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Acta Cryst. (2012). E68, m1149
[ doi:10.1107/S1600536812033739 ]


Y.-L. Mao, X.-K. Yu and J.-L. Lin

Abstract: In the centrosymmetric title compound, [Cd(C7H4NO4)2(C3H4N2)2(H2O)2], the CdII atom, located on an inversion center, is coordinated by two N atoms and four O atoms in an octahedral geometry. The internal cohesion of the molecule is enhanced by an intramolecular O-H...O hydrogen bond. Intermolecular O-H...O and C-H...O hydrogen bonds and [pi]-[pi] contacts [centroid-centroid distance = 3.6549 (2) Å] define two-dimensional networks parallel to (001), which are further connected by weaker C-H...O interactions into a weakly connected three-dimensional supramolecular framework.

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