Poly[[(4,4′-bipyridine-κN)[μ3-(S)-2-hy­droxy­butane­dioato-κ4 O 1,O 2:O 4:O 4′]zinc] dihydrate]


In the title compound, {[Zn(C4H4O5)(C10H8N2)] 2H2O}n, the Zn ion displays a distorted tetragonal–pyramidal coordination environment with one hydroxy O and three carboxylate O atoms from three malate anions, and the one remaining position occupied by an N atom from a 4,40-bipyridine ligand. The pyridine rings of the 4,40-bipyridine ligand are twisted with respect to each other by a dihedral angle of 35.8 (2) . The uncoordinated water molecules are linked to the complex molecules by O—H O hydrogen bonds. Each malate anion forms four coordination bonds with three Zn atoms, establishing a layer structure parallel to the ac plane. Adjacent layers are further linked via O—H N hydrogen bonding. – stacking between the pyridine rings [face-to-face distance = 3.651 (3) Å] occurs in the crystal structure.

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@inproceedings{Lu2011Poly44bipyridineN3S2hydroxybutanedioato, title={Poly[[(4,4′-bipyridine-κN)[μ3-(S)-2-hy­droxy­butane­dioato-κ4 O 1,O 2:O 4:O 4′]zinc] dihydrate]}, author={Yu-kun Lu and Jian Qing Liu and Cheng-Lin Diao and Ren-Qing L{\"{u} and Yun-Qi Liu}, year={2011} }