高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (5): 640.

• 论文 • 上一篇    下一篇

单元轨道线性组合近似理论--端基官能团对聚乙炔体系电子结构的影响

叶元杰1, 唐敖庆2   

  1. 1. 中国科学院生物物理研究所, 100080;
    2. 吉林大学理论化学研究所
  • 收稿日期:1989-04-24 出版日期:1991-05-24 发布日期:1991-05-24
  • 通讯作者: 叶元杰

Theory on Approximation Linear Combination of Unit Orbital--The Effect of Terminal Functional Groups on the Electronic Structures of Acetylene Systems

Ye Yuan-jie1, Tang Ao-qing(Au-chin Tang)2   

  1. 1. Inst. of Biophys., Academia Sinica, Beijing, 100080;
    2. Inst. of Them. Chem., Jilin Univ., Changchun
  • Received:1989-04-24 Online:1991-05-24 Published:1991-05-24

摘要: 采用单元轨道线性组合近似方法对不同端基官能团的聚乙炔体系作了量子化学计算,结果表明卤素对聚乙炔能带结构影响很小,含有氧、氮的官能团(羧基、醛基和硝基)对聚乙炔能带结构有强烈的类似掺杂作用的影响。

关键词: 聚乙炔, 非周期边界条件, 端基官能团, 能带结构, 掺杂作用

Abstract: The quantum chemistry calculations are carried out on the polyacetylene systems with different terminal functional groups by the approximation method of the linear combination of unit or-bitals(LCUO). The results show that there are two kinds of different terminal functional groups which have different effects on the energy band structure of the polyyne-the halogen has little effect, and the terminal groups containing oxygen and nitrogen have a strong effect that are similar to the doping function.

Key words: Polyacetylene, Terminal functional groups, Energy band structure, Doping function

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