A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 246047-72-3, Name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium, molecular formula is C46H65Cl2N2PRu. In a Article，once mentioned of 246047-72-3, SDS of cas: 246047-72-3
The synthesis and characterization of Ni(II) and Pd(II) alpha-diimine olefin polymerization catalysts bearing a fluorinated cyclophane-based ligand were performed. Fluorine was placed in such a manner as to interact with the metal center from the axial direction. The catalysts were active in the polymerization of ethylene, showing substantial differences in both catalytic behavior and polymer size and structure as compared to their nonfluorinated analogues. Both catalysts afforded polymer of comparatively low branching density and high molecular weight. The Ni(II) catalysts, from precursor [Ni(acetylacetonato)(F-Cyc)]+ salts (F-Cyc = fluorinated cyclophane), exhibited enhanced thermal stability by remaining active after 70 min with little loss in polymerization activity at 105C. The Pd(II) catalysts from salts of [Pd(F-CyC)Me(NCR)]+ (NCR = nitrile) afforded polymer of molecular weights far higher than the nonfluorinated analogue. Additionally, polymerization activity was directly related to ethylene feed pressure for the Pd(II) system, and NMR analysis could not detect the presence of bound olefin, indicating that the polymerization proceeded via different kinetics involving an olefln-free 14- complex as the catalyst resting state. Furthermore, NMR 1H-19F coupling data provide clear evidence that the fluorine atoms were indeed interacting with the metal axial site. The unusual properties of these new complexes are thus attributed to stabilization of the highly reactive 14 e- intermediate by donation of the fluorine lone pair to the metal center.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.SDS of cas: 246047-72-3, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 246047-72-3, in my other articles.
Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI