Li Yun-Xia, Zhang Bi-Song, Zheng Miao
College of Pharmaceutics and Material Engineering, Jinhua College of Profession and Technology, Jinhua, Zhejiang 321007, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2011 Jul 1;67(Pt 7):m879-80. doi: 10.1107/S1600536811021064. Epub 2011 Jun 11.
The asymmetric unit of title compound, [Cd(C(9)H(6)NO(2))(2)(C(10)H(8)N(2))(2)]·0.5C(10)H(8)N(2)·2H(2)O, consists of one complex mol-ecule, one half of an uncoordinated 2,2'-bipyridine mol-ecule and two solvent water mol-ecules. The uncoordinated 2,2'-bipyridine mol-ecule is located on a center of symmetry. Within the complex mol-ecule, the Cd(II) atom is coordinated by four N atoms from two 2,2'-bipyridine ligands and three O atoms from two 1H-indole-2-carboxyl-ate anion ligands, completing a distorted CdN(4)O(3) penta-gonal bipyra-mid. The mol-ecules are assembled into one-dimensional chains along the [100] direction through classical hydrogen bonds (O-H⋯N, N-H⋯O and O-H⋯O). The resulting chains are further connected into two-dimensional supra-molecular layers parallel to the (110) direction by inter-molecular classical hydrogen bonds (N-H⋯O and O-H⋯O) from adjacent chains. A three-dimensional supra-molecular network is formed via interlayer and O-H⋯O hydrogen bonds.
标题化合物[Cd(C₉H₆NO₂)₂(C₁₀H₈N₂)₂]·0.5C₁₀H₈N₂·2H₂O的不对称单元由一个配合物分子、一个未配位的2,2'-联吡啶分子的一半和两个溶剂水分子组成。未配位的2,2'-联吡啶分子位于对称中心。在配合物分子中，Cd(II)原子由来自两个2,2'-联吡啶配体的四个N原子和来自两个1H-吲哚-2-羧酸根阴离子配体的三个O原子配位，形成一个扭曲的CdN₄O₃五角双锥。分子通过经典氢键（O-H⋯N、N-H⋯O和O-H⋯O）沿[100]方向组装成一维链。所得的链通过相邻链间的分子间经典氢键（N-H⋯O和O-H⋯O）进一步连接成平行于(110)方向的二维超分子层。通过层间和O-H⋯O氢键形成三维超分子网络。
