The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.14162-95-9, Name is 4-Bromo-2,2′-bipyridine, molecular formula is C10H7BrN2, 14162-95-9, In a Article, authors is Tabey, Alexis£¬once mentioned of 14162-95-9
Bipyridyl? and pyridylquinolyl?phenothiazine structures as potential photoactive ligands: Syntheses and complexation to palladium
Three new bipyridyl? and pyridylquinolyl?phenothiazine structures were synthesized through Pd-catalyzed C?N couplings between phenothiazine and the corresponding bromo-heteroaryls. For the 2-(N-phenothiazine)-bipyridine, boat conformation was determined for the phenothiazine moiety by X-ray diffraction analysis. Single well-defined palladium acetate complexes were observed by 1H NMR analysis with the 4-(N-phenothiazine)-bipyridine and the pyridyl-5-(N-phenothiazine)-quinoline. Compared to the naked ligands, the UV?visible absorption spectra showed, in these cases, significantly red shifted lambdamax upon coordination. Preliminary modeling experiments with the free and the coordinated 4-(N-phenothiazine)-bipyridine suggested for both the occurrence of electronic transfers from the phenothiazine to the bipyridine. Potentially enabling the tuning of the electron density of the coordinating moiety upon near-UV irradiation, this bipyridyl?phenothiazine structure could be the origin of a novel class of photo-active ligands for applications in organometallic catalysis.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.14162-95-9. In my other articles, you can also check out more blogs about 14162-95-9
Reference£º
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI