HYPERCONJUGATION IN TWISTED PI-RADICALS

被引：36

作者：

BERNDT, A

机构：

来源：

TETRAHEDRON | 1969年 / 25卷 / 01期

关键词：

D O I：

10.1016/S0040-4020(01)99456-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Unexpected large as well as small ESR-proton hyperfine coupling constants are explained by hyperconjugation in twisted π-systems. This type of hyperconjugation has been postulated by Mulliken for the 90° twisted ethylene. A method to prove this hypothesis is proposed and applied successfully till now-to unexpected large couplings. The borderline of this method is discussed in connection with an anion radical of an α,β-unsaturated nitro compound twisted to about 90° at the CαCβ-bond. © 1969.

引用

页码：37 / &

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