Acta Cryst. (2008). E64, m1458  [ doi:10.1107/S1600536808033886 ]

Bis(-2-hydroxybenozato)-³O,O':O';³O:O,O'-bis[(2-hydroxybenozato-²O,O')(1,10-phenanthroline-²N,N')cadmium(II)]

Q.-Y. Shi, Z.-C. Li, Z.-S. Cheng, J.-B. Tan and J.-L. Liu

Abstract: The dinuclear title compound, [Cd₂(C₇H₅O₃)₄(C₁₂H₈N₂)₂], is located on a crystallographic rotation twofold axis. The two Cd^II ions are connected by two tridentate bridging 2-hydroxybenzoate anions. Each Cd^II ion is seven-coordinated by five O atoms from three 2-hydroxybenzoate ligands and two N atoms from 1,10-phenanthroline. The 2-hydroxybenzoate molecules adopt two kinds of coordination mode, bidentate chelating and tridentate bridging-chelating. Intramolecular hydrogen bonds between hydroxy and carboxylate groups from 2-hydroxybenzoate groups and - stacking interactions between parallel 1,10-phenanthroline ligands [centroid-centroid distances = 3.707 (3) and 3.842 (3) Å] are observed. Furthermore, adjacent benzene rings from 2-hydroxybenzoate ligands are involved in - interactions with interplanar distances of 3.642 (3) Å, thereby forming a chain along the a axis direction.

Online 25 October 2008

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