稀土学报(英文版)
稀土學報(英文版)
희토학보(영문판)
JOURNAL OF RARE EARTHS
2003年
5期
514-518
,共5页
安保礼%龚孟濂%叶剑清%董俊萍%李明星%杨燕生
安保禮%龔孟濂%葉劍清%董俊萍%李明星%楊燕生
안보례%공맹렴%협검청%동준평%리명성%양연생
inorganic chemistry%europium complex%luminescence%lifetime%absorption spectra%rare earths
A novel organic ligand, 6-(ortho-methyl-anilino carbonyl) 2-pyridine carboxylic acid (H-o-MAP), and the corresponding europium complex, tris(6-(ortho-methyl-anilino carbonyl) 2-pyridine carboxylato) europium (Ⅲ) (Eu-o-MAP) were designed and synthesized. The results show that solid Eu-o-MAP is a conjugated complex, emitting strong red fluorescence dominantly due to a ligand-sensitizd luminescence mechanism. The lifetimes of 5D0 of Eu3+ in the complex were examined using time-resolved spectroscopic analysis, and the lifetime values were (1.50±0.01) ms for solid Eu(o-MAP)3 and (1.10±0.01) ms for 1.0×10-5 mol*L-1 Eu(o-MAP)3 ethanol solution, respectively. Thermogravimetric analysis shows that the europium complex has good thermal stability.
