Syntheses, Structures, and Fluxional Behavior of Tricarbonylmolybdenum(0) and Trioxomolybdenum(VI) Complexes of Tris(2-pyridylmethyl)amine with One Free Arm

The Mo(0) and Mo(VI) complexes of tris(2-pyridylmethyl)amine (tpa), Mo(CO)3(tpa) and Mo(O)3(tpa)•H2O, were synthesized. Structural analyses revealed tridentate coordination of tpa in both compounds. The fluxional behavior of both species was investigated by variable-temperature 1H NMR spectroscopy.