Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about is helpful to your research. Product Details of 1271-19-8
A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Product Details of 1271-19-8, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1271-19-8, Name is Titanocenedichloride, molecular formula is C10Cl2Ti. In a Article, authors is Lappert, Michael F.£¬once mentioned of 1271-19-8
Chemistry of o-Xylidene-Metal Complexes. Part 4. Stereospecific Synthesis of the Early Transition Metal meso-Metallacycles (M=Ti,Zr,Hf, or Nb), their Reversible One-electron Reduction (M =Ti,Zr,Hf, or Nb) and Oxidation (M= Nb); and the X-Ray Crystal Structure of the Zn complex.
The reaction of the organodilithium reagent (tmen = Me2NCH2CH2NMe2) and the appropriate metallocene(IV) chloride in OEt2 at ca. 35 deg C yields the corresponding crystalline, thermally stable, stereospecifically pure meso-metallindane ; by-products in two of these reactions are <(Ti(eta-C5H5)2Cl)2> or the binuclear zirconium compound (6) formulated as meso-.Compounds (2)-(5) are sublimable at ca. 140 deg C (10-3 Torr), and on pyrolysis afford o-C6H4(CH2SiMe3)2; they are reasonably air-stable and inert to CO under ambient conditions.Compound (6) is also accessible from (3) in OEt2 and successively Li(tmen)Bun in n-C6H14 and .Assignment of the meso (rather than rac) diastereomeric configuration for complexes (2)-(4) rests on their n.m.r. spectra and for (3) on X-Ray data.E.s.r. data on complex (5), or the Na(C10H8)-tetrahydrofuran reduction products of each of (2)-(4), are consistent with each being a d1 complex.The electrochemical reduction <-E<*>red = 1.46 (Ti), 2.02 (Zr), or 2.26 V (Hf)> of each of the complexes (2)-(4) is pseudo-reversible, but the anions tend to lose C5H6-.The niobium complex (5) undergoes reversible one-electron oxidation (E<*>ox = -0.47 V) or reduction (-E<*>red = 1.63 V).The X-ray structure of the title metallaindane (3) shows pseudo-tetrahedral co-ordination of Zr with a centroid-Zr-centroid’ angle of 125.1 deg and bite angle Calpha-Zr-Calpha’ of 80.2(2) deg, with 2.305(4) and Cbeta,Cbeta’> 2.71(1) Angstroem; hence the o-C6H42-metal bonding is best described as intermediate between that appropriate for metalla(IV)cyclic and an eta4-5,6-dimethylenecyclohexa-1,3-diene-metal(II) structure; consistent also is the fold angle, Phi, of 66.7 deg (Phi being thedral angle between the ZrCalphaCalpha’ plane and and the C8 extension of the aromatic plane).
Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about is helpful to your research. Product Details of 1271-19-8
Reference£º
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI