摘要
合成了三种含杂芴基的双β-二酮及其铕配合物。配体及配合物的红外光谱和紫外-可见吸收光谱表明配体与Eu3+发生螯合配位。配体的荧光光谱是宽的蓝色发光谱带,属H2L*→H2L跃迁。配合物荧光光谱最佳激发波长在400～420 nm之间,且以611 nm处Eu3+的特征红光为主,半峰宽10 nm左右,单色性好。热重-差热分析分析表明配合物具有较好的热稳定性,可作为一种潜在的红光材料。
Three bis（β-diketones） with heterofluorene group were synthesized from dibenzothiophene and dibenzofuran.Their Eu3＋complexes were synthesized and characterized by IR spectrometer,UV-Visible spectrometer,TG-DTA and photoluminescence（PL）.According to luminescence spectra of complexes and ligands,the sharp and strong red emission peak at 611 nm was attributed to5D0→7F2transition from Eu3＋ion and the 450 nm wide blue band can be assigned to H2L＊→H2L of ligands.The results of TG-DTA of complexes showed that these complexes have good thermal stability and would be a promising red light material.
出处
《广东化工》
CAS
2013年第13期14-16,共3页
Guangdong Chemical Industry
基金
湖南省高校创新平台开放基金项目(09K082)
关键词
双Β-二酮
铕配合物
光致发光
红光材料
bis（β-diketone）
europium complexes
photoluminescence
red light material
