French
DeutschXenon octafluoride
-3D-balls-A.png) Approximate geometry predicted computationally | |
| Names | |
|---|---|
| IUPAC name Octafluoroxenon | |
| Other names Xenon(VIII) fluoride | |
| Identifiers | |
3D model (JSmol) | |
| |
| Properties | |
| XeF8 | |
| Related compounds | |
Related compounds | Osmium octafluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Xenon octafluoride is a chemical compound of xenon and fluorine with the chemical formula XeF8. This is still a hypothetical compound.[1][2] XeF8 is reported to be unstable even under pressures reaching 200 GPa.[3]
History
[edit]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.[4][5] 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.[6]
Potential synthesis
[edit]The formation of xenon octafluoride has been calculated to be endothermic:[7]
- Xe + 4 F2 → XeF8
References
[edit]- ^ 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". Journal of Inorganic and Nuclear Chemistry. 32 (8): 2521–2527. doi:10.1016/0022-1902(70)80296-2. ISSN 0022-1902. Retrieved 31 March 2023.
- ^ Housecroft, Catherine E.; Sharpe, A. G. (2008). Index. Pearson Prentice Hall. p. 1097. ISBN 978-0-13-175553-6. Retrieved 31 March 2023.
- ^ Luo, Dongbao; Lv, Jian; Peng, Feng; Wang, Yanchao; Yang, Guochun; Rahm, Martin; Ma, Yanming (2019). "A hypervalent and cubically coordinated molecular phase of IF 8 predicted at high pressure". Chemical Science. 10 (8): 2543–2550. doi:10.1039/c8sc04635b. PMC 6385887. PMID 30881685. Retrieved 31 March 2023.
- ^ Weinstock, Bernard; Weaver, E. Eugene; Knop, Charles P. (December 1, 1966). "The Xenon-Fluorine System". Inorg. Chem. 66 (5): 2189. doi:10.1021/ic50046a026. Retrieved 31 March 2023.
- ^ Pauling, Linus (May 1933). "The Formulas of Antimonic Acid and the Antimonates". Journal of the American Chemical Society. 55 (5): 1895–1900. doi:10.1021/ja01332a016. ISSN 0002-7863. Retrieved 31 March 2023.
- ^ Cotton, F. Albert (17 September 2009). Progress in Inorganic Chemistry, Volume 6. John Wiley & Sons. p. 249. ISBN 978-0-470-16657-4. Retrieved 31 March 2023.
- ^ Holleman, A. F.; Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Academic Press. p. 394. ISBN 978-0-12-352651-9. Retrieved 31 March 2023.