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

In the title dinuclear complex, [Tb(2)(C(8)H(7)O(3))(6)(C(12)H(8)N(2))(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 [Tb⋯Tb separation = 4.3144 (6) Å]. In the crystal, inter­molecular π–π 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—H⋯O hydrogen bonds help to consolidate the crystal packing.