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. 13991-08-7, Name is 1,2-Bis(diphenylphosphino)benzene, molecular formula is C30H24P2. In a Article，once mentioned of 13991-08-7, SDS of cas: 13991-08-7
The reactions of gallium and indium trihalides with 1,2-bis-(diphenylphosphanyl)benzene (DP) and bis[(2-diphenyl-phosphanyl)phenyl]phenylphosphane (TP) lead to a variety of molecular and ionic complexes. Treatment of InCl3 with DP results in [(DP)2InCl2]+[InCl4]- (1). With InBr3 or InI3 molecular 1:1 complexes (DP)InX3 (2: X = Br, 3: X = I) and ionic 1:2 complexes [(DP)InX2J+[InX4]- (4: X = Br, 5: X = I) are obtained. With GaBr3 and GaI3 only the ionic complexes [(DP)GaX2]+[GaX4]- (6: X = Br, 7: X = I) are generated. According to single-crystal X-ray analyses the environment of the metal center is octahedral in the cation of 1, square pyramidal in 3, and tetrahedral in the cations of 5 and 7. The reactions of TP with GaI3 or InI3 afford ionic complexes [(TP)MI2]+[MI4]- (8: M = Ga, 9: M = In). As shown by 31P-NMR studies and X-ray analyses, TP acts as a bidentate ligand in both complexes. The central phosphorus atom is not engaged in coordinative bonding. The 31P resonances of all compounds appear at higher field as compared to the free ligand. This phenomenon calls for further investigations and a detailed theoretical treatment.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.SDS of cas: 13991-08-7, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 13991-08-7, in my other articles.
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