{2,6-bis[(4R)-(+)-4-isopropyl-4,5-dihydro-1,3-oxazol-2-yl]pyridine-κ3N}trinitrocobalt(III) monohydrate

In the title compound, [Co(NO2)(3)(C17H25N3O6)] . H2O or [Co-III(NO2)(3)(pybox)] . H2O, where pybox is 2,6-bis[(4R)-(+)4- isopropyl-4,5-dihydro-1,3-oxazol-2-yl] pyridine, the coordination geometry is distorted octahedral. This is the first reported complexation of the pybox molecule to a Co-III atom. The pybox ligand exhibits tridentate coordination to Co-III in a 1: 1 ratio and the nitro anions occupy the remaining meridional positions of the octahedron. Molecules are linked, via solvent water molecules, into O-H...O-N hydrogen-bonded chains.