Synthetic Route 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
Fe(C5H4PPh2)2 (dppf) undergoes facile thermal substitution reactions with R2C2Co2(CO)6 (R = MeO2C, CF3) to yield a variety of products. When R = MeO2C, initial coordination gives mu2-(MeO2C)2C2Co2(CO)5(eta;1-dppf); its crystal and molecular structure, monoclinic, P21/c, a = 8.954(3), b = 20.211(2) c = 23.836(5) A, beta = 100.55(2), Z = 4, R1 = 0.0345 for 5764 reflections 1 > 2 sigma (I), confirms the monodentate coordination mode for dppf. At low dppf/alkyne-complex ratios, oligomeric products with dppf ligands linking up to five (mu2-MeO2C)2C2Co2 modules have been characterised but, as the proportion of the phosphine ligand increases, unstable products, which include a eta1-mu-eta1 dppf configuration, are obtained as well. In contrast, for R = CF3, only [(CF3)2C2]Co2(CO)4(eta2-dppf) is found in significant yield. A molecule with two different reduction centres, [mu2-(MeO2C)2C2Co2(CO)5](mu-dppf)[Co3(mu3-CPh)(CO)8], was also characterised. Electrochemistry of the dppf complexes was characterised by fast ligand dissociation upon reduction of the (mu-alkyne)Co2 redox centre and oxidation of coordinated dppf. There was no evidence for communication between redox centres.
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., Synthetic Route 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