Gao Zhongjun
Department of Chemistry, Jining University, Shandong 273155, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2008 Jun 7;64(Pt 7):m867. doi: 10.1107/S1600536808016139.
In the mol-ecule of the title compound, [Sn(C(6)H(5))(2)(C(6)H(5)N(2)O(2))(2)], two O and one N atoms from the two 5-methyl-pyrazine-2-carboxyl-ate ligands and one C atom of a phenyl group form a distorted square-planar arrangement in the equatorial plane around the Sn atom, while the distorted octa-hedral coordination is completed by an N atom of one of the 5-methyl-pyrazine-2-carboxyl-ate ligands and a C atom of the other phenyl group in the axial positions. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers.
在标题化合物[Sn(C₆H₅)₂(C₆H₅N₂O₂)₂]的分子中,来自两个5-甲基吡嗪-2-羧酸酯配体的两个O原子和一个N原子以及一个苯基的一个C原子在围绕Sn原子的赤道平面上形成一个扭曲的平面正方形排列,而扭曲的八面体配位由轴向位置上的一个5-甲基吡嗪-2-羧酸酯配体的一个N原子和另一个苯基的一个C原子完成。在晶体结构中,分子间的C—H⋯O氢键将分子连接成中心对称的二聚体。