The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.1038-95-5, Name is Tri-p-tolylphosphine, molecular formula is C21H21P. In a Article，once mentioned of 1038-95-5, Recommanded Product: Tri-p-tolylphosphine
The complexes [Rh(CO)LTp?] {Tp? = HBR3, R = 3,5-dimethylpyrazolyl; L = PPh3 2, PCy3 3, L = P(NMe2)3 4, P(C6H4Me-p)3 5 or P(C6H4Me-m)3 6}, prepared from [Rh(CO)2Tp?] 1 and L, and [Rh(PPh3)2L?] [L? = Tp? 8, Tp 9 or B(pz)4 10 {Tp = HB(pz)3, pz = pyrazolyl}] and [Rh(dppe)Tp?] 11, prepared from [{Rh(mu-Cl)(PPh3)2}2] or [{Rh(mu-Cl)(dppe)}2] and KL?, adopt four-co-ordinate kappa2 structures, confirmed in the cases of 2-4, 6 and 8 by X-ray structural studies. By contrast, complex [Rh(CO){P(OPh)3}Tp?] 7 has a distorted five-co-ordinate square pyramidal structure with a long Rh…N contact [2.764(2) A] in the apical site and an essentially planar Rh(CO)PN2 basal plane. Each complex undergoes fluxional processes on the N MR timescale. One-electron oxidation of 1-11 gives the kappa3 rhodium(II) cations 1+-11+; the crystal structures of salts Of 2+ and 8+ confirm stabilisation of the unusual rhodium(II) oxidation state by axial co-ordination of the third pyrazolyl ring as a result of oxidatively induced kappa2-kappa3 isomerisation. These structures and ESR spectroscopy are consistent with a five-co-ordinate square pyramidal geometry with the unpaired electron in a sigma* Rh-Naxial orbital.
The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 1038-95-5 is helpful to your research., COA of Formula: C21H21P
Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate