Acta Cryst. (2006). E62, m278-m280  [ doi:10.1107/S160053680501473X ]

catena-Poly[[diaquacalcium(II)]bis[-2-oxo-1,2-dihydropyridine-1-acetato]]

J.-G. Zhao, S. Gao, Z.-Y. Zhang, L.-H. Huo and H. Zhao

Abstract: In the title coordination polymer, [Ca(2-OPA)₂(H₂O)₂]_n [2-OPA^- is 2-oxo-1,2-dihydropyridine-1-acetate, C₇H₆NO₃], the Ca atom is eight-coordinated by six O atoms from four 2-OPA^- ligands and two water molecules, and displays a dodecahedral coordination geometry. Each 2-OPA^- ligand bridges two adjacent Ca atoms, forming a chain along the a-axis direction. The CaCa separation within the polymer is 4.1022 (8) Å. A two-dimensional supramolecular framework is further constructed by hydrogen bonds and weak - stacking interactions.

Online 11 January 2006

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