Department of Chemistry, Shantou University, Shantou, Guangdong Province, 515063 China.
Inorg Chem. 2010 Oct 18;49(20):9191-9. doi: 10.1021/ic100610t.
Solvothermal reactions of cadmium chloride and 1,2,4-triazole (Htrz) in different solvent mediums have successfully synthesized five ternary Cd(II)/trz/Cl(-) complexes, [Cd(trz)Cl]·H(2)O (1·H(2)O), [Cd(4)(trz)(5)Cl(3)(H(2)O)]·(THF)(1.25)·(H(2)O)(2.5) (2·1.25THF·2.5H(2)O), [Cd(3)(trz)(2)Cl(MeCN)] (3), [Cd(3)(trz)(4)Cl(2)]·(H(2)O)(0.5) (4·0.5H(2)O), and [Cd(4)(trz)(6)Cl(2)(H(2)O)(0.5)]·(H(2)O)(3.5) (5·3.5H(2)O). All of these five coordination polymers have three-dimensional (3-D) structural features, which are constructed by distinct substructures including clusters, chains, rings, and even 3-D frameworks. In all cases, 1,2,4-triazolate adopts a μ(1,2,4) bridging mode, and chloride ions display a μ(2), μ(3), μ(4) bridging mode, respectively, which makes the structural diversity in the assembling system, for example, μ(4)-Cl and cadmium triazolate, build up an unprecedented tetranuclear cluster Cd(4)(trz)(8)Cl in 2. All of the materials exhibit intense blue fluorescent emission and high thermal stability, wherein 1 presents an interesting guest-responsive photoluminescent property.
水热条件下，氯化镉与 1,2,4-三氮唑（Htrz）在不同溶剂中反应，成功合成了五个三元 Cd(II)/trz/Cl(-)配合物，分别为[Cd(trz)Cl]·H(2)O（1·H(2)O）、[Cd(4)(trz)(5)Cl(3)(H(2)O)]·(THF)(1.25)·(H(2)O)(2.5)（2·1.25THF·2.5H(2)O）、[Cd(3)(trz)(2)Cl(MeCN)]（3）、[Cd(3)(trz)(4)Cl(2)]·(H(2)O)(0.5)（4·0.5H(2)O）和[Cd(4)(trz)(6)Cl(2)(H(2)O)(0.5)]·(H(2)O)(3.5)（5·3.5H(2)O）。所有这些配位聚合物都具有三维（3-D）结构特征，由不同的子结构组成，包括簇、链、环，甚至 3-D 框架。在所有情况下，1,2,4-三氮唑都采用 μ(1,2,4)桥连模式，氯离子则分别采用 μ(2)、μ(3)、μ(4)桥连模式，这使得组装体系的结构多样性，例如 μ(4)-Cl 和镉三氮唑，构建了一个前所未有的四核簇Cd(4)(trz)(8)Cl在 2 中。所有材料都表现出强烈的蓝色荧光发射和高热稳定性，其中 1 呈现出有趣的客体响应光致发光性质。
