Acta Cryst. (2010). E66, m867  [ doi:10.1107/S1600536810024797 ]

{2-[2-(Carboxymethoxy)phenoxy]acetato}[2,2'-(o-phenylenedioxy)diacetic acid]sodium 4,4'-bipyridine hemisolvate monohydrate

L. Xu, L.-Y. Gu, Y.-Y. Yang, B. Wang and T.-G. Kang

Abstract: In the title compound, [Na(C₁₀H₉O₆)(C₁₀H₁₀O₆)]·0.5C₁₀H₈N₂·H₂O, the Na atom is eight-coordinated in an distorted dicapped-octahedral geometry by eight O atoms from a 2-(2-carboxymethoxyphenoxy)acetate (o-BDOAH) anion and a 2,2'-(o-phenylenedioxy)diacetic acid (o-BDOAH₂) molecule. The uncoordinated 4,4'-bipyridine molecule is arranged around an inversion center and exhibits rotational disorder. A three-dimensional supramolecular network is built up in the crystal through O-HO and O-HN hydrogen bonds between the uncoordinated water molecule, the uncoordinated 4,4'-bipyridine molecule and the sodium complex molecule.

Online 3 July 2010

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