Aromaticity with a twist:: Mobius [4n]annulenes

被引：83

作者：

Castro, C

Isborn, CM

Karney, WL

Mauksch, M

Schleyer, PV

机构：

[1] Univ San Francisco, Dept Chem, San Francisco, CA 94117 USA

[2] Univ Erlangen Nurnberg, Inst Organ Chem, D-91054 Erlangen, Germany

[3] Univ Erlangen Nurnberg, Comp Chem Ctr, D-91054 Erlangen, Germany

[4] Univ Georgia, Dept Chem, Athens, GA 30602 USA

来源：

ORGANIC LETTERS | 2002年 / 4卷 / 20期

关键词：

D O I：

10.1021/ol026610g

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHICS] Aromatic Mobius [4n]annulenes with 4n pi electrons, originally conceived by Heilbronner, are characterized computationally. These (CH)(12), (CH)(16), and (CH)(20) minima have nearly equal C-C bond lengths, small twist angles around the rings, and magnetic properties (NICS, nucleus-independent chemical shifts-see above at various positions in [16]annulene-and magnetic susceptibility exaltations) indicating significantly diatropic ring currents. The Mobius forms are not the most stable isomers but may contribute significantly to the chemistry of these annulenes.

引用

页码：3431 / 3434

页数：4

共 35 条

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