Heteroaromaticity. 14. The conjugation energies and electronic structures of nonbenzenoid polycyclic aromatic systems

被引：13

作者：

Bird, CW ^{[1
]}

机构：

[1] Univ London Kings Coll, Dept Chem, London W8 7AH, England

来源：

TETRAHEDRON | 1998年 / 54卷 / 34期

关键词：

D O I：

10.1016/S0040-4020(98)00610-3

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The conjugation energies of a range of polycyclic nonbenzenoid hydrocarbons and aza derivatives have been calculated from their molecular dimensions. In most cases the values obtained reflect the number of pi-electrons as is observed for their polybenzenoid counterparts and in contrast to that predicted by the Huckel +n+2 rule and observed for monocyclic annulenes. The relative contributions of the various Kekule forms for individual molecules do not support the explanation for this observation provided by the Platt hypothesis. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：10179 / 10186

页数：8

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