Tetra-μ-benzoato-κ(4) O:O′;κ(3) O:O,O′;κ(3) O,O′:O′-bis­[(benzoato-κ(2) O,O′)(1,10-phenanthroline-κ(2) N,N′)europium(III)] benzoic acid disolvate

The asymmetric unit of the title complex, [Eu(2)(C(7)H(5)O(2))(6)(C(12)H(8)N(2))(2)]·2C(6)H(5)COOH, contains one-half of the complex mol­ecule, the complete mol­ecule being generated by inversion symmetry, and one benzoic acid solvent mol­ecule. The two Eu(III) ions are linked by four bridging benzoate ions, with an Eu⋯Eu distance of 3.96041 (12) Å. Each Eu(III) ion is coordinated by one phenanthroline heterocycle and a bidentate benzoate ion. The irregular nine-coordinated geometry of the metal ion is composed of seven O and two N atoms. The mol­ecular structure is stabilized by intra­molecular C—H⋯O hydrogen bonds. In the crystal structure, mol­ecules are linked into chains by inter­molecular C—H⋯O hydrogen bonds along the a axis. The crystal structure is further stabilized by inter­molecular C—H⋯O and C—H⋯π inter­actions. Weak π–π inter­actions are also observed [centroid–centroid distances = 3.6962 (10)–3.6963 (10) Å].