高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (8): 1283.

• 论文 • 上一篇    下一篇

偶氮染料分子的电子结构与生物降解活性(Ⅰ)--电荷分布对偶氮键还原裂解的影响

张笑一1, 兰薇1, 潘渝生2, 任大恭3, 都国友3, 段正坤3, 刘志春3, 姚莎3   

  1. 1. 贵州师范大学化学系, 贵阳, 550001;
    2. 贵阳市环保局, 贵阳, 550002;
    3. 贵阳棉纺厂, 贵阳, 550002
  • 收稿日期:1997-11-18 出版日期:1998-08-24 发布日期:1998-08-24
  • 通讯作者: 张笑一,女,49岁,副教授.
  • 作者简介:张笑一,女,49岁,副教授.
  • 基金资助:

    贵州省自然科学基金(黔科综通字1995-55号)资助课题.

Electronic Structure and Biodegradability of Azo-dyes Molecule(Ⅰ) Effect of the Charge Distribution on the Reduction Breakdown of Azo-bond

ZHANG Xiao-Yi1, LAN Wei1, PAN Yu-Sheng2, REN Da-Gong3, DU Guo-You3, DUAN Zheng-Kun3, LIU Zhi-Chun3, YAO Sha3   

  1. 1. Department of Chemistry, Guizhou Normal University, Guiyang, 550001;
    2. Guiyang Environmental Protection Bureau, Guiyang, 550002;
    3. Guiyang Cotton Tex tile Mill, Guiyang, 550002
  • Received:1997-11-18 Online:1998-08-24 Published:1998-08-24

摘要: 用量子化学MNDO方法计算了不同结构类型的偶氮染料分子的电子结构.与厌氧活性污泥对偶氮双键生物降解实验结果对照分析后发现,分子电子结构中,电荷分布的对称性对偶氮键生物降解活性有重要影响.并通过LUMOlp(具有反应部位氮原子孤电子对特征的最低空轨道)及分子偶极矩阐述了电子结构与生物降解活性的关系.

关键词: 偶氮染料, MNDO方法, 电子结构, 生物降解活性

Abstract: The electronic structure of a series of azo-dye molecules was calculated by MNDOmethod in this paper. It was found that the biodegradation of azo-bond was greatly affected by the symmetry of the charges distribution in molecular structure in comparison with the anaerobic breakdown experimental results, then the electronic structure biodegradability relationship was described by means of LUMOlp(lowest unoccupied molecular orbit with the characteristics of lone electron pair) and molecular dipole moment.

Key words: Azo-dye, MNDO method, Electronic structure, Biodegradability

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