Potassium pentachloronitridoosmate
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3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| 36326 | |
PubChem CID
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| Properties | |
| K2[OsCl5N] | |
| Molar mass | 459.7 g/mol |
| Appearance | Reddish brown solid |
| Soluble | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Potassium pentachloronitridoosmate is an inorganic chemical compound with the formula K2[OsCl5N]. It is a true nitride, as the nitrogen atom is bonded directly to the osmium atom, which is itself in the +6 oxidation state.
Synthesis
The compound is made by reacting potassium osmiamate with cold hydrochloric acid in the presence of potassium chloride.[1][2]
- KOsO3N + KCl + 6HCl → K2OsCl5N + Cl2 + 3H2O
Properties
Potassium pentachloronitridoosmate is a red powder that is easily soluble in water, the solutions of which slowly decompose. It is soluble in HCl, but insoluble in organic solvents, and it decomposes in alkali. It forms prismatic crystals.[1]
Reactions
Ozone can oxidize this compound back to potassium osmiamate. HCl and stannous chloride reduce it to K2Os(NH2)Cl5, which is regarded as an amide of potassium hexachloroosmate.[1][3]
References
- ^ a b c Rochow, Eugene (1960). Inorganic Syntheses (PDF). Vol. 6. McGraw-Hill Book Company. pp. 206–207. Retrieved 9 October 2025.
- ^ Prakash Satya (2013). "Platinum Metals-IV:Osmium". Advanced Chemistry of Rare Elements, 5th Ed. India: S Chand and Company Limited. pp. 619, 623. ISBN 978-81-219-4254-6. Retrieved 9 October 2025.
- ^ J. Newton Friend (1920). "Osmium and its compounds". A textbook of inorganic chemistry, vol.IX Part I Cobalt, Nickel, and The Elements of The Platinum Group (PDF). London: Charles Griffin and Company, Limited. pp. 231–232. Retrieved 9 October 2025.