物理化学学报 >> 1988, Vol. 4 >> Issue (05): 511-515.doi: 10.3866/PKU.WHXB19880514

研究论文 上一篇    下一篇

杂环光化学——Ⅲ. 核酸碱基衍生物的电子光谱研究

周亚琳; 刘晓云; 樊美公   

  1. 中国科学院感光化学研究所
  • 收稿日期:1987-03-04 修回日期:1987-08-08 发布日期:1988-10-15
  • 通讯作者: 樊美公

PHOTOCHEMISTRY OF HETEROCYCLES Ⅲ. INVESTIGATION OF ELECTRON SPECTROSCOPY OF NUCLEIC ACID BASES AND ITS DERIVATIVES

Zhou Yalin; Liu Xiaoyun; Fan Meigong*   

  1. Institute of Photographic Chemistry; Academia Sinica; Beijing
  • Received:1987-03-04 Revised:1987-08-08 Published:1988-10-15
  • Contact: Fan Meigong

摘要: 测定了脲嘧啶、胸腺嘧啶、6-氮杂脲嘧啶、6-氮杂胸腺嘧啶和它们的相应的二甲基衍生物以及鸟嘌呤、8-氮杂鸟嘌呤等十个化合物的吸收光谱、荧光光谱和磷光光谱。讨论了这类化合物的分子结构与光物理过程及激发态之间的关系。

Abstract: Absorption, Fluorescence and Phosphorescence Spectra of uracil, 1,3-dimethyl uracil, thymine, 1,3-dimethylthymine, 6-aza-uracil, 1,3-dimethyl-6-aza-uracil, 6-aza-thymine, 1,3-dimethy-6-aza-thymine, guanine and 8-aza-guanine were determined. Relationship of molecular structure with photophysics and excited state was discussed.
The conclusion is that the singlet state of these compounds is neither pure ~1(n, π~*) nor pure ~1(π, π~*). It is suitable when the mixing state was used to describe the singlet state of the compounds.