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Caesium hexafluorocobaltate(IV)

Caesium hexafluorocobaltate(IV)
Identifiers
3D model (JSmol)
  • InChI=1S/2Cs.Cu.6FH/h;;;6*1H/q2*+1;+4;;;;;;/p-6
    Key: JSYFPWMRKBASLN-UHFFFAOYSA-H
  • [Cs+].[Cs+].F[Co-2](F)(F)(F)(F)F
Properties
CoCs2F6
Molar mass 438.734517 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Caesium hexafluorocobaltate(IV) is a salt with the chemical formula Cs2CoF6. 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.
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