Jump to content

Caesium hexafluorocobaltate(IV)

From Wikipedia, the free encyclopedia
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
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.