项目名称: 三聚氰胺羧酸衍生物稀土配位聚合物分子结构与发光性能的构效关系
项目编号: No.21501051
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: 李玉鑫
作者单位: 黑龙江大学
项目金额: 25万元
中文摘要: 有机稀土发光材料是研究和应用最为广泛的有机光致发光材料之一。该材料具有Stoke位移大、荧光寿命长、发射频带窄等优点,易于检测和应用。然而,该材料也存在量子效率低、发光强度较弱和热稳定性差等问题。导致这一问题的主要原因是有机稀土配合物结构与发光性能之间的构效关系尚不明确,使得难以设计出具有高发光强度、高荧光效率、特殊分子拓扑结构的有机稀土配合物或配位聚合物。.本项目拟采用不同分子尺寸的三聚氰胺羧酸衍生物为配体,合成出具有不同维度、不同拓扑结构的一元、二元和三元稀土配合物和配位聚合物,并测试其荧光性能。根据合成的配合物或配位聚合物的分子结构和发光性能,进一步研究其构效关系,解释分子结构对于发光性能的影响。. 该项研究如能预期完成,将对羧酸稀土配合物的发光机制、构效关系以及稀土离子间的能量传递规律研究有所贡献,进一步丰富羧酸稀土配合物的结构和光化学理论。
中文关键词: 羧酸配体;稀土配合物;可调发光;白光发射;构效关系
英文摘要: Organic lanthanide light materials is one of the most studied and applied organic molecular light materials. It possesses large Stoke shift, long luminescent lifetime, and narrow emission band. However, it also has several disadvantages, such as low quantum yield, low intensity and bad thermal stability. The reason is that the structure-function relationship of organic lanthanide light materials is not clear, which leads to the hardness to design a material with high intensity and efficiency..This research would synthesize a series of tripolycyanamide carboxylic lanthanide coordination (polymers) with distinct dimension and topology. The luminescent property would be tested. The structure-function relationship would also be studied and explained.. If this proposal is realized, it would contribute to the study of carboxylic coordination on luminescent mechanism, structure-function relationship, and energy transmitted regularity between distinct lanthanide ions. This research would further enrich the knowledge on structural and photochemisty of carboxylic lanthanide complexes.
英文关键词: carboxylic ligand;lanthanide coordination;tunable luminescence;white-lighting emission;structure-function relationship