A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article，once mentioned of 12150-46-8, COA of Formula: C34H28FeP2
Treatment of the Schiff base ligands 4-(NC5H4)C6H4C(H){double bond, long}N[2?-(OH)C6H4] (a), 3,5-(N2C4H3)C6H4C(H){double bond, long}N[2?-(OH)-C6H4] (b) and 3,5-(N2C4H3)C6H4C(H) {double bond, long}N[2?-(OH)-5?-tBuC6H3] (c) with palladium (II) acetate in toluene gave the poly-nuclear cyclometallated complexes [Pd{4-(NC5H4)C6H3C(H){double bond, long}N[2?-(O)C6H4]}]4 (1a), [Pd{3,5-(N2C4H3)C6H3C(H){double bond, long}N[2?-(O)-C6H4]}]4 (1b) and [Pd{3,5-(N2C4H3)C6H3C(H){double bond, long}N[2?-(O)-5?-tBuC6H3]}]4 (1c) respectively, as air stable solids, with the ligand acting as a terdentate [C,N,O] moiety after deprotonation of the -OH group. Reaction of the cyclometallated complexes with triphenylphosphine gave the mononuclear species [Pd{4-(NC5H4)C6H3C(H) {double bond, long}N[2?-(O)C6H4]}(PPh3)], (2a), [Pd{3,5-(N2C4H3)C6H3C(H) {double bond, long}N[2?-(O)C6H4]}(PPh3)], (2b) and [Pd{3,5-(N2C4H3)C6H3C(H){double bond, long}N[2?-(O)-5?-tBuC6H3)}(PPh3)], (2c) in which the polynuclear structure has been cleaved and the coordination of the ligand has not changed [C,N,O]. When the cyclometallated complexes 1b and 1c were treated with the diphosphines Ph2P(CH2)4PPh2 (dppb), Ph2PC5H4FeC5H4PPh2 (dppf) and Ph2P(CH2)2PPh2 (t-dppe) in a 1:2 molar ratio the dinuclear cyclometallated complexes [{Pd[3,5-(N2C4H3)C6H3C(H){double bond, long}N{2?-(O)C6H4}]}2(mu-Ph2P(CH2)4PPh2)], (3b), [{Pd[3,5-(N2C4H3)C6H3C(H) {double bond, long}N{2?-(O)-5?-tBuC6H3}]}2(mu-Ph2P(CH2)4PPh2)], (3c), [{Pd[3,5-(N2C4H3)C6H3C(H){double bond, long}N{2?-(O)C6H4}]}2(mu-Ph2P(eta5-C5H4)Fe(eta5-C5H4)PPh2)], (4b), [{Pd[3,5-(N2C4H3)C6H3C(H) {double bond, long}N{2?-(O)-5?-tBuC6H3}]}2(mu-Ph2P(eta5C5H4)Fe(eta5C5H4)P-Ph2)], (4c) and [{Pd[3,5-(N2C4H3)C6H3C(H){double bond, long}N{2?-(O)-5?-tBuC6H3}]}2(mu-Ph2P(CH{double bond, long}CH)PPh2)], (5c) were obtained as air stable solids.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.COA of Formula: C34H28FeP2. In my other articles, you can also check out more blogs about 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