Nickel tetrafluoride

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Nickel tetrafluoride
Names
IUPAC name
nickel tetrafluoride, nickel(IV) fluoride, nickel(4+) fluoride, tetrafluoridonickel
Other names
Nickel{IV} fluoride
Identifiers
3D model (JSmol)
ChEBI
1565370
  • InChI=1S/4FH.Ni/h4*1H;/q;;;;+4/p-4
    Key: HSQLWDFHNPKAME-UHFFFAOYSA-J
  • F[Ni](F)(F)F
Properties
NiF4
Appearance tan solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Nickel tetrafluoride is a binary inorganic compound of nickel and fluorine with a chemical formula of NiF4.[1][2]

Synthesis

Nickel tetrafluoride can be obtained from the reaction of (XeF5)2NiF6 with AsF5 and K2NiF6 with BF3.[3][4]

Physical properties

Nickel tetrafluoride forms a tan-colored solid. It is unstable to F2 loss above –65°C to create NiF3.[3]

Chemical properties

Nickel tetrafluoride is an extremely strong oxidizer. The oxidizing properties are enhanced in presence of Lewis acids in anhydrous HF. In terms of oxidizing power, it is comparable to krypton difluoride. It can oxidize bromine pentafluoride to hexafluorobrome(VII) cation, potassium hexafluoroplatinate(V) to platinum(VI) fluoride.[5]

The compound is used in inorganic synthesis as a substitute for unstable krypton difluoride, since it is quite easily synthesized from available and stable potassium hexafluoronickelate(IV).

References

  1. ^ Li, Lin; Sakr, Ahmed K.; Schlöder, Tobias; Klein, Siri; Beckers, Helmut; Kitsaras, Marios-Petros; Snelling, Howard V.; Young, Nigel A.; Andrae, Dirk; Riedel, Sebastian (15 March 2021). "Searching for Monomeric Nickel Tetrafluoride: Unravelling Infrared Matrix Isolation Spectra of Higher Nickel Fluorides". Angewandte Chemie. 133 (12): 6461–6464. doi:10.1002/anie.202015501. PMC 7986428. PMID 33300240.
  2. ^ "nickel tetrafluoride (CHEBI:30392)". ebi.ac.uk. Retrieved 13 February 2024.
  3. ^ a b Macintyre, Jane E. (5 December 1996). Dictionary of Inorganic Compounds, Supplement 4. CRC Press. p. 200. ISBN 978-0-412-75020-5. Retrieved 13 February 2024.
  4. ^ Zemva, B.; Lutar, K.; Chacon, L.; Fele-Beuermann, M.; Allman, J.; Shen, C.; Bartlett, N. (October 1995). "Thermodynamically Unstable Fluorides of Nickel: NiF4 and NiF3 Syntheses and Some Properties". Journal of the American Chemical Society. 117 (40): 10025–10034. doi:10.1021/ja00145a013. ISSN 0002-7863. Retrieved 13 February 2024.
  5. ^ Haupt, Axel (22 March 2021). Organic and Inorganic Fluorine Chemistry: Methods and Applications. Walter de Gruyter GmbH & Co KG. ISBN 978-3-11-065950-4. Retrieved 13 February 2024.
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