大学化学 >> 2017, Vol. 32 >> Issue (1): 84-105.doi: 10.3866/PKU.DXHX201603010

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超共轭与立体电子效应

洪鹄*(),黄兆和,柴正祺,张沅珒   

  • 发布日期:2017-01-13
  • 通讯作者: 洪鹄 E-mail:eeeqxxtg@pku.edu.cn

Hyperconjugative and Stereoelectronic Effect

Hu HONG*(),Zhao-He HUANG,Zheng-Qi CHAI,Yuan-Jin ZHANG   

  • Published:2017-01-13
  • Contact: Hu HONG E-mail:eeeqxxtg@pku.edu.cn

摘要:

回顾了超共轭概念的起源与发展,简述了超共轭效应在立体电子效应中的重要地位及其对于分子构象和反应活性的重要影响,并对乙烷的优势构象成因进行了讨论。

关键词: 超共轭, 乙烷构象

Abstract:

In recent years, hyperconjugation is considered as the main reason why ethane prefers cross conformation. In this article, we review the history of hyperconjugation theory, a significant part of stereoelectronic effect. Furthermore, we explore the relationship between conformation analysis, reactivity and hyperconjugation, demonstrate the significance in probing molecular structure, and also make a discussion about the hyperconjugation explanation for the preference of ethanein cross conformation.

Key words: Hyperconjugation, Ethane conformation

MSC2000: 

  • G64