Hydrothermal Synthesis, Crystal Structures, and Catalytic Properties of Three Coordination Polymers Containing Flexible Bis(benzimidazole) and Dicarboxylate Ligands
作者:Ju-Meng Hu、Yong-Guang Liu、Kristof Van Hecke、Guang-Hua Cui
DOI:10.1002/zaac.201500288
日期:2015.11
two 1,2-chdc2– ligands connect two neighboring Cd atoms to form a dinuclear [Cd2(1,2-chdc)2] subunit, which is further linked by L1 ligands to construct a 1D ladder-like chain. Compound 2 exhibits a 2D (4,4) coordination network with 44.62} topology, whilst compound 3 shows a 1D helical chain structure. The fluorescence, UV/Vis diffuse reflection spectra, and catalytic properties of complexes 1–3
三种金属有机配位聚合物,即[Cd(L1)(1,2-chdc)]·2H2O}n(1)、[Ni(L2)(1,2-chdc)]·H2O}n(2 ), 和 [Cd(L2)(npht)]n (3) [L1 = 1,2-bis(2-methylbenzimidazol-1-ylmethyl)benzo, L2 = 1,2-bis(5,6-dimethylbenzimidazol-1) -ylmethyl)苯, 1,2-H2chdc = 1,2-环己烷二甲酸, H2npht = 3-硝基邻苯二甲酸] 在水热条件下合成, 并通过单晶 X 射线衍射方法、红外光谱、TGA 和元素进行结构表征分析。在化合物 1 中,两个 1,2-chdc2– 配体连接两个相邻的 Cd 原子形成一个双核 [Cd2(1,2-chdc)2] 亚基,该亚基通过 L1 配体进一步连接以构建一维梯状链。化合物 2 显示出具有 44.62}