(N-n-Butyl-pyridine-4-carbothio-amide-κN)chloridobis(dimethyl-glyoximato-κN,N')cobalt(III) hemihydrate.

The title compound, trans-[Co(C(4)H(7)N(2)O(2))(2)Cl(C(10)H(14)N(2)S)]·0.5H(2)O, contains two independent mol-ecules in the asymmetric unit in which the Co(III) ions are coordinated in slightly distorted octa-hedral coordination environments. The bis-chelating glyoximate ligands, which occupy equatorial sites, are linked by interligand O-H⋯O hydrogen bonds. The dihedral angles between the mean planes of the glyoximate ligands in each mol-ecule are 2.07 (8) and 1.60 (1)°. The asymmetric unit contains a solvent water mol-ecule which is disordered over two sites with refined occupancies 0.64 (2) and 0.36 (2).