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[期刊论文]

从无键共振看气相中醇的酸性顺序

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author:

王文峰 (王文峰.) [1] | 袁耀锋 (袁耀锋.) [2]

Abstract:

通过比较C—O单键和CO双键的键能,预测醇的共轭碱很容易通过无键共振形成CO双键。由于C—C键能远小于C—H键能,所以甲基比氢原子更容易通过形成无键共振来稳定烷氧基负离子,由此导致气相中的酸性顺序为:(CH3)3COH>(CH3)2CHOH>CH3CH2OH>CH3OH。这个观点得到了量子化学计算的支持。

Keyword:

无键共振 酸性顺序 键能

Community:

  • [ 1 ] 福州大学化学学院

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Source :

大学化学

Year: 2015

Issue: 01

Volume: 30

Page: 68-71

Cited Count:

WoS CC Cited Count:

30 Days PV: 0

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