Caesium hexafluorocuprate is the
inorganic compound
In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemis ...
with the chemical formula . It is a red solid that degrades upon contact with water. It was first prepared be heating and
caesium fluoride
Caesium fluoride or cesium fluoride is an inorganic compound with the formula CsF and it is a hygroscopic white salt. Caesium fluoride can be used in organic synthesis as a source of the fluoride anion. Caesium also has the highest electropositivi ...
at 410°C under 350 atmospheres of fluorine:
:2 CsCuCl
3 + 2 CsF + 5 F
2 → 2 Cs
2CuF
6 + 3 Cl
2
The anion
uF6sup>2- is a rare example of a copper(IV) complex. In terms of its electronic structure, the anion has a low-spin d
7 configuration. It is thus susceptible to
Jahn-Teller distortion.
Further reading
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References
Caesium compounds
Copper compounds
Fluoro complexes
Metal halides
Fluorometallates
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