162443-02-9

Basic information

• Product Name: [(Os3(CO)11)2(μ-1,5-bis(diphenylphosphino)pentane)]
• CAS NO: 162443-02-9
• Molecular Weight: 2197.93
• Mol File: 162443-02-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [(Os3(CO)11)2(μ-1,5-bis(diphenylphosphino)pentane)](CAS DataBase Reference)
• NIST Chemistry Reference: [(Os3(CO)11)2(μ-1,5-bis(diphenylphosphino)pentane)](162443-02-9)
• EPA Substance Registry System: [(Os3(CO)11)2(μ-1,5-bis(diphenylphosphino)pentane)](162443-02-9)

Safety Data

• Hazardous Substances Data: 162443-02-9(Hazardous Substances Data)

Upstream product

• 133869-39-3 undecacarbonyl(acetonitrile)triosmium 
• 27721-02-4 1,5-bis-(diphenylphosphino)pentane 

Relevant articles and documents

Methylene chain length and coordination geometry in triosmium clusters containing diphosphine ligands. X-Ray crystal structures of >(n = 4 or 5) and 2>

The bis-acetonitrile compound and the butadiene compound 4-cis-C4H6)> react with dppp to give only (1) .Protonation of 1 with trifluoroacetic acid leads to + (2) with the hydride bridging the same osmium atoms as the dppp.The bridging dppp compound (1) reacts with dppp at 110 deg C to give 1-dppp)(μ-dppp)> (4) whereas under the same conditions reacts with dppm (dppm = Ph2PCH2PPh2) to give (5).Protonation of 5 with trifluoroacetic acid gives + (6) with the hydride bridging the unsubstituted Os - Os edge.The monoacetonitrile compound reacts with dppp at 0 deg C to give two compounds: 1-dppp)> (7) containing one coordinated and one free phosphorus atom and 2(μ-dppp)> (8) with one dppp ligand bridging two Os3(CO)11 moieties.Solid-state structures for 1, 5 and the previously reported cluster (3) are reported.Compound 1 crystallizes in the space group P212121 with unit cell parameters a = 11.770(2) Angstroem, b = 16.957(3) Angstroem, c = 21.681(5) Angstroem, V = 4327(2) Angstroem3 and Z = 4.Least-squares refinement of 6118 reflections gave a final agreement factor of R = 0.077 (Rw = 0.087).Compound 3 crystallizes in the space group P21/c with unit cell parameters a = 12.361(2) Angstroem, b = 16.804(2) Angstroem, c = 20.935(2) Angstroem, β = 116.66(1) deg, V = 3886(2) Angstroem3 and Z = 4.Least-squares refinement of 2284 reflections gave a final agreement factor of R = 0.028 (Rw = 0.032).Compound 5 crystallizes in the space group Pca21 with unit cell parameters a = 21.398(3) Angstroem, b = 15.684(4) Angstroem, c = 18.219(4) Angstroem, V = 6115(4) Angstroem3 and Z = 4.Least-squares refinement of 5376 reflections gave a final agreement factor R = 0.060 (Rw = 0.062).Keywords: Osmium; Clusters; Diphosphines; Chelates; Carbonyl; Methylene