Acta Cryst. (2008). E64, m1523  [ doi:10.1107/S1600536808036441 ]

Poly[[triaqua[₄-N-(4-carboxylatophenyl)iminodiacetato]sodium(I)zinc(II)] dihydrate]

D.-S. Ma

Abstract: In the title coordination polymer, {[NaZn(C₁₁H₈NO₆)(H₂O)₃]·2H₂O}_n, the Zn atom is coordinated in a distorted tetrahedral environment by three carboxylate O atoms from two (4-carboxylatophenylimino)diacetate ligands and one water molecule; the Na atom is in an distorted octahedral coordination environment formed by four carboxylate O atoms from three (4-carboxylatophenylimino)diacetate ligands and two water molecules. The Zn atoms and Na atoms are linked by (4-carboxylatophenylimino)diacetate ligands into a three-dimensional framework; the uncoordinated water molecules fill the voids of the skeleton and stabilize it by O-HO hydrogen bonds.

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