钕三元配合物-聚氨酯发光材料的合成与荧光性能研究  

Synthesis and Fluorescence Property of Nd^(3+) Ternary Complex-Polyurethane Photoluminescence Material

作　　者：邱凤仙[1] 史成亮[1] 杨冬亚[1] 笪祖林[1] 

机构地区：[1]江苏大学化学化工学院,江苏镇江212013

出　　处：《中国稀土学报》2008年第5期557-560,共4页Journal of the Chinese Society of Rare Earths

基　　金：中国博士后科学基金(20070420973);江苏省博士后科研资助计划项目(0602037B);江苏大学高级人才基金(06JDG015和06JDG076)

摘　　要：在无水乙醇中,以1,10-邻菲口罗啉和酒石酸为配体,合成了钕-酒石酸-邻菲口罗啉三元稀土配合物;利用三元稀土配合物中的两个-OH作为多元醇的活性基团,以二丁基二月桂酸锡为催化剂,与具有活性基团-NCO的甲苯-2,4-二异氰酸酯反应制备新的键合型含稀土及高分子的发光材料。通过元素分析、EDTA配位滴定分析、红外、紫外、热分析和荧光光谱分析,测定了三元配合物及发光材料的组成、结构、热稳定性和发光性能。结果表明,酒石酸中的羧基以桥联方式与钕发生配位,phen与稀土离子之间的能量传递是主要过程,配合物的最大吸收与phen相比略有红移;在207 nm波长激发下,三元配合物及发光材料在440和527 nm处均能发出较强的特征荧光,预计在新型有机电致发光器件(OLEDS)和发光油漆方面有着广阔的应用前景。ANd^3＋-H2L-phen ternary complex with ligands 1,10-phenanthroline （phen） and dl-tartatle acid （H2L） in the pure ethanol solution was synthesized. The - OH funetional group in the ternary complex was used to react with the - NCO functional group of toluene diisoeyanate （TDI） in the presence of catalyzer dibutyltin dilaurate, and the novel bonded photoluminescenee material containing rare-earth and polymer polyurethane was synthesized. The material was charaeterized by the elemental analysis, coordination titration analysis, FT-IR, UV spectroscopy, thermal gravimettle analysis and fluorescence spectroscopy in order to describe the constitute, structure, heat stability and fluorescence property. The results showed that carboxyl functional group in H2L bonded with neodymium and the energy transfer process occurred mainly from phen to the central rare-earth ion. The maximal absorption wavelength of complex shifted to red comparing with phen. The synthesized ternary complex and photoluminescence material emited characteristic fluorescence at 440 and 527 nm in the emission wavelength 207 nm, and it would be used as new organic light-emitting devices （ OLEDS ） and luminescence paint.

关 键 词：三元配合物 荧光光谱 稀土 

分 类 号：O614.44[理学—无机化学]