Received 20 November 2011
In the title compound, [Ce(C7H3NO4)(C7H4NO4)(H2O)5]·4H2O, the Ce3+ ion is nine-coordinated by two O atoms and two N atoms from one single and from one double deprotonated pyridine-2,5-dicarboxylate ligand and five water molecules in a distorted monocapped square-antiprismatic geometry. In the crystal, extensive O-HO hydrogen-bonding interactions result in a three-dimensional supramolecular architecture.
Data collection: SMART (Bruker, 2001); cell refinement: SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: EZ2275 ).
This work was supported financially by the North China University of Water Conservancy and Electric Power, China.
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