应用化学 ›› 1988, Vol. 0 ›› Issue (3): 9-14.

• 研究论文 • 上一篇    下一篇

苯甲酸铽络合物发光性能的研究

寿涵森, 叶建平, 虞群   

  1. 中国科学院感光化学研究所, 北京
  • 收稿日期:1987-03-09 修回日期:1987-07-11 出版日期:1988-06-10 发布日期:1988-06-10

STUDIES ON LUMINESCENCE OF BENZOIC ACID-TERBIUM COMPLEXES

Shou Hansen, Ye Jianping, Yu Qun   

  1. Istitute of Photographic Chemistry, Academia Siaica
  • Received:1987-03-09 Revised:1987-07-11 Published:1988-06-10 Online:1988-06-10

摘要: 本文应用紫外、红外吸收光谱、稳态和时间分辨的荧光光谱研究了苯甲酸及它的(邻、间、对)羟基衍生物与铽离子的络合物的发光性能和能量传递关系;探讨了羧酸的结构、络合物的形成,以及溶剂、pH值对发光强度和能量传递的影响.

关键词: 稀土络合物, 铽, 发光, 能量传递, 结构与性能关系

Abstract: A new type lumincscent material, benzoic acid-terbium complexes are investigated by absorption, infrared, fluorescence and timc-resolved fluorescence spectroscopy. In the presence of Tb ion the fluorescence intensitics of benzoic acid (At) and its derivatives, 4-hydroxylbcnzoic acid (A2), 3-hydroxylbenzoic acid (A3), 2-hydroxylbenzoic acid(A4), markedly decreassed; and the fluorescence lifetime of acids remained unchanged. It is a typical example of static quenching process. The fluorescence intensity of acid-terbium complexes changes dramatically according to their structure, bonding strength and intramolecular encrgy transfer efficiency. The influences of solvents and pH value arc discussed also.

Key words: Rare earth complexes, Terbium Luminescence, Energy transfer, Structure and proPerty correlation