Acta Cryst. (2012). E68, m1395
[ doi:10.1107/S1600536812043206 ]

catena-Poly[[[diaquacopper(II)]--quinoline-2,3-dicarboxylato-³N,O²:O³] monohydrate]

Q.-H. Xia, Z.-F. Guo, L. Liu, Z. Wang and B. Li

Abstract: In the title compound, {[Cu(C₁₁H₅NO₄)(H₂O)₂]·H₂O}_n, the Cu^II ion is five-coordinated by two O atoms and one N atom of two symmetry-related quinoline-2,3-dicarboxylate ligands, and two water molecules. The water molecules occupy basal and apical positions of the square-pyramidal coordination polyhedron. Each quinoline-2,3-dicarboxylate dianion bridges two adjacent Cu^II ions, forming a polymeric chain along [010]. The chains are further connected via O-HO hydrogen-bonding interactions and quinoline ring - interactions [centroid-centroid distance = 3.725 (4) Å], generating a three-dimensional structure. Lattice water molecules participate in the crystal structure via O-HO hydrogen bonds.

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