Acta Cryst. (2002). E58, i91-i92  [ doi:10.1107/S1600536802016161 ]

Cobalt potassium dihydrogendiphosphate dihydrate, CoK₂(H₂P₂O₇)₂·2H₂O

A. Alaoui Tahiri, R. Ouarsal, M. Lachkar, B. El Bali and M. Bolte

Abstract: The crystal structure of the title compound, CoK₂(H₂P₂O₇)₂·2H₂O, is, to our knowledge, the first example of a mixed-metal dihydrogendiphosphate, containing an alkali earth metal and a divalent transition metal. The metal ions and the two water O atoms are located on a crystallographic mirror plane.

Online 20 September 2002

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