title: Tetra-μ-benzoato-κO:O';κO:O,O';κO,O':O'-bis-[(benzoato-κO,O')(1,10-phenanthroline-κN,N')europium(III)] benzoic acid disolvate.
abstract: 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 mol-ecule, the complete mol-ecule being generated by inversion symmetry, and one benzoic acid solvent mol-ecule. 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 mol-ecular structure is stabilized by intra-molecular C-H⋯O hydrogen bonds. In the crystal structure, mol-ecules are linked into chains by inter-molecular C-H⋯O hydrogen bonds along the a axis. The crystal structure is further stabilized by inter-molecular C-H⋯O and C-H⋯π inter-actions. Weak π-π inter-actions are also observed [centroid-centroid distances = 3.6962 (10)-3.6963 (10) Å].
authors.forename: Ping Howe
authors.initials: PH
authors.lastname: Ooi
authors.forename: Siang Guan
authors.initials: SG
authors.lastname: Teoh
authors.forename: Chin Sing
authors.initials: CS
authors.lastname: Yeap
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun