Abstract
Hollow hexagons form a subclass of primitive coronoid systems. The macrocyclic aromatic hydrocarbon kekulene corresponds to a hollow hexagon. The hollow hexagons for given numbers of hexagonal units (h) were enumerated by computer aid, but also an analytical solution for the numbers of hollow hexagons was achieved. For the Kekulé structure counts (k) of a hollow hexagon a general formula is reported. Also the maximum and minimumK numbers are considered.
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This article is Part VI of the series “Enumeration and Classification of Coronoid Hydrocarbons.” For Part V, see ref. [36].
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Cyvin, S.J., Brunvoll, J., Cyvin, B.N. et al. The simplest coronoids: Hollow hexagons. Struct Chem 2, 555–566 (1991). https://doi.org/10.1007/BF00673438
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DOI: https://doi.org/10.1007/BF00673438