摘要
The studing results on the characteristics of the energy migratiou of excited state by fluorescent probe method are reported. The energy migration is of ligation between Eu3+,Tb3+and AQ in acetone solution.It is found that the excited state ligation is formed between AQ and Eu3+, Tb3+ in ace-tone solution. There is obvious energy migration phenomenon between ligand AQ and centre ions Eu3+, Tb3+. AQ migrates the absorbed photoenergy to Eu3+, Tb3+ and made Eu 3+, Tb3+ emit character fiuorescence, and the fluorescence intensity is increasing greatly. In addition, through studing the effect of different solvents to AQ:Eu3+ system, it is found that if the solvent polarity is different, the effect to energy migration is different. The solvent with weak polarity is benifical to electric dipole transition migration of Eu3+, and the solvent with strong ploarity is favorable magnetic dipole transition migration.
The studing results on the characteristics of the energy migratiou of excited state by fluorescent probe method are reported. The energy migration is of ligation between Eu3+,Tb3+and AQ in acetone solution.It is found that the excited state ligation is formed between AQ and Eu3+, Tb3+ in ace-tone solution. There is obvious energy migration phenomenon between ligand AQ and centre ions Eu3+, Tb3+. AQ migrates the absorbed photoenergy to Eu3+, Tb3+ and made Eu 3+, Tb3+ emit character fiuorescence, and the fluorescence intensity is increasing greatly. In addition, through studing the effect of different solvents to AQ:Eu3+ system, it is found that if the solvent polarity is different, the effect to energy migration is different. The solvent with weak polarity is benifical to electric dipole transition migration of Eu3+, and the solvent with strong ploarity is favorable magnetic dipole transition migration.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1997年第4期370-375,共6页
Acta Physico-Chimica Sinica
关键词
蒽醌
稀土离子
能量转移
荧光光谱
激发光谱
Fluorescent probe, Energy migration, Fluorescent spectrum, Excitation spectrum,Evitation ligation
