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: 3 KCl + CuCl + 3 F2 → K3CuF6 + 2 Cl2 A variety of analogues are known.R. Hoppe, G. Wingefeld "Zur Kenntnis der Hexafluorocuprate(III)" Zeitschrift für anorganische und allgemeine Chemie 1984, Vol. 519, pages 195–203. The compound reacts with water easily, producing oxygen and copper(II) products.
See also Cuprate(III) Caesium hexafluorocuprate(IV)
References