Received 1 October 2012
In the title complex, [Zn(C10H6N3O2)2(H2O)4], the ZnII ion lies on an inversion center and is coordinated in a slightly distorted octahedral geometry by two N atoms from two 2-(pyridin-4-yl)pyrimidine-5-carboxylate ligands and four water molecules. In the symmetry-unique part of the molecule, the pyridine and pyrimidine rings form a dihedral angle of 7.0 (1)°. In the crystal, the coordinating water molecules act as donor groups and carboxylate O atoms act as acceptors in O-HO hydrogen bonds, forming a three-dimensional network.
For a general background to supramolecular chemistry, see: Collet et al. (1996). For general syntheses and applications of MOFs, see: Sen et al. (2012); Saha et al. (2012). For a related structure, see: Piao & Xuan (2011).
Data collection: SMART (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LH5541 ).
RS wishes to thank FCT(SFRH/BPD/71798/2010) for a postdoctoral grant.
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