1H-Benzotriazol-3-ium (1H-benzotriazole-κN3)trichloridocobaltate(II) monohydrate: a reformulation

Abstract

The asymmetric unit of the title compound, (C6H6N3)[CoCl3(C6H5N3)]·H2O, contains two crystallographically independent cations, two anions and two water molecules. The structure has been reported previously [Zhang, Li, Wang, Xie, Wang & Shen (2004). Acta Cryst E60, m498–m500] as a neutral cobalt(III) complex accompanied by unprotonated benzotriazole molecules and here has been redetermined as an anionic cobalt(II) complex accompanied by protonated benzotriazole cations. For both complex anions, a tetrahedral CoNCl3 geometry arises. A network of N—H...O, N—H...Cl, O—H...O and O—H...Cl hydrogen bonds helps to establish the packing.