大学化学 >> 2020, Vol. 35 >> Issue (9): 168-172.doi: 10.3866/PKU.DXHX201910056

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确定分子中离域π键πnm的方法

刘奉岭()   

  • 收稿日期:2019-10-28 录用日期:2019-12-12 发布日期:2019-12-20
  • 通讯作者: 刘奉岭 E-mail:liufengling@sdnu.edu.cn
  • 基金资助:
    山东省自然科学基金(ZR2011BM022)

A Method for Obtaining the Delocalized π Bonds πnm in a Molecule

Fengling Liu()   

  • Received:2019-10-28 Accepted:2019-12-12 Published:2019-12-20
  • Contact: Fengling Liu E-mail:liufengling@sdnu.edu.cn

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摘要：

讨论了确定分子中离域π键πnm的方法，并利用该方法研究了直线形、弯曲形、平面三角形、单环共轭及多环共轭分子中的离域π键。对于NO2形成π34、C3分子形成2π32的原因进行了解释，对环状C18分子中的离域π键也进行了分析。

关键词: 离域π键πnm, 直线形分子, 弯曲形分子, 平面三角形分子, 环状共轭分子

Abstract:

A method for obtaining the delocalized π bonds πnm in a molecule has been discussed in this paper, and the delocalized π bonds πnm in linear, bent, planar trigonal, single cyclic conjugated, and polycyclic conjugated molecules have been studied. The reasons of π34 in NO2 and 2π32 in C3 molecules have been proposed. The delocalized π bonds 2π1818 in cyclo[18] carbon are analyzed.

Key words: Delocalized π bonds πnm, Linear molecule, Bent molecule, Planar trigonal molecule, Cyclic conjugated molecule