Nitro-syltris(pyridine-2-thiol-ato-κN,S)molybdenum(II) dihydrate.

In the title compound, [Mo(C(5)H(4)NS)(3)(NO)]·2H(2)O, the Mo atom is coordinated by a nitrosyl ligand and three monoanionic N,S-bidentate ligands in a distorted MoN(4)S(3) penta-gonal-bipyramidal mol-ecular geometry. The pyridine N atom of one pyridine-2-thiol-ate (pyt) ligand is coordinated to the Mo atom in the trans position relative to the NO ligand [N(pyt)-Mo-N(NO) = 170.62 (19)°]. The compound has C(s) symmetry, with a mirror plane that includes one pyt ring and the NO group. The S-Mo-N(NO) and N(pyt)-Mo-N(NO) angles [97.24 (12) and 91.87 (8)°, respectively] are large relative to the ideal angles of 90°. In the crystal, the mol-ecules pack in a zigzag arrangement. The cavities between the mol-ecules are occupied by disordered water mol-ecules of crystallization.