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In the theory of total π-electron energy (E) an auxiliary quantity is defined via γ * =[n(2mn-E 2 )]/[2m(2m+n-2E)], where n and m denote the number of vertices and edges of the molecular graph. Within classes of structurally similar conjugated systems a very good linear correlation between γ * and n is observed, apparently contradicting to the way in which γ * (by definition)...
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