摘要
实验合成了单核铕-樟脑酸-1,10-菲咯啉三元配合物和La、Y掺杂异核铕-樟脑酸-1,10-菲咯啉三元配合物。通过配位滴定、元素分析和红外光谱等测试,确定其组成为RE2(CA)3(phen)2(RE为Eu、La和Y;CA为樟脑酸;phen为1,10-菲咯啉);通过三维荧光光谱图确定其最佳激发波长为330.0 nm,即在330.0 nm激发光下的发射光谱图中均显示出Eu3+离子5D0→7F0(579nm),5D0→7F1(594 nm)和5D0→7F2(612 nm)等三条特征谱线,其中5D0→7F2(612 nm)为最强跃迁峰。荧光强度变化研究表明,适量镧和钇离子的掺杂并没有降低铕离子的荧光强度,说明镧和钇对铕离子荧光发射有敏化作用。
The complexes of europium with camphoric acid and 1,10 phenanthroline and lanthanum and yttrium doped complexes have been synthesized and characterized by elemental analysis and IR. The compositions of the complexes have been comfrmed to be RE2（CA）3 （phen）2 （RE;Eu, La, Y; CA ： camphor acid; phen. 1, 10-phenanthroline）. The three-dimensional fluorescence spectra show that the optimum excitation line is 330.0 nm, at which the emissionspectrum show the characteristic spectrum of europium and produces three lines, namely ^5D0→^7F0（579 nm）, ^5D0→^7F1（594 nm）,^5D0→^7F2（612 nm）, in which ^5D0→^7F2（612 nm） is the strongest. The changes in fluorescence intensity indicate that the fluorescence intensity of europium does not reduce after doping with lanthanum and yttrium, showing that lanthanum and yttrium have sensitization effect on the fluorescence emission of europium.
出处
《化学世界》
CAS
CSCD
北大核心
2009年第12期708-711,共4页
Chemical World
基金
国家自然科学基金资助项目(20161001)
内蒙古自治区自然科学基金资助项目(200508010206)资助
关键词
镧
钇
铕
樟脑酸
1
10-菲咯啉
荧光性质
lanthanum
yttrium
Eu
camphoric acid
1,10-phenanthroline
fluorescence property
