132939-91-4

Basic information

• Product Name: [IrCl(bis(diphenylphosphino)methane)2]
• Synonyms: [IrCl(bis(diphenylphosphino)methane)2]
• CAS NO: 132939-91-4
• Molecular Weight: 996.467
• Mol File: 132939-91-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: [IrCl(bis(diphenylphosphino)methane)2](CAS DataBase Reference)
• NIST Chemistry Reference: [IrCl(bis(diphenylphosphino)methane)2](132939-91-4)
• EPA Substance Registry System: [IrCl(bis(diphenylphosphino)methane)2](132939-91-4)

Safety Data

• Hazardous Substances Data: 132939-91-4(Hazardous Substances Data)

Upstream product

• 2071-20-7 bis-diphenylphosphinomethane 

Downstream Products

• 323185-87-1 [IrRu(CO)3(μ-H)(bis(diphenylphosphino)methane)2] 
• 132959-03-6 IrOs(H)2(CO)3((C₆H₄)C₆H₅PCH₂P(C₆H₅)2)((C₆H₅)2PCH₂P(C₆H₅)2) 

Relevant articles and documents

Reactions of phosphine ligands with iridium complexes leading to C(sp 3)-H bond activation

Treatment of [Ir2(μ-Cl)2(coe)4 (coe = cyclooctene) with the short-bite bifunctional N,P-donor ligand 1-benzyl-2-imidazolyldiphenylphosphine (Ph2PBnIm) resulted in the oxidative addition of the C(sp3)-H bond from the benzyl group to the metal to give [IrHCl-{Ph2P(CHPh)Im}(Ph2PBnIm)] (1), fully characterized by an X-ray study. The related ligand 2-pyridyldiphenylphosphine (Ph2PPy) reacted with [Ir2(μ-Cl)2(coe) 4] to give the mononuclear iridium(I) complex [IrCl(Ph 2PPy)2] (2), which showed P,N-chelating and P-coordinated ligands. Addition of Ph2BnIm to 2 produced the replacement of the P-coordinated Ph2PPy ligand along with the benzyl C-H bond addition to indium to give [IrHCl{Ph2P(CHPh)Im}-(Ph2PPy)]. This result indicates that mononuclear complexes of the type [IrCl(Ph 2PBnIm)-(L)] (L = P,N-chelating ligand) are the active species undergoing the C-H bond activation reaction. A related C-H bond activation process of the methylene group of dppm occurs in the reaction of [Ir 2(μ-Cl)2(coe)4] with dppm in toluene to give the hydrido complex with one deprotonated dppm ligand [IrHCl(Ph 2PCHPPh2)(dppm)] (4). On the other hand, the hydride migrates to the methanide carbon in 4 on dissolving the complex in CD 2Cl2 to establish an equilibrium with [IrCl(dppm) 2] without H/D exchange. Protonating agents such as HBF 4·Et2O and water reacted with complex 4 easily to give [IrHCl(dppm)2]X (X = BF4, OH). The mononuclear complex 2 was found to be highly reactive. Reactions of 2 with O2, H2, and dichloromethane gave the complexes [IrCl(O 2)(Ph2PPy)2], [IrCl(H)2(Ph 2PPy)2], and [IrCl2(CH2Cl)-(Ph 2PPy)2], respectively.