Protonation of Coordinated N₂ on Tungsten with H₂ Mediated by Sulfido-Bridged Dinuclear Molybdenum Complexes¹

Abstract

Reaction of tungsten dinitrogen complexes [W(N2)2L4] (L = PMe2Ph, PMePh2) and 10 equiv of sulfido-bridges molybdenum complexes [Cp‘Mo(μ2-S2CH2)(μ-S)(μ-SR)MoCp‘]OTf (Cp‘ = η5-C5H5, η5-C5H4Me; R = H, Me; OTf = OSO2CF3) under 1 atm of H2 afforded NH3 in moderate (33−52%) yields based on the tungsten atom.