Osmium(V) chloride
Names
Other names
pentachloroosmium, osmium pentachloride
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/5ClH.Os/h5*1H;/q;;;;;+5/p-5
    Key: UVOYHLXSTOWTCX-UHFFFAOYSA-I
  • Cl[Os](Cl)(Cl)(Cl)Cl
Properties
Cl5Os
Molar mass 367.48 g·mol−1
Appearance black solid
Density 4.09
Melting point 160 °C (320 °F; 433 K)
soluble
Structure
P21/c[1]
a = 9.17 Å, b = 11.5 Å, c = 11.97 Å
α = 90°, β = 109°°, γ = 90°.[2]
1194 Å3
8
Related compounds
Related compounds
 Osmium pentafluoride; Rhenium pentachloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Osmium(V) chloride is an inorganic chemical compound of osmium metal and chlorine with the chemical formula OsCl5.[3][4]

Potential synthesis

Osmium(V) chloride can be obtained in small amounts by reacting osmium hexafluoride with excess boron trichloride:[5]

2OsF6 + 4BCl3 → 2OsCl5 + 4BF3 + Cl2

It can also be obtained by the action of sulfur dichloride on osmium tetroxide:[2]

2OsO4 + 8SCl2 + 5Cl2 → 2OsCl5 + 8SOCl2

Physical properties

Osmium(V) chloride forms a black dimeric solid, isomorphic with rhenium(V) chloride. OsCl5 is sparingly soluble in non-polar solvents.[2] It is soluble in POCl3 to form a red-brown solution, which can crystallize OsCl5·POCl3.[6]

References

  1. ^ "Crystallography Open Database". qiserver.ugr.es. Retrieved 31 March 2023.
  2. ^ a b c Burns, Robert C.; O'Donnell, Thomas A. (1 November 1979). "Preparation and characterization of osmium pentachloride, a new binary chloride of osmium". Inorganic Chemistry. 18 (11): 3081–3086. doi:10.1021/ic50201a027. ISSN 0020-1669. Retrieved 31 March 2023.
  3. ^ Holleman, A. F.; Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Academic Press. p. 1461. ISBN 978-0-12-352651-9. Retrieved 31 March 2023.
  4. ^ Dehnicke, Kurt; Lößberg, Rainer (1 December 1980). "Eine neue Synthese und das IR-Spektrum von Osmiumpentachlorid / A New Synthesis and the IR Spectrum of Osmiumpentachloride". Zeitschrift für Naturforschung B (in German). 35 (12): 1525–1528. doi:10.1515/znb-1980-1207.
  5. ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 2985. ISBN 978-0-412-30120-9. Retrieved 31 March 2023.
  6. ^ Dehnicke, Kurt; Lößberg, Rainer (1980-12-01). "Eine neue Synthese und das IR-Spektrum von Osmiumpentachlorid / A New Synthesis and the IR Spectrum of Osmiumpentachloride". Zeitschrift für Naturforschung B. Walter de Gruyter GmbH. 35 (12): 1525–1528. doi:10.1515/znb-1980-1207. ISSN 1865-7117.
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