Chemistry:Krypton hexafluoride

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Krypton hexafluoride
Names
Other names
Krypton(VI) fluoride
Identifiers
3D model (JSmol)
Properties
F6Kr
Molar mass 197.788 g·mol−1
Appearance claimed to be white crystalline solid[citation needed]
Related compounds
Related compounds
Xenon hexafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Krypton hexafluoride is an inorganic chemical compound of krypton and fluorine with the chemical formula KrF
6
. It is still a hypothetical compound.[1] Calculations indicate it is unstable.[2]

History

In 1933, Linus Pauling predicted that the heavier noble gases would be able to form compounds with fluorine and oxygen. He also predicted the existence of krypton hexafluoride.[3][verification needed][4] Calculations suggest it would have octahedral molecular geometry.[1]

So far, out of all possible krypton fluorides, only krypton difluoride (KrF
2
) has actually been synthesized.

References

  1. 1.0 1.1 Dixon, David A.; Wang, Tsang-Hsiu; Grant, Daniel J.; Peterson, Kirk A.; Christe, Karl O.; Schrobilgen, Gary J. (1 November 2007). "Heats of Formation of Krypton Fluorides and Stability Predictions for KrF4 and KrF6 from High Level Electronic Structure Calculations" (in en). Inorganic Chemistry 46 (23): 10016–10021. doi:10.1021/ic701313h. ISSN 0020-1669. PMID 17941630. 
  2. Kurzydłowski, Dominik; Sołtysiak, Magdalena; Dżoleva, Aleksandra; Zaleski-Ejgierd, Patryk (2017-10-28). "High-Pressure Reactivity of Kr and F2—Stabilization of Krypton in the +4 Oxidation State". Crystals 7 (11): 329. doi:10.3390/cryst7110329. ISSN 2073-4352. 
  3. 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. 
  4. Williams, Jeffrey H. (28 September 2017) (in en). Crystal Engineering: How Molecules Build Solids. Morgan & Claypool Publishers. p. 4–1. ISBN 978-1-68174-625-8. https://books.google.com/books?id=3D9iDwAAQBAJ&dq=Krypton+hexafluoride&pg=SA3-PA14. Retrieved 28 March 2023. 

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