Chemistry:Xenon octafluoride
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-3D-balls-A.png) Approximate geometry predicted computationally
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| Names | |
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| IUPAC name
Octafluoroxenon
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| Other names
Xenon(VIII) fluoride
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| Identifiers | |
3D model (JSmol)
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| Properties | |
| F8Xe | |
| Molar mass | 283.280 g·mol−1 |
| Related compounds | |
Related compounds
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Osmium octafluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Xenon octafluoride is a chemical compound of xenon and fluorine with the chemical formula XeF
8.[1] This is still a hypothetical compound.[2][3] XeF
8 is predicted to be unstable even under pressures reaching 200 GPa.[4]
History
The compound was initially predicted in 1933 by Linus Pauling—among other noble gas compounds but which, unlike other xenon fluorides, could probably never be synthesized.[5][6] This appears to be due to the steric hindrance of the fluorine atoms around the xenon atom. However, scientists continue to try to synthesize it.[7]
Potential synthesis
The formation of xenon octafluoride has been calculated to be endothermic:[8]
- Xe + 4 F
2 → XeF
8
Ion
The doubly charged anion octafluoroxenate XeF2−8 in which the oxidation number of xenon is only VI, is stable in salts.
References
- ↑ Soni, P. L.; Soni, Vandna (6 June 2025) (in en). Inorganic Chemistry: Concepts and Main Group of Elements. CRC Press. p. 415. ISBN 978-1-040-35102-4. https://books.google.com/books?id=vu9GEQAAQBAJ&dq=xenon+octafluoride&pg=PA415. Retrieved 12 March 2025.
- ↑ Frlec, Boris; Holloway, John H.; Slivnik, Jože; Šmalc, Andrej; Volavšek, Bogdan; Zemljič, Anton (1 August 1970). "An examination of the possibility of the existence of xenon octafluoride" (in en). Journal of Inorganic and Nuclear Chemistry 32 (8): 2521–2527. doi:10.1016/0022-1902(70)80296-2. ISSN 0022-1902. https://www.sciencedirect.com/science/article/abs/pii/0022190270802962. Retrieved 31 March 2023.
- ↑ Housecroft, Catherine E.; Sharpe, A. G. (2008) (in en). Index. Pearson Prentice Hall. p. 1097. ISBN 978-0-13-175553-6. https://books.google.com/books?id=3sy4ZAP4EGAC&dq=xenon+octafluoride&pg=PA1097. Retrieved 31 March 2023.
- ↑ Peng, Feng; Botana, Jorge; Wang, Yanchao; Ma, Yanming; Miao, Maosheng (2016-11-17). "Unexpected Trend in Stability of Xe–F Compounds under Pressure Driven by Xe–Xe Covalent Bonds" (in en). The Journal of Physical Chemistry Letters 7 (22): 4562–4567. doi:10.1021/acs.jpclett.6b01922. ISSN 1948-7185. https://pubs.acs.org/doi/10.1021/acs.jpclett.6b01922.
- ↑ Weinstock, Bernard; Weaver, E. Eugene; Knop, Charles P. (December 1, 1966). "The Xenon-Fluorine System". Inorg. Chem. 66 (5): 2189. doi:10.1021/ic50046a026. https://pubs.acs.org/doi/10.1021/ic50046a026#. Retrieved 31 March 2023.
- ↑ Pauling, Linus (May 1933). "The Formulas of Antimonic Acid and the Antimonates" (in en). Journal of the American Chemical Society 55 (5): 1895–1900. doi:10.1021/ja01332a016. ISSN 0002-7863. Bibcode: 1933JAChS..55.1895P. https://pubs.acs.org/doi/abs/10.1021/ja01332a016. Retrieved 31 March 2023.
- ↑ Cotton, F. Albert (17 September 2009) (in en). Progress in Inorganic Chemistry, Volume 6. John Wiley & Sons. p. 249. ISBN 978-0-470-16657-4. https://books.google.com/books?id=IhkQIoEGL24C&dq=xenon+octafluoride&pg=PA249. Retrieved 31 March 2023.
- ↑ Holleman, A. F.; Wiberg, Egon; Wiberg, Nils (2001) (in en). Inorganic Chemistry. Academic Press. p. 394. ISBN 978-0-12-352651-9. https://books.google.com/books?id=Mtth5g59dEIC&dq=xenon+octafluoride&pg=PA394. Retrieved 31 March 2023.
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