Acta Cryst. (2009). E65, m1240-m1241  [ doi:10.1107/S1600536809037751 ]

Tetrakis(-4-methoxybenzoato)bis[(4-methoxybenzoato)(1,10-phenanthroline)terbium(III)]

Z.-H. Gao, H. Wang, J.-Y. He and R.-F. Wang

Abstract: In the title dinuclear complex, [Tb₂(C₈H₇O₃)₆(C₁₂H₈N₂)₂], each Tb^III ion is eight-coordinated by two N atoms from a 1,10-phenanthroline ligand and six O atoms from the carboxylate groups of five 4-methoxybenzoate ligands in a distorted square-antiprismatic geometry. All six 4-methoxybenzoate ligands act in a bidentate mode, two coordinating to one Tb center each and the other four bridging two Tb centers [TbTb separation = 4.3144 (6) Å]. In the crystal, intermolecular - interactions between the aromatic rings of 1,10-phenanthroline and 4-methoxybenzoate ligands [centroid-centroid distance = 3.742 (9) Å] link two molecules into a centrosymmetric dimer. Weak intermolecular C-HO hydrogen bonds help to consolidate the crystal packing.

Online 26 September 2009

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