项目名称: 碱土金属离子协同增强稀土离子发光配位聚合物的结构设计和光物理性质
项目编号: No.21501061
项目类型: 青年科学基金项目
立项/批准年度: 2016
项目学科: 数理科学和化学
项目作者: 陈砚美
作者单位: 黄冈师范学院
项目金额: 20万元
中文摘要: 围绕碱土金属离子的加入对稀土配合物荧光的影响,针对目前碱土-稀土杂核配合物的发光机理研究尚不明确的现状,本申请人将深入展开碱土-稀土杂核发光配合物的研究工作。本项目将选择五个具有敏化稀土发光的配体,通过控制反应体系的酸碱度、反应温度和溶剂,采用常规溶液法、水热(或溶剂热)法、液面扩散法等,合成具有较好发光性能的碱土-稀土杂核发光配合物。通过分析配合物的结构和荧光性能,研究碱土-稀土杂核配合物的结构与荧光性能之间的构效关系。分析碱土金属离子在影响能量传递因素中的作用,并研究杂核配合物的发光机理。结合具有较好发光性能的稀土配合物和能增强配体发光的碱土金属离子,设计构筑碱土金属离子协同增强稀土离子发光的杂核配位聚合物、并研究碱土金属离子对影响能量传递因素的作用,对新型稀土配合物光致发光材料的开发是一项非常有意义的工作。
中文关键词: 协同作用;稀土金属配合物;杂核金属配合物;荧光性能
英文摘要: Based on the fact that the inclusion of alkaline earth metal ions into the rare earth complexes can influence the luminescent properties of rare earth complexes, and the emitting mechanism of alkaline earth - rare earth heterometal complexes is not clear yet, this project will focus on the alkaline earth-rare earth heterometal luminescent complexes. A series of alkaline earth – rare earth heterometal complexes with good luminescent performance will be synthesized by choosing five ligands with sensitization of rare earth luminescence, by controlling the pH values, temperature and solvent of reaction systems, and by using the conventional solution method, hydrothermal (or solventhermal) technique, surface diffusion approach. By analysis the structure and fluorescence properties of complexes, we will study the relationship between the structure and fluorescence properties of alkaline earth-rare earth heterometal complexes. By analyzing the affects factor of alkaline earth metal ions on the energy transfer, we will study the photoluminescent mechanism of heteronuclear complexes. This research is of great significance for developing new rare earth coordination photoluminescence materials, due to the study of the synergistic effect of rare earth elements and alkaline-earth metal ions on the photoluminescent properties and the research of the affect factors on energy transfer mechanism of the alkaline earth metal ions.
英文关键词: Synergistic effect;Rare earth metal complexes;Hetermetal complexes;Flourescence properties