Krypton hexafluoride

Krypton hexafluoride

Names
Other names Krypton(VI) fluoride
Identifiers
3D model (JSmol)	Interactive image
InChI InChI=1S/F6Kr/c1-7(2,3,4,5)6 Key: FLBFFHZDXUHIEP-UHFFFAOYSA-N
SMILES F[Kr](F)(F)(F)(F)F
Properties
Chemical formula	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 KrF₆. 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] [4]} Calculations suggest it would have octahedral molecular geometry. ^[1]

So far, out of all possible krypton fluorides, only krypton difluoride (KrF₂) has actually been synthesized.^{[ citation needed ]}

References

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". 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. "CHEMISTRY OF RARE GASES UNFOLDS". Chemical & Engineering News Archive. 40 (53): 51–54. 1962-12-31. doi:10.1021/cen-v040n053.p051. ISSN   0009-2347.
4. Williams, Jeffrey H. (28 September 2017). Crystal Engineering: How Molecules Build Solids. Morgan & Claypool Publishers. p. 4–1. ISBN   978-1-68174-625-8 . Retrieved 28 March 2023.