Novel cyclooctatetralene radical cation planarized by full annelation with bicyclo[2.1.1]hexene units

被引：14

作者：

Nishinaga, T ^{[1
]}

Uto, T ^{[1
]}

Komatsu, K ^{[1
]}

机构：

[1] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan

来源：

ORGANIC LETTERS | 2004年 / 6卷 / 24期

关键词：

D O I：

10.1021/ol047930y

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A novel cyclooctatetraene (COT) radical cation fully annelated with bicyclo[2.1.1]hexene units was prepared as SbCl6- salt, and planarity of the octagonal ring was clarified by ESR and theoretical calculations. Its longest wavelength absorption (630 nm) is blue-shifted from that (745 nm) of COT radical cation annelated with bicyclo[2.2.2]octene units due to the widening of the HOMO-SOMO gap accompanying the flattening of the COT ring.

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页码：4611 / 4613

页数：3

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