物理化学学报 >> 1997, Vol. 13 >> Issue (04): 370-375.doi: 10.3866/PKU.WHXB19970417

研究简报 上一篇    下一篇

蒽醌与稀土离子间的能量转移研究

张长拴,江鸿,李洁,李铁津   

  1. 郑州大学化学系,郑州 450052
  • 收稿日期:1996-08-26 修回日期:1996-11-21 发布日期:1997-04-15
  • 通讯作者: 张长拴

The Study to the Energy Migration between Anthraquinone and Rare-earth Ion

Zhang Chang-Shuan,Jiang Hong,Li Jie,Li Tie-Jin   

  1. Department of Chemistry,Zhengzhou University,Zhengzhou 450052|Department of Chemistry,Jilin University,Changchun 130024
  • Received:1996-08-26 Revised:1996-11-21 Published:1997-04-15
  • Contact: Zhang Chang-Shuan

关键词: 荧光探针, 能量转移, 荧光光谱, 激发光谱, 激发络合物

Abstract:

The studing results on the characteristics of the energy migration 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 acetone 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 fluorescence, 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.

Key words: Fluorescent probe, Energy migration, Fluorescent spectrum, Excitation spectrum, Excitation ligation