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(一)什麽是“中介论”? 在批判“共振论”和“中介论”以前,我们先介绍一下什麽是“共振论”什麽是“中介论”和以後这两种“理论”如何融合起来。要说明“共振论”和“中介论”,以及产生这两个“理论”的历史背景,最好先从苯分子的结构说起。苯分子的结构是有机化学发展史上一个久悬未决的问题,很多结构式曾经提出,其中最著名的是凯库勒(Kekule)的式子(Ⅰ.Ⅱ.):
(1) What is “Intermediary Theory”? Before we criticize “Resonance Theory” and “Intermediary Theory”, let us first introduce what is “resonance theory” and what is “intermediation theory” and how these two “theories” will be integrated . To illustrate the “resonance theory” and “intermediary theory”, as well as to create the historical background of these two “theories”, it is best to start with the structure of benzene molecules. The structure of benzene molecules is a longstanding problem in the history of organic chemistry. Many structural formulas have been proposed. The most famous one is Kekule’s formula (Ⅰ.Ⅱ.):