Reference of 1271-19-8, In heterogeneous catalysis, the catalyst is in a different phase from the reactants. At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 1271-19-8, name is Titanocenedichloride. In an article£¬Which mentioned a new discovery about 1271-19-8
Solid-state chlorine nmr of group iv transition metal organometallic complexes
Static solid-state 35 Cl (I ) 3/2 ) NMR spectra of the organometallic compounds Cp 2 TiCl 2 , CpTiCl 23 , Cp 2 ZrCl 2 , Cp 2 HfCl 2 ,Cp* 2 ZrCl 2 , CpZrCl 3 , Cp*ZrCl 3, Cp 2 ZrMeCl, (Cp 2 ZrCl) 2 mu-O, and Cp 2 ZrHCl (Schwartz’s reagent) have been acquired at 9.4 T withthe quadrupolar Carr-Purcell Meiboom-Gill (QCPMG) sequence in a piecewi se manner. Spectra of several samples have also been acquired at 21.1 T.The electric field gradient (EFG) tensor parameters, the quadrupolar co upling constant (C Q ) and quadrupolar asymmetry parameter (Q), are readily extracted from analytical simulations of the spectra. The 35Cl EFG and chemicalshift tensor parameters are demonstrated to be sensitive probes of metallocene structure and allow for differentiation of monomeric and oligomeric structures. First-principles calculations of the35Cl EFG parameters successfully reproduce the experimental values and trends. The origin of the observed values of C Q (35Cl) are f urther examined with natural localized molecular orbital (NLMO) analyses. The combination of experimental and theoretical methods applied to themodel compounds are employed to structurally characterize Schwartz’s re agent (Cp 2 ZrHCl), for which a crystal structure is unavailable. Aside from a fewselect examples of single-crystal NMR spectra, this is the first reported application of solid-state 35Cl NMR spectroscopy tomolecules with covalently bound chlorine atoms. It is anticipated that the methodology outlined herein will find application in the structural characterization of a wide variety of chlorine-containing transition-met al and main-group systems.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.1271-19-8. In my other articles, you can also check out more blogs about 1271-19-8
Reference£º
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI