高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (2): 374.

• 研究简报 • 上一篇    

以β-二酮连接的含生色团丙烯酰类单体及其饱和模型化合物的荧光行为

杜福胜1, 张昕1, 陈广强1, 李子臣1, 李福绵1, 潘卉2, 高青雨2   

  1. 1. 北京大学化学与分子工程学院高分子科学与工程系, 北京 100871;
    2. 河南大学化学化工学院, 开封 475001
  • 收稿日期:2001-09-19 出版日期:2003-02-24 发布日期:2003-02-24
  • 通讯作者: 李福绵(1932年出生),男,教授,博士生导师,主要从事功能高分子研究.E-mail:fmli@chem.pku.edu.cn E-mail:fmli@chem.pku.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:50003001);教育部博士学科点基金(批准号:99000131)资助

Fluorescence Behavior of a β-Diketone-bridged Chromophore-containing Acrylic Monomer and Its Model Compound

DU Fu-Sheng1, ZHANG Xin1, CHEN Guang-Qiang1, LI Zi-Chen1, LI Fu-Mian1, PAN Hui2, GAO Qing-Yu2   

  1. 1. Department of Polymer Science and Engineering, College of Chemistry and Molecular Engneering, Peking University, Beijing 100871, China;
    2. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001, China
  • Received:2001-09-19 Online:2003-02-24 Published:2003-02-24

关键词: &beta, -二酮, 互变异构, 荧光, 紫外吸收, 荧光结构自猝灭效应

Abstract: A β-diketone-bridged chromophore-containing acrylic monomer, 1-(4-dimethylaminophenyl)-4-methyl-4-pentene-1,3-diketone(DMPDK) and its saturated model compound, 1-(4-dimethyl aminophenyl)-1,3-butanedione(DMBDK) were synthesized and investigated by spectroscopy. It was found that the fluorescence intensity of DMPDK was much lower than that of DMBDK at the same concentration, which indicates that DMPDK, a β-diketone-bridged acrylic monomer having chromophore moiety, also showed fluorescence structural self-quenching effect(SSQE). Photo-induced tautomerization of DMBDK in acetonitrile was studied by means of UV and fluorescence spectroscopy. The results imply that the fluorescence method is capable of monitoring tautomerization of some fluorescent β-diketones.

Key words: Diketone, Tautomerization, Fluorescence, UV absorption, SSQE

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