20500-64-5

Upstream product

• 13939-06-5 molybdenum hexacarbonyl 

Downstream Products

• 88593-77-5 Mo(CO)3(glyoxalbis(cyclohexylimine))Cl(SnCl₃) 
• 90143-51-4 [MoBr₂(CO)3((C₆H₁₁NCH)2)]⁽¹⁺⁾*Br^(1-)=[MoBr₂(CO)3((C₆H₁₁NCH)2)]Br 
• 90143-50-3 [MoCl(CO)2((C₆H₁₁NCH)2)]2Cl₂ 
• 88593-77-5 {MoCl(SnCl₃)(CO)3(C₆H₁₁NCHCHNC₆H₁₁)} 
• 90143-52-5 MoI₂(CO)3(C₆H₁₁NCHCHNC₆H₁₁) 

Relevant academic research and scientific papers

Ligand dependence of molybdenum-catalyzed alkylations. Molybdenum-isonitrile complexes as a new class of highly reactive alkylation catalysts

A series of molybdenum complexes bearing α-diimine, N,N′-diarylideneethylenediamine, and isonitrile ligands have been prepared and evaluated for their ability to catalyze alkylations by using allyl acetates and especially allyl sulfones. (bpy)Mo(CH3

Photolysis of group 6 metal hexacarbonyl solutions containing diimine ligands. Spectral characterization and reaction kinetics of a photoproduced intermediate, monodentate M(CO)5(diimine)

Electronic absorption spectra have been obtained immediately following the photolysis of M(CO)6 solutions containing diimine ligands (1,10-phenanthroline, 2,2′-bipyridine, 1,4-diazabutadiene, or their derivatives) with the use of a microprocessor-controlled diode-array UV-visible spectrophotometer. The time-dependent spectra illustrate rapid formation of a reaction intermediate that is assigned to be M(CO)5L, where L is a diimine ligand coordinated in a monodentate fashion. Monodentate M(CO)5L subsequently extrudes CO thermally via a first-order kinetic process to form stable M(CO)4L. No discernable M(CO)5L intermediates were observed when L = 1,10-phenanthroline (phen) or a phen derivative consistent with the rigid coplanar nature of these ligands. In contrast, the chelation of M(CO)5L complexes, where L = 2,2′-bipyridine, 1,4-diazabutadiene, or derivatives, proceeds with considerably slower reaction rates. The rate data are interpreted in terms of the stereochemistry of the monodentate intermediate. For a given ligand, the reaction rate decreases in the sequence Mo > Cr > W, analogous to the order of CO release in M(CO)6; this ordering suggests that the predominant barrier to chelation involves breaking of the M-C bond. Derived activation energy parameters indicate that the chelation reaction is enthalpy-controlled. The marked dependence of reaction rate on diimine and resulting negative activation entropy values imply that the chelation mechanism proceeds with a substantial associative component.