Names | |
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Other names
Osmium(VII) fluoride
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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
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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:
Os(0) | |||
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Os(0,I) | |||
Os(I) | |||
Os(I,II) | |||
Os(II) |
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Os(III) | |||
Os(IV) | |||
Os(V) | |||
Os(VI) | |||
Os(VII) |
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Os(VIII) |