Acta Cryst. (2007). E63, m399-m401  [ doi:10.1107/S1600536806055553 ]

Poly[aqua(₃-3,5-dinitrosalicylato)calcium(II)]

W.-D. Song, X.-X. Guo and C.-H. Zhang

Abstract: In the title coordination polymer, [Ca(C₇H₂N₂O₇)(H₂O)]_n, the Ca^II atom is seven-coordinate by six O atoms from four 3,5-dinitrosalicylatate ligands and one water molecule, and displays a distorted pentagonal-bipyramidal geometry. Centrosymmetrically related dinuclear calcium units with a CaCa separation of 3.8665 (8)Å form layers which are self-assembled into a three-dimensional network by intermolecular O-HO hydrogen bonds.

Online 10 January 2007

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