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. 13406-29-6, Name is Tris(4-(trifluoromethyl)phenyl)phosphine, molecular formula is C21H12F9P. In a Article£¬once mentioned of 13406-29-6, Safety of Tris(4-(trifluoromethyl)phenyl)phosphine
Synthesis and 17O NMR spectroscopy of a series of 17O labeled triarylphosphine oxides
A series of nine 17O labeled triarylphosphine oxides [(p-R-C6H4)3PO] was synthesized, 17O NMR spectroscopic studies were carried out (toluene solvent/95 C and CDCl3/60 C) and the spectrum was fit with two Lorentzian peaks. The chemical shifts range from delta 51.8 to 55.7 in toluene and delta 44.8 to 48.9 in CDCl3, while 1JPO varies from 159.6 to 168.6 Hz in toluene. The data were fit to the Taft DSP and Hammett equations and related to other NMR parameters for this system and the analogous lambda5-phosphazenes [(p-R-C6H4)3PNPh]. Using the Taft DSP equation the 17O substituent chemical shifts gave rhoI and rhoR with opposite signs which is different from what is observed with the lambda5-phosphazenes. 1JPO, on the other hand correlates best with the Hammett sigma+p constants. The data are consistent with a triple bond contribution to the PO bonding.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Safety of Tris(4-(trifluoromethyl)phenyl)phosphine. In my other articles, you can also check out more blogs about 13406-29-6
Reference£º
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