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Caesium hexafluorocobaltate(IV)

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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][better source needed] 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.[2] The complex is ferromagnetic and the ground state of Co(IV) is T2g3Eg2.[3]

See also

References

  1. ^ (in Chinese)张青莲. 《无机化学丛书》第九卷:锰分族、铁系、铂系. 北京: 科学出版社. p. 333. ISBN 7-03-002238-6.
  2. ^ 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.
  3. ^ 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.