forming the square base. A bromide ion and the O atom of a water molecule occupy the remaining coordination sites. The N—Co—N bite angles are 82.18 (4) and 80.03 (16)°. The glyoximate moieties form strong intramolecular O—H...O hydrogen bonds. The coordinated water molecule forms an intermolecular O—H...O hydrogen bond with a glyoximate O atom, thereby generating supramolecular chains parallel to [010].