781639-03-0

Basic information

• Product Name: IrCl(H)2(PPh₃)2(pyridine)
• CAS NO: 781639-03-0
• Molecular Weight: 833.372
• Mol File: 781639-03-0.mol

Chemical Properties

• CAS DataBase Reference: IrCl(H)2(PPh₃)2(pyridine)(CAS DataBase Reference)
• NIST Chemistry Reference: IrCl(H)2(PPh₃)2(pyridine)(781639-03-0)
• EPA Substance Registry System: IrCl(H)2(PPh₃)2(pyridine)(781639-03-0)

Safety Data

• Hazardous Substances Data: 781639-03-0(Hazardous Substances Data)

Upstream product

• 110-86-1 pyridine 
• 59246-46-7 bis(triphenylphosphine)carbonyliridium(I) chloride 
• 1333-74-0 parahydrogen 
• 78970-70-4 [Ir(H)2(η1-pyridine)2(PPh3)2][PF6] 
• 107-06-2 1,2-dichloro-ethane 

Relevant articles and documents

Detection of picomole amounts of biological substrates by para-hydrogen-enhanced NMR methods in conjunction with a suitable receptor complex

NMR monitoring of solutions containing para-hydrogen and an iridium-based reporter complex is shown to allow the detection of picomole quantities of biological substrates containing suitable donor sites. Copyright

Synthesis and reactivity of iridium complexes with pyridine and piperidine ligands: Models for hydrodenitrogenation

The complexes [Ir(H)2(η1-N-L) 2(PPh3)2]PF6, L = py (1), iQ (2) and pip (3) (py = pyridine, iQ = isoquinoline, pip = piperidine) have been synthesized in high yields by hydrogenation of [Ir(cod)(PPh3) 2]PF6 in the presence of the appropriate nitrogen compound. When hydrogen is bubbled through 1,2-dichloroethane solutions of 1 or, two new species were formed in each case by C-Cl bond activation of the solvent, ηIr(H)2Cl(η1-N-L)(PPh3) 2 (L = py, 4; iQ, 5) and IrH(Cl)2( 1-N-L)(PPh3)2 (L = py, 6; iQ, 7). Reaction of 3 with py or iQ yielded complexes 1 and 2, respectively, while under a slow stream of carbon monoxide the complex [Ir(H)2(η 1-N-pip)(CO)(PPh3)2]PF6 (8) was produced. Complex 3 also reacts with halide and 4-bromothiophenolate anions leading to the corresponding neutral species Ir(H)2(X)(η 1-N-pip)(PPh3)2, X = Cl (9), I (10) and 4-BrC6H4S (11), or with [MoS4]2- to yield the hetero-bimetallic complex [Ir(H)(PPh3) 2(μ-S)2MoS2]- (13). All the new complexes were characterized by analytical and spectroscopic methods. The X-ray structures of 1, 2 and 8 consist of distorted octahedra with a mutually cis disposition of the two hydrides and mutually trans phosphines. Complexes 1, 2 and 3 and their derivatives are of interest as models for the chemisorption step in hydrodenitrogenation reactions on solid catalysts.