129133-98-8

Basic information

• Product Name: OsCl(triphenylphosphine)2(CO)(trichlorosilyl)
• CAS NO: 129133-98-8
• Molecular Weight: 912.69
• Mol File: 129133-98-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: OsCl(triphenylphosphine)2(CO)(trichlorosilyl)(CAS DataBase Reference)
• NIST Chemistry Reference: OsCl(triphenylphosphine)2(CO)(trichlorosilyl)(129133-98-8)
• EPA Substance Registry System: OsCl(triphenylphosphine)2(CO)(trichlorosilyl)(129133-98-8)

Safety Data

• Hazardous Substances Data: 129133-98-8(Hazardous Substances Data)

Upstream product

• 10025-78-2 trichlorosilane 
• 129134-01-6 chloro-carbonyl-hydrido-bis(triphenylphosphine)osmium 

Relevant articles and documents

Examination of metal-silicon bonding through structural and theoretical studies of an isostructural set of five-coordinate silyl complexes, Os(SiR3)Cl(CO)(PPh3)2 (R = F, Cl, OH, Me)

Os(SiCl3)Cl(CO)(PPh3)2 is prepared by treatment of OsPhCl(CO)(PPh3)2 with excess HSiCl3 and serves in turn as the starting material for the syntheses of three more five-coordinate süyl complexes Os(SiR3)Cl(CO)(PPh3)2 (R = F, OH, Me) via substitution of the chloride groups on silicon. All four compounds were fully characterized, including a single-crystal solid-state structure of each derivative. Carbonyl stretching frequencies decrease and Os-Si bond lengths increase as R changes in the order from F to Cl to OH to Me. Ab initio calculations were performed on the model complexes Os(SiR3)Cl(CO)(PH3)2 (R = F, Cl, OH, Me) to explain the trends observed in the IR and X-ray studies, and the importance of the π-acceptor capacities of the silyl groups are discussed.