title: Tetra-μ-benzoato-κO:O';κO:O,O';κO,O':O'-bis-[(benzoato-κO,O')(1,10-phenanthroline-κN,N')terbium(III)] benzoic acid disolvate.
abstract: The asymmetric unit of the title complex, [Tb(2)(C(7)H(5)O(2))(6)(C(12)H(8)N(2))(2)]·2C(7)H(6)O(2), consists of one-half of the complex mol-ecule, which lies on a crystallographic inversion centre, and one benzoic acid solvent mol-ecule. The two Tb(III) ions are linked by four bridging benzoate ions, with a Tb⋯Tb distance of 3.9280 (6) Å. Additionally, each Tb(III) ion is coordinated by one phenanthroline heterocycle and a bidentate benzoate ion. The irregular nine-coordinated geometry of the Tb(III) 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 along the a axis by inter-molecular C-H⋯O hydrogen bonds. 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 = 3.6275 (14)-3.6604 (14) 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