Acta Cryst. (2007). E63, m1714  [ doi:10.1107/S1600536807024373 ]

Poly[hydronium [-(ethylenediaminetetraacetato-⁸N,N',O,O',O'',O''':O'''',O''''')holmate(III)] monohydrate]

X.-L. You, L.-H. Wang and S. W. Ng

Abstract: The holmium(III) atom in the title compound, {(H₃O)[Ho(C₁₀H₁₂N₂O₈)]·nH₂O}_n, is N,N',O,O',O'',O'''-chelated by the ethylenediaminetetraacetate tetraanion. It is also linked to the O atoms of two other tetraaanions in the polyanionic layer. The metal atom, which lies on a special position of site symmetry m, exists in a square-antiprismatic geometry. The tetraanion is disordered across a mirror plane. The oxonium cation and water molecule are disordered in a ratio of 2:1. The title compound is isostructural with the erbium compound reported in the preceding paper.

Online 26 May 2007

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