硅烷改性铕配合物的制备与发光性能研究  

Investigation of preparation and luminescent of europium complexes modified by silane

作　　者：徐青景 王砥[1,2] 任世学[1,2] 方桂珍[1,2] 

机构地区：[1]东北林业大学材料科学与工程学院,哈尔滨150040 [2]东北林业大学生物质材料科学与技术教育部重点实验室,哈尔滨150040

出　　处：《功能材料》2015年第23期23139-23143,共5页Journal of Functional Materials

基　　金：中央高校基本科研业务费专项资金资助项目(DL11BB01);中央高校基本科研业务费专项资金资助项目(2572014EB02-02);黑龙江省青年科学基金资助项目(QC2012C027)

摘　　要：荧光稀土配合物具有良好的荧光特性,但是简单的配合物由于较低的光、热稳定性而限制了其应用。以氨丙基硅烷偶联剂与邻苯二甲酰氯反应制备改性配体,并与铕离子进行配位制备改性稀土配合物,通过天线效应敏化稀土离子发光,从而实现能量传递和最终的材料发光。考察了不同条件下对稀土配合物的产率和荧光发射强度的影响;测量了配合物的红外光谱、紫外光谱,并推测了配合物的稳定结构;通过荧光光谱测定了配合物的荧光发射强度。结果表明,改性配合物表现出了更强的铕离子的荧光特征峰,说明了铕离子的第一激发态能级和改性配体的三重态能级之间有更好的匹配。The rare earth ternary complexes have good fluorescence properties,but the lower optical and thermal stability of simple complexes would limit their application. In this paper the modified ligands were combined by o-phthaloyl chloride and aminopropyl silane coupling agent,and the modified complexes were prepared by the coordination between the modified ligands and Eu cations. Eu cations would emit luminescence with antenna effect,which could transfer energy and promote the luminescence of the modified complexes. The influence of the different reaction condition on the yield of reaction and the fluorescence emission intensity were investigate. The stable structure of complexes were inferred with FTIR and UV spectra and fluorescence emission intensity. The results showed that the complexes modified by silane had the stronger fluorescence emission intensity,which indicated that a better match exist between the first excited energy level of Eu3 +and the triplet energy level of modified ligand.

关 键 词：硅烷改性配体 铕配合物 荧光性质 

分 类 号：O614.33[理学—无机化学] O641.4[理学—化学]