四川大学学报（自然科学版）2012，Vol.49Issue(4)：866-870,5.DOI:10.3969/j.issn.0490-6756.2012.04.028
吡啶氮氧化物的三重态能级对其稀土铕、铽配合物的荧光性能的影响
Influence of the triplet state levels on the luminescent properties of the terbium( Ⅲ ) and europium( Ⅲ ) complexes of pyridine nitrogen oxides
摘要
Abstract
The emission parameters for Tb3+and Eu3 + complexes with 6-methyl-2-pyridine N-oxide(L1), N,N'-BIS(6-metyl-2-pyridinecarboxylamide-N-Oxide)-l,2-ethane(L2) ,N,N'-BIS(6-metyl-2-pyridinecar-boxylamide-N-Oxide)-l ,2-Propane(L3)and the excited triplet states were determined. It was found that L1 , L2, and L3 strongly sensitize Eu3+ luminescence, while the ligands sensitize Tb3+ luminescence very weakly. The intensity of the sensitized luminescence for Eu3+ increases in the following order: L1>>L2 >L3. It was explained by the relative energy gap between the lowest triplet energy level of the ligands (T) and 5D1 of Tb3+ or Eu3+ that the order of the luminescent intensity for Eu3+ complexes with the ligands and the ligands sensitize Tb3+ weakly. When 1000 cm-1<ΔE(T-5D1)<2000 cm-1 , the luminescent intensity of the Eu3+ complex is stronger. For Tb3+ , when AE is less than 1500cm -1 , the emitted characteristic fluorescence is very weak, especially when A￡ is close to 1500 cm-1 , the emitted characteristic fluorescence is close to zero.关键词
稀土钆配合物/吡啶氮氧化物/磷光光谱/三重态能级Key words
Gd3+complexes/ pyridine nitrogen oxide/ phosphorescence spectrum/triplet state levels分类
化学化工引用本文复制引用
王亚玲,苟如虎,杨汝栋,闫兰..吡啶氮氧化物的三重态能级对其稀土铕、铽配合物的荧光性能的影响[J].四川大学学报（自然科学版）,2012,49(4):866-870,5.基金项目
国家自然科学基金(29571013) （29571013）
甘肃省省青年科技基金计划(1107RJYP047) （1107RJYP047）
甘肃省教育科学"十一五"规划2010年度规划课题(GS(2010)GX053)成果 （GS(2010）
合作民族师范高等专科学校校长基金项目(08-24) （08-24）
甘肃民族师范学院基金项目(10-04) （10-04）
