Zhu Yi, Zhang Ming-Xing, Yang Shan-Shan, Xiao Feng, Zhang Xiao-Ping, Gao Yuan-Yuan, Li Bing-Jie, Huang Kun-Lin
College of Life Science, and College of Chemistry, Chongqing Normal University, Chongqing 400047, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2013 Mar 28;69(Pt 4):m232-3. doi: 10.1107/S1600536813007733. Print 2013 Apr 1.
The asymmetric unit of the title Pb-based coordination polymer, [Pb2(C24H16N2O8)(H2O)2] n , consists of one Pb(II) cation, half of a 4,4'-(1,4-phenyl-ene)bis-(2,6-dimethyl-pyridine-3,5-di-carb-oxyl-ate (L (4-)) ligand and one coordinating water mol-ecule. The centers of the benzene ring of the ligand and the four-membered Pb/O/Pb/O ring are located on centers of inversion. The Pb(II) ion is coordinated in form of a distorted polyhedron by seven O atoms from four separate L (4-) ligands and by one water O atom. The PbO7 polyhedra share O atoms, forming infinite zigzag [PbO4(H2O)] n chains along [100] that are bridged by L (4-) ligands, forming a two-dimensional coordination network parallel to (001). O-H⋯O hydrogen bonds involving the water mol-ecule are observed.
标题为[Pb2(C24H16N2O8)(H2O)2] n的铅基配位聚合物的不对称单元由一个Pb(II)阳离子、半个4,4'-(1,4-亚苯基)双-(2,6-二甲基吡啶-3,5-二羧酸酯 (L (4-))配体和一个配位水分子组成。配体苯环的中心和四元Pb/O/Pb/O环位于对称中心上。Pb(II)离子由来自四个独立L (4-)配体的七个O原子和一个水分子O原子以扭曲多面体的形式配位。PbO7多面体共享O原子,沿着[100]形成无限之字形[PbO4(H2O)] n链,这些链由L (4-)配体桥连,形成平行于(001)的二维配位网络。观察到涉及水分子的O-H⋯O氢键。