物理化学学报 >> 1998, Vol. 14 >> Issue (11): 981-987.doi: 10.3866/PKU.WHXB19981105

研究论文 上一篇    下一篇

水杨叉缩苯胺及其衍生物的变色机理

李银玲, 王凤奇, 甄珍, 张建成, 刘新厚   

  1. 中国科学院感光化学研究所,北京 100101
  • 收稿日期:1998-02-25 修回日期:1998-04-21 发布日期:1998-11-15
  • 通讯作者: 刘新厚

The Coloration Mechanism of N-salicylideneanilines and its Derivatives

Li Yin-Ling, Wang Feng-Qi, Zhen Zhen, Zhang Jian-Cheng, Liu Xin-Hou   

  1. Institute of Photographic Chemistry,Chinese Academy of Sciences,Beijing 100101
  • Received:1998-02-25 Revised:1998-04-21 Published:1998-11-15
  • Contact: Liu Xin-Hou

摘要:

用半经验分子轨道理论方法(AM1方法)对一系列具有不同取代基的水杨醛类席夫碱的变色机理进行了研究,发现此类席夫碱的变色过程分为两步,有色产物主要为醌式结构.

关键词: AM1方法, 席夫碱, 过渡态

Abstract:

AM1 method has been used to study tile mechanism of coloration processes of salicylideneaniline derivatives with different substituents. It has been found that the substituents have not obvious effect on tile structure of the reaction system. All the N-salicylideneanilines investigated have the enol-like structures at room temperature and the coloration processes undergo by two steps and the colored products have the unstable keto-like structure which reverses to the cis-keto structure quickly.

Key words: AM1 method, Schiff base, Transition state