Acta Cryst. (2007). E63, m1722-m1723  [ doi:10.1107/S1600536807024610 ]

catena-Poly[[[triaquabarium(II)]-di--2,4,6-trinitrophenolato-³O:O',O'';³O,O':O''] benzimidazole disolvate]

D.-Y. Ma and G.-H. Deng

Abstract: In the title complex, {[Ba(C₆H₂N₃O₇)₂(H₂O)₃]·2C₇H₆N₂}_n, the Ba^II coordination polyhedron is defined by six O atoms from four 2,4,6-trinitrophenolate ligands and three water molecules, displaying a distorted monocapped square-antiprismatic geometry. Both the Ba atom and one of the coordinated water molecules lie on a twofold axis. The compound forms an infinite chain parallel to the c axis through ³-bridging 2,4,6-trinitrophenolate ligands to the metal atoms. A supramolecular network is formed via hydrogen bonding and - interactions involving both the chains and benzimidazole solvent molecules. The face-to-face and centroid- centroid distances between parallel 2,4,6-trinitrophenolate and benzimidazole rings of neighboring complexes are 3.509 (3) and 3.613 (2) Å, respectively.

Online 26 May 2007

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