Osmium octafluoride
| Approximate geometry predicted computationally | |
| Names | |
|---|---|
| IUPAC name Octafluoroosmium | |
| Other names Osmium(VIII) fluoride | |
| Identifiers | |
| 3D model (JSmol) | |
| PubChem CID | |
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| Properties | |
| OsF8 | |
| Molar mass | 342.22 g·mol−1 | 
| Structure | |
| C2/c (4 GPa) R3 (240 GPa) | |
| Related compounds | |
| Related compounds | Xenon octafluoride | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Osmium octafluoride is an inorganic chemical compound of osmium metal and fluorine with the chemical formula OsF8. Some sources consider it to be a still hypothetical compound. An early report of the synthesis of OsF8 was much later shown to be a mistaken identification of OsF6. Theoretical analysis indicates OsF8 would have an approximately square antiprismatic molecular geometry.