稀土多酸阴离子为模板剂的炔银簇纳米材料的设计合成及发光特性

项目名称： 稀土多酸阴离子为模板剂的炔银簇纳米材料的设计合成及发光特性

项目编号： No.21271034

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 高广刚

作者单位： 长春师范大学

项目金额： 75万元

中文摘要： 含稀土离子的多酸阴离子通常具有优异的发光性能，有机炔银与银盐通过自组装反应形成的银簇类化合物也可具有良好的发光特性；本项目将这两大类化合物有机地结合起来，利用含稀土的多酸阴离子作为模板剂与炔银及银盐通过自组装反应，将首次设计合成具有复合发光性能的多酸基高核炔银簇纳米材料。系统深入地研究合成中的模板剂、炔基配体、辅助配体及pH值等诸多因素对最终产物的影响，总结该类合成反应的最佳条件。通过改变模版剂中的稀土离子或调整壳层炔银簇的组成，获得具有一定预期发光性能的多核贵金属簇材料；该材料受到不同波长光源激发时，可发射出不同的荧光或增强的荧光信号，进而在多输出信号光存储及光控逻辑门单元材料中得到应用。功能性多酸基炔银簇材料的合成，不仅可以丰富炔银簇化合物的种类，还为其在新型光存储功能材料领域的潜在应用提供理论和实验依据。

中文关键词： 多金属氧酸盐；稀土发光；炔银簇；单晶结构；

英文摘要： Polyoxometalate anions containing lanthanide cations usually display excellent luminescent properties, while the silver clusters (SCs) obtained by self-assembly of silver ethynides and silver salts also present special luminescent properties. To combine these two kinds of composites, using lanthanide-polyoxometalate (Ln-POM) anions as templates, together with suitable silver ethynides and silver salts, zero-dimensional nanoscaled multinuclear clusters, Ln-POM-SCs, can be synthesized by self-assembly which present combined luminescent properties for the first time among SCs compounds. It will be investigated systematicly for the effect of Ln-POM templates,ethynide ligands,assistant ligands and pH on the final formation of Ln-POM-SCs products. The best reaction condition should be achieved by a large number of experiments.Ln-POM-SCs may present anticipated luminescence by selection of different lanthanide ion or modulation of component of shell silver ethynide clusters. Upon different excitaions, Ln-POM-SCs may emit emissions with different wavelengths or intensities, which can be potentially used in multi-output optical storage or light-induced logic gate materials. The exploration of functional Ln-POM-SCs composites not only enriches the family of silver ethynide clusters, but also provide theoretical and exper

英文关键词： Polyoxometalate；Rare earth fluorescence；Silver(I)-alkynyl cluster；Single-crystal structure；