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Violations of the Hückel (4n + 2) Rule

 

作者: Ivan Gutman,  

 

期刊: Journal of the Chinese Chemical Society  （WILEY Available online 1993）
卷期: Volume 40, issue 1  

页码: 7-10

 

ISSN:0009-4536

 

年代: 1993

 

DOI:10.1002/jccs.199300002

 

出版商: WILEY‐VCH Verlag

 

关键词: Hückel rule;Cyclic conjugation

 

数据来源: WILEY

 

摘要:

AbstractIn polycyclic conjugated hydrocarbons the Hückel (4n + 2)‐rule may be violated, so that certain (4n + 2)‐membcred rings cause thermodynamic destabilization. The structural conditions for the occurrence of such an effect are analyze d. Eight examples (of which seven are new) of non‐b enzenoid hydrocarbons are put forward, in which the Hückel rule is di

 

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