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本文分析了共轭烃分子轨道的节面分布及位相符号变化的规律,从HOMO与LUMO节面数的奇、偶性出发推导出了周环反应普适性的选择规则—WoodWard-Hoffmann定则.
In this paper, the nodal distributions of the molecular chains of conjugated hydrocarbons and the regularity of their sign change are analyzed. Based on odd and even numbers of HOMO and LUMO nodal numbers, the selection rule of peridural reaction universality is derived-Woodward-Hoffmann principle .