Caesium hexafluorocuprate(IV)
Appearance
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Names | |
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Other names
Cesium hexafluorocuprate; Dicesium hexafluorocuprate
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Identifiers | |
3D model (
JSmol ) |
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Properties | |
Cs2CuF6 | |
Molar mass | 443.35 g/mol |
Appearance | Red orange solid[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Caesium hexafluorocuprate is the inorganic compound with the chemical formula Cs
2CuF
6. It is a red solid that degrades upon contact with water. It was first prepared be heating CsCuCl
3 and caesium fluoride at 410°C under 350 atmospheres of fluorine:[2]
- 2 CsCuCl3 + 2 CsF + 5 F2 → 2 Cs2CuF6 + 3 Cl2
The anion [CuF6]2- is a rare example of a copper(IV) complex. In terms of its electronic structure, the anion has a low-spin d7 configuration. It is thus susceptible to
Jahn-Teller distortion.[3]
References
- ISBN 9780412301209.
- .
- .
Further reading
- Müller, Bernd G. (1987). "Fluoride mit Kupfer, Silber, Gold und Palladium". Angewandte Chemie. 99 (11): 1120–1135. .
- Popova, T. V.; Aksenova, N. V. (2003). "Complexes of Copper in Unstable Oxidation States". Russian Journal of Coordination Chemistry. 29 (11): 743. S2CID 93464243.