| Names | |
|---|---|
| Other names
Osmium(VII) fluoride | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| F7Os | |
| Molar mass | 323.22 g·mol−1 |
| Structure | |
| Pentagonal bipiramidal (calculated)[1] | |
| Related compounds | |
Related compounds |
Rhenium heptafluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Osmium heptafluoride is a possible inorganic chemical compound of osmium metal and fluorine with the chemical formula OsF
7.[2][3] It was first reported in 1966 by the reaction of fluorine and osmium at 600 °C and 400 atm,[4] but no purported synthesis could be reproduced in 2006, giving only osmium hexafluoride instead.[5]
If it exists, osmium(VII) fluoride is supposedly a bluish-yellow hygroscopic substance, extremely unstable.[6] The compound starts decomposing at –100 °C. It should be stored in a nickel vessel at the temperature of liquid nitrogen.
Osmium heptafluoride decomposes to osmium hexafluoride when slightly heated:
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|---|---|---|---|
| Os(0) |
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| Os(0,I) |
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| Os(I) |
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| Os(I,II) |
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| Os(II) |
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| Os(III) |
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| Os(IV) |
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| Os(V) |
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| Os(VI) |
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| Os(VII) |
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| Os(VIII) |
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