Tris(2,2′-bipyridine-κ2 N:N′)cobalt(III) trichloride tetra-hydrate

Abstract

The title compound, [Co(C10H8N2)3]Cl3·4H2O, contains discrete [Co(bpy)3]3+ cations (bpy is 2,2′-bipyridine), Cl- anions and water mol-ecules. The [Co(bpy)3]3+ complex cation exhibits C 2 symmetry with the twofold axis through the central Co atom and bis-ecting one bpy ligand and one of the Cl- anions. The four solvent water mol-ecules and the remaining two Cl- anions lie on a mirror plane. Hydrogen-bond inter-actions define a two-dimensional layer structure parallel to (100), which consists of seven-membered [Cl2(H2O)5], eight-membered [Cl4(H2O)4] and ten-membered [Cl2(H2O)8] rings. © 2008.