物理化学学报 >> 1994, Vol. 10 >> Issue (07): 610-615.doi: 10.3866/PKU.WHXB19940707

研究论文 上一篇    下一篇

联有含氮艹/氐的2-吡唑啉化合物的光物理行为

闫正林, 吴世康   

  1. 中国科学院感光化学研究所,北京 100101
  • 收稿日期:1993-01-11 修回日期:1993-07-01 发布日期:1994-07-15
  • 通讯作者: 吴世康

The Photophysical Behavior of 2-Pyrazoline with Azastilbene

Yan Zheng-Lin, Wu Shi-Kang   

  1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101
  • Received:1993-01-11 Revised:1993-07-01 Published:1994-07-15
  • Contact: Wu Shi-Kang

摘要:

合成了一种在(5)位上联有含氮的2-吡唑啉化合物,研究了该化合物分子所呈现的光敏顺-反异构化现象,并对其机理进行了考察,研究结果表明:具电子转移性质的该化合物顺-反异构化反应速率强烈的依赖于溶剂的极性。同时,光敏异构化还导致了该吡唑啉化合物荧光发射强度随光照时间而增大的有趣结果。

关键词: 1,3,5-三芳基-2-吡唑啉, 荧光量子产率, 光敏顺-反异构化反应, 分子内光诱导电子转移

Abstract:

In this work, a new kind of 2-pyrazoline compound with azastilbene on position 5 has been synthesized. The photoinduced cis-trans isomerization and its mechanism have also been studied. Results indicate that the rate for the photoisomerization reaction of the title compound depends strongly on the polarity of solvents used, and the photoisomerization reaction led to increase of the fluorescence intensity of this compound with increase of irradiation duration.

Key words: 1,3,5-triaryl-2-pyrazoline, Fluorescence quantum yield, Photoinduced cistrans isomerization, Intramolecular photoinduced charge transfer, Azastilbene