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. 97239-80-0, Name is 1,1′-Bis(diisopropylphosphino)ferrocene, molecular formula is C22H28FeP2. In a Article，once mentioned of 97239-80-0, Formula: C22H28FeP2
The crystal structure of [Ir(cod)(L-L)]+ 3 [cod = cycloocta-1,5-diene, L-L = 1-(diisopropylphosphino)-1?-(diphenylphosphino)ferrocene] can be related to those of the analogous complexes with L-L =1,1?-bis(diphenylphosphino)ferrocene (dppf) 1 and 1,1?-bis(diisopropylphosphino)ferrocene (disppf), 2, all the complexes being readily synthesized from [Ir(cod)(py)2]+ (py = pyridine). An optimum diphosphine bite angle of approximately 99 is maintained in all three complexes by varying the twist of the ferrocene, which decreases with increasing steric profile of the phosphine, and by distortion of the geometry at the iridium atom away from square planar towards tetrahedral. The twist about the ferrocene moiety induces chirality at the iridium atom in all three complexes and the interchange of stereoisomers can be followed by variable-temperature 1H NMR spectroscopy. Application of the Eyring equation gave approximate values of DeltaG? for this process of 36.1 ± 0.2, 39.3 ± 0.2 and 34.3 ± 0.2 kJ mol-1 for 1-3 respectively. The ligand disoppf also induces considerable distortion away from square-planar geometry in the complex [Rh(nbd)(disoppf)][BF4]4 {nbd = norbornadiene (bicyclo[2.2.1]hepta-2,5-diene)}, as found in a crystal structure determination, which may account for the unusual lability of the chelating diphosphine. This is demonstrated by its reactions with Ph2P(CH2)nPPh2 (n = 1 or 2) both of which give [Rh(L-L)2]+. More surprisingly, considering its lability in [Rh(nbd)(dppf)]+, dppf also readily displaced disoppf from 4, to give [Rh(nbd)(dppf)][BF4] 5. The nbd ligand in this complex is not displaced by reaction with an excess of dppf.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Formula: C22H28FeP2. In my other articles, you can also check out more blogs about 97239-80-0
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