Acta Cryst. (2004). E60, i3-i5  [ doi:10.1107/S1600536803028344 ]

Dipotassium nickel(II) bis(dihydrogendiphosphate) dihydrate, K₂Ni(H₂P₂O₇)₂·2H₂O

A. A. Tahiri, I. Messouri, M. Lachkar, P. Y. Zavalij, R. Glaum, B. El Bali and O. Rachid

Abstract: K₂Ni(H₂P₂O₇)₂·2H₂O is isostructural with its Zn analogue. Its structure is characterized by [Ni(H₂O)₂(H₂P₂O₇)₂]^2-coordination units. These are linked by hydrogen bonds and K⁺ ions. Ni²⁺ is situated on an inversion centre and has an almost regular octahedral coordination.

Online 19 December 2003

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