Jump to content

Caesium hexafluorocobaltate(IV)

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Smokefoot (talk | contribs) at 17:33, 20 May 2020 (replace useless ref). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Caesium hexafluorocobaltate(IV) is a salt with the chemical formula Cs
2
CoF
6
. It can be synthesized by the reaction of Cs
3
[(CoCl
4
)Cl]
and fluorine.[1] The salt contains rare example of cobalt(IV) complex, i.e. [CoF6]2-.

It has cubic K2PtCl6 structure, with the lattice constant a = 8.91 Å, and the length of Co-F bond is 1.73 Å.[1] The complex is ferromagnetic and the ground state of Co(IV) is T2g3Eg2.[2]

See also

References

  1. ^ a b Quail, J. W.; Rivett, G. A. (1 August 1972). "Complex Fluorides of Tetravalent Cobalt". Canadian Journal of Chemistry. 50 (15): 2447–2450. doi:10.1139/v72-394.
  2. ^ Allen, Geoffrey Charles; Warren, Keith D. (1 September 1969). "Electronic spectrum of the hexafluorocobaltate(IV) anion". Inorganic Chemistry. 8 (9): 1902–1904. doi:10.1021/ic50079a019.