Ooi Ping Howe, Teoh Siang Guan, Yeap Chin Sing, Fun Hoong-Kun
Acta Crystallogr Sect E Struct Rep Online. 2010 May 15;66(Pt 6):m644-5. doi: 10.1107/S1600536810016788.
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].
标题配合物[Tb₂(C₇H₅O₂)₆(C₁₂H₈N₂)₂]·2C₇H₆O₂的不对称单元由位于晶体学反演中心的半个配合物分子和一个苯甲酸溶剂分子组成。两个Tb(III)离子通过四个桥连苯甲酸根离子相连，Tb⋯Tb距离为3.9280 (6) Å。此外，每个Tb(III)离子由一个菲咯啉杂环和一个双齿苯甲酸根离子配位。Tb(III)离子不规则的九配位几何构型由七个O原子和两个N原子组成。分子结构通过分子内C-H⋯O氢键得以稳定。在晶体结构中，分子通过分子间C-H⋯O氢键沿a轴连接成链。晶体结构通过分子间C-H⋯O和C-H⋯π相互作用进一步稳定。还观察到弱的π-π相互作用[质心-质心距离 = 3.6275 (14)-3.6604 (14) Å]。
