高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (12): 1700.

• 研究论文 • 上一篇    下一篇

2-(2′-羟基苯基)苯并咪唑的质子转移反应和光谱性质的理论研究

徐文国1, 封继康1, 孙家锺2   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 吉林大学理论化学研究所
  • 收稿日期:1992-12-28 修回日期:1993-09-08 出版日期:1993-12-24 发布日期:1993-12-24
  • 通讯作者: 封继康.
  • 作者简介:徐文国, 男, 33岁, 博士, 副教授.
  • 基金资助:

    国家自然科学基金

A Theoretical Study of Proton Transfer Reaction and Spectroscopic Properties of 2-(2'-Hydroxyphenyl)benzoimidazoIe

XU Wen-Guo1, FENG Ji-Kang1, SUN Jia-Zhong2   

  1. 1. Department of Chemistry, Jilin University, Changchun, 130023;
    2. The Institute of Theoretical Chemistry, Jilin University
  • Received:1992-12-28 Revised:1993-09-08 Online:1993-12-24 Published:1993-12-24

摘要: 用AM1和INDO/S-CI方法对2-(2'-羟基苯基)苯并咪唑的基态和激发态分子内质子转移反应进行了理论研究,求得基态和激发态反应的势能曲线、势垒和过渡态,并研究了此分子的一些异构体、阴离子的相对稳定性,估算了氢键能.进行了实验光谱的理论指认,所得结果与实验值符合较好,在此基础上对光化学反应机理和光谱性质进行了探讨.

关键词: 2-(2'-羟基苯基)苯并咪唑, 质子转移反应, 光谱性质, AM1和INDO/S-CI方法

Abstract: The AMIand INDO/S-CIsemiempirical MOmethods were used to investigate ground and excited state proton transfer reactions of 2-(2'-hydroxyphenyl)benzoimidazole.The potential energy curve, barrier, transition state in the ground and excited states were obtained.The relative stabilities of some isomers and anions, hydrogen bond energy and the theoretical assignment for the spectra of the related isomers were studied.The results are in satisfactory agreement with the experiment values.The mechanism of the photochemical reaction and spectroscop-ic properties were discussed.

Key words: 2-(2'-Hydroxyphenyl)benzoimidazole, Proton transfer reaction, Spectroscopic properties, AMI and INDO/S-CI methods

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