Carbonylchlorohydrotris(triphenylphosphine)osmium

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Carbonylchlorohydrotris (triphenylphosphine) osmium (II)
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 241-050-5
  • InChI=1S/3C18H15P.CO.ClH.Os.H/c3*1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;1-2;;;/h3*1-15H;;1H;;/q;;;;;+2;-1/p-1
    Key: XUWSMTCLGDHTRB-UHFFFAOYSA-M
  • [H-].[C-]#[O+].C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.[Cl-].[Os+2]
Properties
OsHCl(CO)(PPh3)3
Molar mass 1041.6 g/mol
Appearance White solid.[1]
Melting point 179-183°C
insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Carbonylchlorohydrotris(triphenylphosphine)osmium is a coordination complex with the formula OsHCl(CO)[P(C6H5)3]3. It contains four different ligands: hydride, carbon monoxide, chloride, and triphenylphosphine. As confirmed by X-ray crystallography, the complex has with meridional geometry (three phosphine ligands are coplanar) and the CO and Cl are mutually trans.[2]

It forms white crystalline prisms. It is insoluble in water, alcohols, and non-aromatic hydrocarbons, but moderately soluble in benzene, chloroform, dichloromethane, and acetone. When heated to its melting point in air, it reacts with oxygen and decomposes. In a sealed container of nitrogen it melts at 290°C with decomposition. The infrared spectrum shows a strong band at 2099 cm−1.[1][3]

Synthesis

Reactions

References

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