1357616-37-5

Basic information

• Product Name: [Ir2(H)2(CO)2(μ-H)(μ-CCHF)(bis(diethylphosphino)methane)2][B(3,5-(CF3)2C6H3)4]
• CAS NO: 1357616-37-5
• Molecular Weight: 1735.18
• Mol File: 1357616-37-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Ir2(H)2(CO)2(μ-H)(μ-CCHF)(bis(diethylphosphino)methane)2][B(3,5-(CF3)2C6H3)4](CAS DataBase Reference)
• NIST Chemistry Reference: [Ir2(H)2(CO)2(μ-H)(μ-CCHF)(bis(diethylphosphino)methane)2][B(3,5-(CF3)2C6H3)4](1357616-37-5)
• EPA Substance Registry System: [Ir2(H)2(CO)2(μ-H)(μ-CCHF)(bis(diethylphosphino)methane)2][B(3,5-(CF3)2C6H3)4](1357616-37-5)

Safety Data

• Hazardous Substances Data: 1357616-37-5(Hazardous Substances Data)

Upstream product

• 75-02-5 1-fluoroethylene 
• 1357616-33-1 [Ir2H(CO)2(μ-CO)(bis(diethylphosphino)methane)2][B(3,5-(CF3)2C6H3)4] 

Relevant articles and documents

Tandem C-F and C-H bond activation in fluoroolefins promoted by a bis(diethylphosphino)methane-bridged diiridium complex: Role of water in the activation processes

The diiridium complex [Ir2(CO)3(μ-H)(depm) 2]+ (1) reacts with vinyl fluoride, 1,1-difluoroethylene, trifluoroethylene, and tetrafluoroethylene, undergoing C-F bond activation in all cases, in addition to C-H activation in the incompletely substituted fluoroolefins. Reaction of 1 with vinyl fluoride readily undergoes geminal C-F/C-H activation, resulting in the bridging vinylidene product, [Ir 2(H)(CO)3(μ-C=CH2)(depm)2] + (2). Compound 1 reacts with 1,1-difluoroethylene at subambient temperature to give minor amounts of [Ir2(CO)3(κ 1:η2-C≡CH)(depm)2]+ (4), resulting from the loss of 2 equiv of HF from the fluoroolefin complex, along with a mixture of two isomers of [Ir2(C(F)=CH2)(CO) 3(μ-CF2CH2)(depm)2]+ (5a/5b), in which 2 equiv of the olefin has been incorporated. Compound 1 also reacts with trifluoroethylene at -30 °C, giving a 1:1 mix of isomers of the trifluoroethylene-bridged species [Ir2(H)(CO)3(μ- CFHCF2)(depm)2]+ (7a/7b), and warming this mixture above -15 °C converts both isomers to two products, [Ir 2(H)(CO)3(μ-C=CF2)(depm)2] + (8), in which the geminal C-F and C-H bonds in the fluoroolefin have been activated, and [Ir2(H)(CO)3(μ-CHCF 3)(depm)2]+ (9), the result of a [1,2]-fluoride shift to give the bridging 2,2,2-trifluoroethylidene moiety. Compound 9 reacts further with a second equivalent of trifluoroethylene over 12 h to produce the 2,2,2-trifluoroethylidene/cis-difluorovinyl complex, [Ir2(C(F)=CFH) (CO)3(μ-CHCF3)(depm)2]+ (10). Finally, tetrafluoroethylene reacts with 1 to produce the bridged adduct, [Ir2(H)(CO)3(μ-CF2CF2)(depm) 2]+ (11), followed by a single C-F activation to give [Ir2(C(F)=CF2)(CO)3(depm)2] + (12). The roles of the hydride ligand and exogenous water in the C-F activation processes are discussed.