93842-30-9

Basic information

• Product Name: chlorobis[[(diphenylphosphino)ethyl]dimethylsilyl]iridium(III)
• Synonyms: chlorobis[[(diphenylphosphino)ethyl]dimethylsilyl]iridium(III)
• CAS NO: 93842-30-9
• Molecular Weight: 770.461
• Mol File: 93842-30-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: chlorobis[[(diphenylphosphino)ethyl]dimethylsilyl]iridium(III)(CAS DataBase Reference)
• NIST Chemistry Reference: chlorobis[[(diphenylphosphino)ethyl]dimethylsilyl]iridium(III)(93842-30-9)
• EPA Substance Registry System: chlorobis[[(diphenylphosphino)ethyl]dimethylsilyl]iridium(III)(93842-30-9)

Safety Data

• Hazardous Substances Data: 93842-30-9(Hazardous Substances Data)

Upstream product

• 86934-58-9 2-dimethylsilyl-1-diphenylphosphinoethane 

Downstream Products

• 93842-47-8 [Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2(Cl)(CNCH(CH₃)2)] 
• 88453-33-2 Ir(P(C₆H₅)2CH₂CH₂Si(CH₃)2)2(H)(CO) 
• 93842-49-0 [Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2(CO)2]⁽¹⁺⁾*BF₄^(1-)=[Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2(CO)2]BF₄ 
• 93842-46-7 [Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2(Cl)(CNC(CH₃)2CH₂C(CH₃)3)] 
• 93842-44-5 [Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2(Cl)(P(OC₂H₅)3)] 
• 93842-43-4 [Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2(Cl)(P(OCH₃)3)] 
• 93842-50-3 [Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2H(CNC(CH₃)3)] 
• 93842-45-6 [Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2(Cl)(CNC(CH₃)3)] 
• 93842-42-3 [Ir((C₆H₅)2PCH₂CH₂Si(CH₃)2)2(Cl)(PF₃)] 
• 93842-33-2 bromobis[[(diphenylphosphino)ethyl]dimethylsilyl]iridium(III) 
• 93842-34-3 iodobis[[(diphenylphosphino)ethyl]dimethylsilyl]iridium(III) 

Relevant articles and documents

(Phosphinoalkyl)silyl complexes. 5. Synthesis and reactivity of congeneric chelate-stabilized disilyl complexes of rhodium(III) and iridium(III): Chlorobis[[(diphenylphosphino)ethyl]dimethylsilyl]rhodium and -iridium

Reaction of [M(COD)Cl]2 (M = Rh. Ir; COP = cycloocta-1,5-diene) with excess PPh2CH2CH2SiMe2H in THF solution affords the 5-coordinate M(III) complexes M(PPh2CH2CH2SiMe2)2Cl (1, M = Rh; 2, M = Ir), which are enantiomeric with the two P atoms trans; the common geometry for 1 and 2 deduced from spectroscopic data has been substantiated with X-ray diffraction that shows crystals of the two compounds to be isomorphous. Halide ion exchange reactions yield the analogues 3-6 M(PPh2CH2CH2SiMe2)2X in which X = Br or I. Treatment of [Ir(COD)Cl]2 with 2 mol equiv of PPh2CH2CH2SiMe2H allows the 6-coordinate intermediate Ir(PPh2CH2CH2SiMe2)(COD)(H)(Cl) (7) to be recovered, in which the chelating ligands occupy a plane with H and Cl mutually trans and from which chel (diphos, dpm, PPh2CH2CH2SiMe2H) displaces COD, yielding respectively Ir(PPh2CH2CH2SiMe2) (chel) (H) (Cl) (8, diphos; 9, dpm) or compound 2, although under similar reaction conditions a Rh analogue of 7 could not be obtained. The coordinatively unsaturated Ir complex 2 reacts rapidly with a variety of neutral molecules (CO, PF3, P[OR]3, RNC), generating 6-coordinate adducts as single isomers possessing a common structure with L entering cis to Cl, trans to Si; with L = t-BuNC, Me3CCH2CMe2NC, or Me2CHNC, Rh analogues 10-12 are also formed from 1. Compounds 1 and 10-12 offer the first fully characterized examples respectively of bis(silyl)rhodium, octahedral silylrhodium species, the stability of which contrasts remarkably with the sensitivity toward dissociative cleavage of unsupported Si-Rh bonds. Conversion of 1 or 2 to the corresponding hydrido complexes M(PPh2CH2CH2SiMe2)2H (23, M = Rh; 24, M = Ir) has been demonstrated in solution with NMR spectroscopy, and although the structures of these species remain uncertain since attempted isolation leads to decomposition, compound 24 has been intercepted to form 6-coordinate CO or t-BuNC adducts.