Krypton Tetrafluoride

Krypton tetrafluoride
Identifiers
CAS Number	13709-53-0;
3D model (JSmol)	Interactive image;
	InChI InChI=1S/F4Kr/c1-5(2,3)4 Key: PLAFPZRFEDSAJL-UHFFFAOYSA-N;
	SMILES [Kr](F)(F)(F)F;
Properties
Chemical formula	F4Kr
Molar mass	159.792 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Krypton(IV) fluoride is a hypothetical inorganic chemical compound of krypton and fluorine with the chemical formula KrF
4. At one time researchers though they made it, but the claim was discredited.^[1] The compound is predicted to be difficult to make and unstable if made.^[2] Theoretical analysis indicates KrF
4 would have an approximately square planar molecular geometry.^[2]

Synthesis

The claimed synthesis was by passing electric discharge through krypton-fluorine mixture:^[3]

Kr + 2F
2 → KrF
4

Physical properties

The claimed compound formed white crystalline solid.^[4] Thermally, it is less stable than XeF
4.^[5]

References

↑ O'Donnell, T. A. (8 June 2017) (in en). The Chemistry of Fluorine: Comprehensive Inorganic Chemistry. Elsevier. p. 1026. ISBN 978-1-4831-4642-3. https://books.google.com/books?id=ED79BAAAQBAJ&dq=Krypton+tetrafluoride&pg=PA1026. Retrieved 28 March 2023.
↑ ^2.0 ^2.1 Dixon, David A.; Wang, Tsang-Hsiu; Grant, Daniel J.; Peterson, Kirk A.; Christe, Karl O.; Schrobilgen, Gary J. (2007). "Heats of Formation of Krypton Fluorides and Stability Predictions for KrF₄ and KrF₆ from High Level Electronic Structure Calculations". Inorg. Chem. 46 (23): 10016–10021. doi:10.1021/ic701313h.
↑ (in en) Advanced Inorganic Chemistry Vol-1. Krishna Prakashan Media. p. 846. ISBN 978-81-87224-03-7. https://books.google.com/books?id=0uwDTrxyaB8C&dq=Krypton+tetrafluoride&pg=PA846. Retrieved 28 March 2023.
↑ Cotton, F. Albert (1964) (in en). Progress in Inorganic Chemistry, Volume 6. John Wiley & Sons. p. 260. ISBN 978-0-470-16657-4. https://books.google.com/books?id=IhkQIoEGL24C&dq=Krypton+tetrafluoride&pg=PA260. Retrieved 28 March 2023.
↑ Grosse, A. V.; Kirshenbaum, A. D.; Streng, A. G.; Streng, L. V. (15 March 1963). "Krypton Tetrafluoride: Preparation and Some Properties". Science 139 (3559): 1047–1048. doi:10.1126/science.139.3559.1047. https://www.science.org/doi/10.1126/science.139.3559.1047. Retrieved 28 March 2023.

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[1] O'Donnell, T. A. (8 June 2017) (in en). The Chemistry of Fluorine: Comprehensive Inorganic Chemistry. Elsevier. p. 1026. ISBN 978-1-4831-4642-3. https://books.google.com/books?id=ED79BAAAQBAJ&dq=Krypton+tetrafluoride&pg=PA1026. Retrieved 28 March 2023.

[Dixon2007-2] 2.0 ^2.1 Dixon, David A.; Wang, Tsang-Hsiu; Grant, Daniel J.; Peterson, Kirk A.; Christe, Karl O.; Schrobilgen, Gary J. (2007). "Heats of Formation of Krypton Fluorides and Stability Predictions for KrF₄ and KrF₆ from High Level Electronic Structure Calculations". Inorg. Chem. 46 (23): 10016–10021. doi:10.1021/ic701313h.

[3] (in en) Advanced Inorganic Chemistry Vol-1. Krishna Prakashan Media. p. 846. ISBN 978-81-87224-03-7. https://books.google.com/books?id=0uwDTrxyaB8C&dq=Krypton+tetrafluoride&pg=PA846. Retrieved 28 March 2023.

[4] Cotton, F. Albert (1964) (in en). Progress in Inorganic Chemistry, Volume 6. John Wiley & Sons. p. 260. ISBN 978-0-470-16657-4. https://books.google.com/books?id=IhkQIoEGL24C&dq=Krypton+tetrafluoride&pg=PA260. Retrieved 28 March 2023.

[SC-5] Grosse, A. V.; Kirshenbaum, A. D.; Streng, A. G.; Streng, L. V. (15 March 1963). "Krypton Tetrafluoride: Preparation and Some Properties". Science 139 (3559): 1047–1048. doi:10.1126/science.139.3559.1047. https://www.science.org/doi/10.1126/science.139.3559.1047. Retrieved 28 March 2023.

Identifiers

CAS Number	13709-53-0
3D model (JSmol)	Interactive image
InChI InChI=1S/F4Kr/c1-5(2,3)4 Key: PLAFPZRFEDSAJL-UHFFFAOYSA-N
SMILES [Kr](F)(F)(F)F
Properties
Chemical formula	F₄Kr
Molar mass	159.792 g·mol⁻¹
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references