1532520-81-2

Upstream product

• 12112-67-3 bis(1,5-cyclooctadiene)diiridium(I) dichloride 
• 1337563-62-8 N,N'-bis(diphenylphosphino)-1,1-dimethyl-N,N'-di-p-tolyl-silanediamine 

Downstream Products

• 1533459-75-4 [Ir(CO)(1,5-cyclooctadiene)(SiMe₂{N(4-C₆H₄CH₃)PPh₂}₂)]Cl 
• 1532520-84-5 IrCl(CO)(SiMe₂{N(4-C₆H₄CH₃)PPh₂}₂) 
• 1532520-85-6 IrHCl(CO)(SiNP-H) 
• 1532520-87-8 IrHCl(CO)(SiNP-H) 

Relevant academic research and scientific papers

Intramolecular C-H oxidative addition to iridium(I) in complexes containing a N,N′-diphosphanosilanediamine ligand

The iridium(I) complexes of formula Ir(cod)(SiNP)+ (1 +) and IrCl(cod)(SiNP) (2) are easily obtained from the reaction of SiMe2{N(4-C6H4CH3)PPh 2}2 (SiNP) with [Ir(cod)(CH3CN) 2]+ or [IrCl(cod)]2, respectively. The carbonylation of [1][PF6] affords the cationic pentacoordinated complex [Ir(CO)(cod)(SiNP)]+ (3+), while the treatment 2 with CO gives the cation 3+ as an intermediate, finally affording an equilibrium mixture of IrCl(CO)(SiNP) (4) and the hydride derivative of formula IrHCl(CO)(SiNP-H) (5) resulting from the intramolecular oxidative addition of the C-H bond of the SiCH3 moiety to the iridium(I) center. Furthermore, the prolonged exposure of [3]Cl or 2 to CO resulted in the formation of the iridium(I) pentacoordinated complex Ir(SiNP-H)(CO)2 (6). The unprecedented κ3C,P,P′ coordination mode of the [SiNP-H] ligand observed in 5 and 6 has been fully characterized in solution by NMR spectroscopy. In addition, the single-crystal X-ray structure of 6 is reported.