Potassium hexafluorocuprate(III)

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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.[1]

Synthesis and structure[edit]

The compound is prepared by oxidizing the mixture of potassium chloride and cuprous chloride with fluorine:[2]

3 KCl + CuCl + 3 F2 → K3CuF6 + 2 Cl2

A variety of analogues are known.[3] The compound reacts with water easily, producing oxygen and copper(II) products.[1]

See also[edit]


  1. ^ a b Holleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils (ed.), Inorganic Chemistry, translated by Eagleson, Mary; Brewer, William, San Diego/Berlin: Academic Press/De Gruyter, ISBN 0-12-352651-5
  2. ^ Popova, T. V.; Aksenova, N. V. (November 1, 2003). "Complexes of Copper in Unstable Oxidation States". Russian Journal of Coordination Chemistry. 29 (11): 743–765. doi:10.1023/B:RUCO.0000003432.39025.cc. S2CID 93464243.
  3. ^ R. Hoppe, G. Wingefeld "Zur Kenntnis der Hexafluorocuprate(III)" Zeitschrift für anorganische und allgemeine Chemie 1984, Vol. 519, pages 195–203. doi:10.1002/zaac.19845191221