BENZENOIDS WITH MAXIMUM KEKULE STRUCTURE COUNTS FOR GIVEN NUMBERS OF HEXAGONS
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abstract
Polycyclic aromatic hydrocarbons with the maximal numbers of Kekule structures for any number h of benzenoid rings are shown to be branched cata-condensed systems. Their structures present regularities with periodicities of three and four in terms of h. An analysis of their structures is presented, and the recurrences are highlighted. 1993, American Chemical Society. All rights reserved.