Potassium hexafluorocuprate(III) explained

Potassium hexafluorocuprate(III) is an inorganic compound with the chemical formula K₃CuF₆. It is a green paramagnetic solid, a relatively rare example of a copper(III) compound.

Synthesis and structure

The compound is prepared by oxidizing the mixture of potassium chloride and cuprous chloride with fluorine:^[1]

3 KCl + CuCl + 3 F₂ → K₃CuF₆ + 2 Cl₂A variety of analogues are known.^[2] The compound reacts with water easily, producing oxygen and copper(II) products.

See also

• Cuprate(III)
• caesium hexafluorocuprate(IV)

References

1. Popova. T. V.. Aksenova, N. V.. Complexes of Copper in Unstable Oxidation States. Russian Journal of Coordination Chemistry. 1 November 2003. 29. 11. 743–765. 10.1023/B:RUCO.0000003432.39025.cc. 93464243.
2. R. Hoppe, G. Wingefeld "Zur Kenntnis der Hexafluorocuprate(III)" Zeitschrift für anorganische und allgemeine Chemie 1984, Vol. 519, pages 195–203.