Non-Kekuléan and Essentially Disconnected Benzenoid Systems
In the present chapter we outline the basic facts about those benzenoids which are not normal. As already explained in Paragraph 2.3.2 these are the non-Kekuléan systems (for which no Kekulé structure can be drawn) and the essentially disconnected systems (which possess fixed single or double bonds).
KeywordsDualist Graph Horizontal Edge White Vertex Subsequent Part Effective Unit
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