波谱学杂志 ›› 1999, Vol. 16 ›› Issue (2): 150-155.

• 研究论文 • 上一篇    下一篇

安息香激光光解的CIDNP研究

王玥菊, 李二成   

  1. 中国科学院化学研究所分子动态与稳态国家重点实验室, 北京 100080
  • 收稿日期:1998-11-09 修回日期:1999-03-11 出版日期:1999-04-05 发布日期:2018-01-11
  • 作者简介:王玥菊,女,1974年出生,硕士,助教
  • 基金资助:
    国家自然科学基金资助项目(29473142)

LASER -DECOMPOSITION AND CIDNP STUDY OF BENZOIN

Wang Yueju, Li Ercheng   

  1. Institute of Chemistry, The Chinesse Acedamy of Sciences, Beijing 100080
  • Received:1998-11-09 Revised:1999-03-11 Online:1999-04-05 Published:2018-01-11

摘要: 采用Nd/YAG激光器的三倍频激光脉冲(355nm),研究了安息香的激光光解过程及其CIDNP效应,获得了不同动力学参数d9下的CIDNP谱,由此对预测的反应机理作出了证实.通过自编程序,根据对两种光反应产物不同形成途径的CIDNP模拟谱的计算,对安息香光解过程CIDNP效应芳环上质子的极化情况作出了合理归属.

关键词: 安息香, 激光光解, CIDNP

Abstract: Photo-decomposition of benzoin and its derivatives has mainly been investigated from the standpoint as initiators of photo-polymerrization. In this article, we obtained different CIDNP spectrum by changing kinetic parameter d9. The photo-decomposition scheme of benzoin was verified, suggesting that the benzaldehyde is an escape product and the benzoin is a geminate product. By simulating the CIDNP spectrum, the polarized signals of the arene protons are also distinguished.

Key words: Benzoin, Laser-decomposition, CIDNP effect