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Osmium(III) chloride

Topic: Chemistry

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Osmium(III) chloride
Names
Other names
trichloroosmium, osmium trichloride
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 236-587-7
Properties
Cl3Os
Molar mass 296.58 g·mol−1
Appearance black-brown crystals
Melting point 560 °C (1,040 °F; 833 K)
soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Osmium(III) chloride is an inorganic chemical compound of osmium metal and chlorine with the chemical formula OsCl
3.[1][2]

Synthesis

Osmium(III) chloride can be made by a reaction of chlorine with osmium:

2Os + 3Cl
2 → 2OsCl
3

It can also be made by heating of osmium(IV) chloride:

2OsCl
4 → 2OsCl
3 +
 Cl
2

Physical properties

Sample of commercial osmium trichloride trihydrate.

Osmium(III) chloride forms black-brown crystals.[3]

Osmium(III) chloride forms a hydrate of the composition OsCl
3 · 3H2O with dark green crystals.[4]

Uses and reactions

Osmium(III) chloride hydrate is used as a precursor material for the production of dichlorodihydridoosmium complex compounds and other compounds.[5]

It is the precursor to a variety of arene complexes.[6]

References

  1. ↑ "Osmium(III) chloride". Sigma Aldrich. https://www.sigmaaldrich.com/RU/en/product/aldrich/398594. 
  2. ↑ Lide, David R. (19 June 2003) (in en). 1998 Freshman Achievement Award. CRC Press. p. 4-79. ISBN 978-0-8493-0594-8. https://books.google.com/books?id=lFjg0L-uOxoC&dq=Osmium(III)+chloride&pg=SA4-PA79. Retrieved 31 March 2023. 
  3. ↑ "Osmium(III) chloride" (in en). heraeus.com. https://www.heraeus.com/en/hpm/hmp_products_solutions/precious_metal_compounds_homogeneous_catalysts/cp_selector/productdetail/5027818.html. 
  4. ↑ "Osmium(III) chloride hydrate, Thermo Scientific Chemicals | Fisher Scientific". fishersci.se. https://www.fishersci.se/shop/products/osmium-iii-chloride-hydrate-thermo-scientific/10450351. 
  5. ↑ "Osmium(III) chloride hydrate". Sigma Aldrich. https://www.sigmaaldrich.com/RU/en/product/aldrich/209066. 
  6. ↑ Bell, Andrew G.; Koźmiński, Wiktor; Linden, Anthony; von Philipsborn, Wolfgang (1996). "187Os NMR Study of (η6-Arene)osmium(II) Complexes: Separation of Electronic and Steric Ligand Effects". Organometallics 15 (14): 3124–3135. doi:10.1021/om960053i. 



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