高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (10): 1611.

• 研究简报 • 上一篇    下一篇

微环境对长链香豆素酯光化学和光物理过程的影响

杜大明1, 王永梅2, 孟继本2   

  1. 1. 山东大学化学学院, 济南, 250100;
    2. 南开大学化学系, 天津, 300071
  • 收稿日期:1997-09-13 出版日期:1998-10-24 发布日期:1998-10-24
  • 通讯作者: 杜大明,男,30岁,副教授.
  • 作者简介:杜大明,男,30岁,副教授.
  • 基金资助:

    国家自然科学基金(批准号:29272051)资助课题.

Microenvironmental Effects on the Photochemical and Photophysical Processes of Long Chain Coumarin Esters

DU Da-Ming1, WANG Yong-Mei2, MENG Ji-Ben2   

  1. 1. College of Chemistry, Shandong University, Jinan, 250100;
    2. Department of Chemistry, Nankai Univrsity, Tianjin, 300071
  • Received:1997-09-13 Online:1998-10-24 Published:1998-10-24

关键词: 光化学, 香豆素, 激基缔合物

Abstract: The photochemical reactions and photophysics of long chain coumarin esters have been investigated. In dioxane water(DX H2O) solvent mixture, long chain 4-methyl-7-hydroxycoumarin hexadecanate and octadecanate form aggregates forced by the hydrophobic effect. The photochemical reactions of this two long chain coumarin esters gave exclusively anti-HTdimer in 75% and 90% yields respectively in dioxane-water(volume ratio 1:2) solvent mixture. The excimer formation and the acceleration of photochemical reaction were ascribed to the hydrophobic effect and the changes of microenvironment.

Key words: Photochemistry, Coumarin, Excimer

中图分类号: 

TrendMD: