One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, name: (2,2¡ä-Bipyridine)dichloropalladium(II), such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 14871-92-2, Name is (2,2¡ä-Bipyridine)dichloropalladium(II), molecular formula is C10H8Cl2N2Pd
Rationalizing the formation and versatility of multinuclear metal complexes of bis(1-methyluracil-5-yl)methane as hybrids between classical calix[n]arenes and metallacalixaromatics
Metallacalix[n]arenes are a distinct class of metallacyclic compounds consisting of heteroaromatic rings L and square-planar cis-a2M II entities (M = Pt or Pd; a = NH3 or amine; or a 2 = chelating diamine) instead of methylene bridges as in the classic calix[n]arenes. Here a series of hybrid compounds is described, which simultaneously have bridging -CH2- as well as cis-a2M II units, and uracil containing ligands L. Specifically, L = bis(1-methyluracil-5-yl)methane (1) and in one case a derivative of it, bis(1-methyluracil-5-yl)methylbenzene (2), have been reacted with cis-[a 2M(H2O)2]2+ (with a = NH3 or a2 = 2,2?-bipyridine or bis(pyrazloyl-1-yl)propane) in water and products were isolated. Altogether X-ray crystal structures of eight metallacycles (complexes 3-6, 8-11) of M2L2, M 4L2, and M6L6 stoichiometries have been determined as well as a second modification of 1. In all closed metallacycles the 1-methyluracil entities are deprotonated with metals coordinating via N3 positions, and without exception the uracil rings adopt 1,3-alternate conformations. A special feature of ligand 1 in its twofold deprotonated form is its propensity to bind additional metal ions through its exocyclic oxygen functionalities. While O4 sites appear to be favored as secondary metal binding sites, linkage isomerism and involvement of O2 is likewise possible (compounds 4, 9, 10). On the basis of the X-ray crystal structures, a reaction scheme is proposed which accounts for the different stoichiometries observed.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. name: (2,2¡ä-Bipyridine)dichloropalladium(II), If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 14871-92-2, in my other articles.
Reference£º
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method