Lithium hexafluorotungstate

Lithium hexafluorotungstate

Names
Other names Lithium hexafluorotungstate(V)
Identifiers
CAS Number	65629-56-3
3D model (JSmol)	Interactive image
InChI InChI=1S/6FH.Li.W/h6*1H;;/q;;;;;;+1;+5/p-6 Key: QVIONVCQUNIUMJ-UHFFFAOYSA-H
SMILES [Li+].[F-][W+5]([F-])([F-])([F-])([F-])[F-]
Properties
Chemical formula	LiWF6
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Lithium hexafluorotungstate is an inorganic chemical compound with the chemical formula LiWF₆. ^{[1] [2]}

Synthesis

Lithium hexafluorotungstate can be prepared by reacting lithium iodide and tungsten hexafluoride in liquid sulfur dioxide. ^[3]

Physical properties

The compound has the LiSbF₆ structure with unit cell parameters a=5.45 Å, α=57.4°. ^[4]

Chemical properties

Lithium hexafluorotungstenate is unstable and decomposes in a vacuum at 50 °C. It can react in an alkaline solution of hypochlorite as follows: ^[5]

2 LiWF₆ + ClO⁻ + 14 OH⁻ → 2 Li⁺ + 2 WO₄²⁻ + Cl⁻ + 12 F⁻ + 7 H₂O

References

1. Bard, Allen J.; Parsons, Roger; Jordan, Joseph (27 August 1985). Standard Potentials in Aqueous Solution. CRC Press. p. 499. ISBN   978-0-8247-7291-8 . Retrieved 17 July 2024.
2. Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 2338. ISBN   978-0-412-30120-9 . Retrieved 17 July 2024.
3. Kemmitt, R. D. W.; Russell, D. R.; Sharp, D. W. A. (1 January 1963). "844. The structural chemistry of complex fluorides of general formula AIBVF6" . Journal of the Chemical Society : 4408–4413. doi:10.1039/JR9630004408. ISSN   0368-1769 . Retrieved 17 July 2024.
4. Babel, D. (1967). "Structural chemistry of octahedral fluorocomplexes of the transition elements" . Structure and Bonding. 3. Springer: 1–87. doi:10.1007/BFb0118878. ISBN   978-3-540-03990-7 . Retrieved 17 July 2024.
5. Burgess, J.; Peacock, R.D. (December 1977). "The fluoride ion affinity of tungsten pentafluoride and the electron affinity of tungsten hexafluoride" . Journal of Fluorine Chemistry. 10 (6): 479–486. Bibcode:1977JFluC..10..479B. doi:10.1016/S0022-1139(00)82428-8 . Retrieved 17 July 2024.