摘要
以1,3,5-苯三甲酸(H3BTC)为配体,采用溶液沉淀法合成了均苯三甲酸铕二元发光配合物Eu(BTC)·2H2O(1),其结构经IR,元素分析和等离子体原子发射光谱(ICP)表征。荧光光谱分析结果表明,1在紫外光照射下,发出Eu3+的特征红光,其中电偶极跃迁(5D0→7F2,613nm)的发射最强;同时1还具有相对较长的衰变寿命(r=1.93ms)和较好的热稳定性(分解温度256℃-630℃)。
The photoluminescence binary Eu (Ⅲ) complex with trimesic acid ligand, Eu (BTC) · 2H2O(1), was syntheiszed by solution precipitation. The structure was characterized by IR, elementary analysis and ICP. The results from fluorescence spectroscopy showed that 1 exhibited strong red fluorescence under ultraviolet light and the electronic dipole transition (5D0→7F2 ) around 613 nm was the strongest emission. In the mean time, 1 had comparatively longer emission lifetime(τ= 1.93 ms) and very good thermal stability( decomposition at 256℃ -630℃ ).
出处
《合成化学》
CAS
CSCD
北大核心
2011年第5期626-628,631,共4页
Chinese Journal of Synthetic Chemistry
基金
国家高技术发展基金资助项目(2009AA8043022)
关键词
铕配合物
光致发光
热稳定性
合成
荧光性质
Eu(Ⅲ) complex
photoluminescence
thermal stability
synthesis
fluorescence property