Caesium hexafluorocobaltate(IV) is a salt with the chemical formula Cs2CoF6. It can be synthesized by the reaction of Cs3[(CoCl4)Cl] and fluorine. 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. The complex is ferromagnetic and the ground state of Co(IV) is T2g3Eg2.
See also
References
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. https://doi.org/10.1139%2Fv72-394 ↩
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. https://doi.org/10.1139%2Fv72-394 ↩
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. /wiki/Doi_(identifier) ↩