Acta Cryst. (2007). E63, m2941-m2942  [ doi:10.1107/S1600536807055237 ]

Decaaquabis[₂-(5-carboxylato-m-phenylenedioxy)diacetato]trizinc(II) dihydrate

Y.-H. Wen, X. Feng and S. W. Ng

Abstract: In the crystal structure of the title compound, [Zn₃(C₁₁H₇O₈)₂(H₂O)₁₀]·2H₂O, the trianionic carboxylate unit uses one oxyacetate -OCH₂CO₂^- arm to chelate a Zn atom through the ether and carboxylate O atoms. The other oxyacetate arm is free; the -CO₂^- end has a formal negative charge. The central Zn atom lies on a special position of site symmetry . The uncoordinated water molecules form a three-dimensional hydrogen-bonded network. One solvent water molecule is disordered over two positions in a 2:1 ratio.

Online 9 November 2007

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