Received 8 September 2011
In the title compound, [Cu(CH3CO2)2(C9H7N3)(H2O)]n, the CuII ion is pentacoordinated in a square-pyramidal geometry. The N atoms of the two chelating symmetry-related 5-(pyridin-3-yl)pyrimidine ligands and the O atoms of the two monodentate acetate anions are nearly coplanar, with a mean deviation from the least-squares plane of 0.157 (2) Å and the CuII ion is displaced by 0.050 (3) Å from this plane towards the apical water O atom. Bridging through the bis-monodentate 5-(pyridin-3-yl)pyrimidine ligand forms a one-dimensional coordination polymer extending parallel to . In the crystal, O-HO hydrogen bonds link the molecules into a two-dimensional supramolecular structure parallel to (100). The crystal studied was an inversion twin with a 0.57 (3):0.43 (3) domain ratio.
For background to the network topologies and applications of coordination polymers, see: Allendorf et al. (2009); Evans & Lin (2002); Fujita et al. (2005); He et al. (2006); Hou et al. (2010). For complexes with 5-(4-pyridyl)pyrimidine, see: Thébault et al. (2006).
Data collection: SMART (Bruker, 2003); cell refinement: SAINT (Bruker, 2003); data reduction: SAINT (Bruker, 2003); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LX2203 ).
We are grateful for financial support from the National Natural Science Foundation of China (grant No. 30970298), and we are also thankful for financial support from the Foundation of Shandong province (No. J11LF27) and the Foundation of Yantai City (No. 2011076).
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