Dinuclear complexes molybdenum

Among the more interesting metal-metal multiple bonded complexes are the hexaalkoxo dinuclear tungsten and molybdenum complexes, fM,(OR),J [Pg.418]

The reactions of dinuclear thioaldehyde and -ketone complexes with PR3 take a different course. When the dimeric complexes 112 are treated with PMe3 a Ti-S bond in 112 is cleaved and the monomeric complexes 113 are reversibly formed (see Scheme 26), 69 The reaction of 112 with benzene-thiol led to a Ti-C cleavage and formation of 1,3-propanedithiolato-(phenylthiolato) complex.69 The reaction of binuclear p-191 rf-thioketone molybdenum complexes related to 115 (M = Mo, E = S, R = Aryl) with P(OEt)3 also gave mononuclear complexes [Mo(CO)2(Et) i72-S = C(Aryl)2 (i75-C5H5)] by a rather complicated reaction sequence. When other phosphites were employed additionally binuclear complexes derived from addition of the phosphite to one molybdenum atom were isolated.225... 

Abdul-Raman, A., Amoroso, A.A., Branston, T.N., Das, A., Mahler, J.P., McCleverty, J.A., Ward, M.D. and Wlodarczyk, A. (1997) Dinuclear molybdenum complexes derived from diphenols Electrochemical interactions and reduced species. Polyhedron, 16, 4353-62. 

Lithium benzenetellurolate or bromomagnesium benzcnetellurolate and cycloheptatrienyl-(dicarbonyl)molybdenum bromide produced the benzenetellurolato-bridged dinuclear molybdenum complex, dicarbonylbis[l-7-r -cycloheptatrienyl -bis[p-benzeneteUurolato] di-molybdenum( II)1. 

Mononuclear vs. Dinuclear Sites. All molybdenum enzymes contain two molybdenum atoms. Dinuclear molybdenum complexes are well... 

Preparation and X-Ray Structure of a Hydrazine-Bridged Dinuclear Molybdenum Complex [Mo(S2CN(C2H5)2)2(CO)2]2N2H4 CH2CI2... 

The reaction of Mo(CO)3(tj6-QH6) and f-BuC P affords the dinuclear molybdenum complex 118, featuring an tj1 i74-triphosphete ring in addition to an T71 T74-l,3-diphosphete ligand, albeit in poor yield see Eq. (26).56d... 

The lanthanide metals, with their larger coordination numbers, invariably have the ligand coordinated in either a trismonodentate or a tetrakismonodentate fashion (42, 55, 57) (see Figs. 10 and 11). Thus, the ligand apparently tends toward the maximization of its coordinating capacity where circumstances allow, giving rise in many cases to the formation of sheet or cage structures. Limited chain formation was observed in the platinum, palladium, and rhodium complexes described, while the molybdenum complexes described by Hilbers et al. consist of dinuclear and tetranuclear units. 

There is very little information concerning one-electron reactions at oxo-molybdenum centers because of the tendency for oxo-molybdenum complexes to form dinuclear systems (37 and 38). To our knowledge, (L-N3)MoO,jX3, j complexes constitute the only family of mononuclear... 

Reviews have appeared of the photophysics of molybdenum complexes, primary and secondary processes in organometallic chemistry, flash photolysis of Pe(CO)5 and Cr(CO)g, dinuclear manganese carbonyl compounds, the photochemistry of metal complexes isolated in low temperature matrices, cluster complexes, diene complexes, photoproduction of coordinativeiy unsaturated species containing rhodium or iridium, and redox chemiluminescence of organometallic compounds.Synthetic and metal organic photochemistry in industry has also been reviewed. 

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