影像科学与光化学 ›› 1999, Vol. 17 ›› Issue (1): 45-50.DOI: 10.7517/j.issn.1674-0475.1999.01.45

• 研究论文 • 上一篇    下一篇

双(苯并噁唑)芪的光物理行为及其异构化反应的研究

姜永才, 吴世康   

  1. 中国科学院感光化学研究所, 北京100101
  • 收稿日期:1998-04-30 修回日期:1998-07-03 出版日期:1999-02-20 发布日期:1999-02-20
  • 通讯作者: 吴世康
  • 基金资助:
    国家自然科学基金资助项目(批准号:29503025)

A STUDY ON THE PHOTOPHYSICAL BEHAVIORS AND PHOTOISOMERIZATION REACTION OF BIS(2-BENZOXADYL)STILBENE

JIANG Yongcai, WU Shikang   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China
  • Received:1998-04-30 Revised:1998-07-03 Online:1999-02-20 Published:1999-02-20

摘要: 研究了双(苯并噁唑)芪的光物理行为和光顺反异构化反应,对这类化合物的发光光谱不依赖于溶剂极性的原因进行了初步讨论。异构化反应中,发现乙二醇引入时会加速该化合物反-顺异构化和抑制顺-反过程的回复,其原因可能是与生成了顺式异构体两个苯基苯并噁唑间的氢键有关。

关键词: 双(苯并噁唑)芪, 光异构化, 氢键作用

Abstract: The photophysical behaviors and the photoisomerization reaction of bis(2-benzoxazolyl) stilbene have been studied. The relation of the solvent polarity and the emission spectrum of these compounds were discussed preliminarily. It was found that the introduction of small amount of ethylene glycol in the system, the process of trans-cis photoisomerization was improved where the thermo-recover process was inhibited evidently. It was proposed that this phenomenon is ascribed to the formation of hydrogen bonds between benzoxazolyl groups and the ethylene glycol.

Key words: bis(2-benzoxazolyl) stilbene, photoisomerization, hydrogen bonding interaction