108023-03-6

Basic information

• Product Name: 1,1-Os₃(CO)10[(Z)-Ph₂PCH=CHPPh₂]
• CAS NO: 108023-03-6
• Molecular Weight: 1247.11
• Mol File: 108023-03-6.mol

Chemical Properties

• CAS DataBase Reference: 1,1-Os₃(CO)10[(Z)-Ph₂PCH=CHPPh₂](CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-Os₃(CO)10[(Z)-Ph₂PCH=CHPPh₂](108023-03-6)
• EPA Substance Registry System: 1,1-Os₃(CO)10[(Z)-Ph₂PCH=CHPPh₂](108023-03-6)

Safety Data

• Hazardous Substances Data: 108023-03-6(Hazardous Substances Data)

Upstream product

• 983-80-2 cis-1,2-bis-(diphenylphosphino)ethene 
• 869589-23-1 1,2-Os₃(CO)10[(Z)-Ph₂PCH=CHPPh₂] 
• 15696-40-9 dodecacarbonyl triosmium 
• 75-05-8 acetonitrile 

Downstream Products

• 869589-23-1 1,1-Os₃(CO)10[(Z)-Ph₂PCH=CHPPh₂] 

Relevant articles and documents

Reversible isomerization of a diphosphine ligand about a triosmium cluster: Synthesis, kinetics, and X-ray structures for the bridging and chelating isomers of Os3(CO)10[(Z)-Ph2PCH=CHPPh 2]

Substitution of the MeCN ligands in the activated cluster Os 3(CO)10(MeCN)2 (1) by the unsaturated diphosphine ligand (Z)-Ph2PCH=CHPPh2 proceeds rapidly at room temperature to furnish the ligand-bridged cluster 1,2-Os 3(CO)10[(Z)-Ph2PCH=CHPPh2] (2b). Heating 2b leads to the formation of the thermodynamically more stable chelating isomer 1,1-Os3(CO)10-[(Z)-Ph2PCH=CHPPh 2] (2c). The molecular structure of each isomer of 2 has been crystallographically determined, and the 31P NMR data have been recorded. The kinetics for the ligand isomerization have been investigated by UV-vis and 31P NMR spectroscopy in toluene solution over the temperature range of 358-383 K. The reversible nature of the diphosphine isomerization is confirmed by 31P NMR measurements, and reported within are the forward (k-1) and reverse (k-1) first-order rate constants for the bridge-to-chelate rearrangement. On the basis of the activation parameters and lack of CO inhibition on the reaction rate, a nondissociative, intramolecular mechanism involving the migration of one P group from an adjacent osmium center to the other P-substituted osmium center via a μ2-bridged phosphine species is presented.

CLUSTER CHEMISTRY. XXXXII. SOME RUTHENIUM CARBONYL COMPLEXES OF cis-1,2-BIS(DIPHENYLPHOSPHINO)ETHENE. X-RAY STRUCTURE OF Ru2(CO)6

A reaction between Ru3(CO)12 and cis-PPh2CH=CHPPh2 (ebdp), catalysed by , gave Ru3(μ-ebdp)(CO)10, which readily eliminated Ru(CO)4 on heating to form Ru2(μ-ebdp)(CO)6 in high yield.This complex has been fully characterised by an X-ray study, the ligand chelates one, nearly square-planar ruthenium, with the two phosphorus donors and bonds to the second, nearly trigonal bipyramidal ruthenium, via the C=C double bond.The Ru-Ru bond (2.8812(6) Angstroem) is formally a 2e donor bond from the square planar Ru to the trigonal bipyramidal Ru.The complex Ru2(CO)6 is monoclinic, space group P21/c with a 12.242(3), b 18.821(3), c 13.613(2) Angstroem, β 90.69(1) deg and Z = 4; 5036 independent data with I > 3?(I) were refined to R 0.034, R' 0.036.The reaction between Os3(CO)12 and ebdp gave only Os3(μ-ebdp)(CO)10.