Application of 12150-46-8, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article，once mentioned of 12150-46-8
The design and synthesis of a new type of topologically chiral [2]catenane is reported. The compounds are formed easily by self-assembly on reaction of the oligomeric digold(I) diacetylide precursor complex [{4-BrC6H4CH(4-C6H4 OCH2CCAu)2}n] with diphosphine ligands. Reactions with the diphosphines PP = bis(diphenylphosphinophoshino)acetylene, trans-l,2-bis(diphenylphosphino)ethylene, bis(diphenylphosphino)ethane, and 1,1?-bis(diphenylphosphino)ferrocene yield simple ring complexes [4-BrC6H4CH(4-C6H4 OCH2CCAu)2(mu-PP)] as the only products, since the spacer groups in the diphosphines are not long enough or are too bulky to allow catenane formation. Reaction with PP = bis(diphenylphosphino)-propane or bis(diphenylphosphino) butane gave [2]catenane complexes [{4-BrC6H4CH(4-C6H4 OCH2CCAu)2-(mu-PP)}2], whose structures are confirmed crystallographically. The macrocyclic ring compounds have Cs symmetry but, as a result of the presence of the unsymmetrical “hinge group” 4-BrC6H4CH, the [2]catenanes have C2 symmetry and so are topologically chiral. In favorable cases, the formation of the [2]catenane can be proved by NMR spectroscopy since catenane formation leads to nonequivalence of most ring atoms. The formation of the [2]catenanes was successfully predicted based on the conformation of the precursor bis(phenol), and it is argued that the methods used should be more generally applicable to the synthesis of functionally substituted supermolecules of interest for application in molecular devices.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 12150-46-8 is helpful to your research., Application of 12150-46-8
Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate