Answers are grounded in this paper and cite their sources.
Summary It is shown that a class of planar conjugated hydrocarbon molecules can be modelled in terms of a simple graph and the related adjacency matrix. Various physical and chemical properties are related to properties of the graphs. The resonance energy is related to such simple invariants as the total number of CC links and the number of Kekulé structures. Rules for enumerating these structures are described.
No takes yet. Share an insight, caveat, or question.
G. G. Hall (1973) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: