One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, SDS of cas: 1293-65-8, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 1293-65-8, Name is 1,1′-Dibromoferrocene, molecular formula is C10Br2Fe
Indirectly connected bis(N-Heterocyclic Carbene) bimetallic complexes: Dependence of metal-metal electronic coupling on linker geometry
Reaction of l,l’,3,3′-tetra(tert-amyl)benzobis(imidazolylidene) (1) with 2 equiv of FcN3 or FcNCS afforded bisadducts [(FcN3) 2(1)] (2) or [(FcNCS)2(1)] (3), respectively (Fc = ferrocene). To the best of our knowledge, these represent the first examples of complexes comprising metals indirectly connected to the carbene atoms of N-heterocyclic carbenes (NHCs) via their ligand sets. Cyclic and differential pulse voltammetry indicated that bis(NHC) 1 facilitated significant electronic coupling between ferrocene centers in 2 (DeltaE = 140 mV), but not in 3. We believe the different degrees of electronic interaction are due to geometric factors: the triazene linker in 2 is nearly coplanar with the bis(NHC) scaffold, whereas the isothiocyanate linker is orthogonal, as determined by X-ray crystallography. Employing this “indirect connection” strategy should enable tuning of metalmetal interactions by simple alteration the organic linker between NHC and MLn fragments rather than complete redesign thereof. Given that NHC-reactive azide or isothiocyanate groups can be incorporated into both organic and inorganic compounds, this approach is envisioned to facilitate access to otherwise inaccessible catalysts and materials.
Indirectly connected bis(N-Heterocyclic Carbene) bimetallic complexes: Dependence of metal-metal electronic coupling on linker geometry
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. SDS of cas: 1293-65-8, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 1293-65-8, in my other articles.
Reference£º
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion