Fully Arenoids

As Aihara and Tamaribuchi recently pointed out, graphite can be classified as an infinite fully benzenoid. Some boundless toroidal polyhex surfaces also fall into this category, and examples are listed in Table 2. It was concluded that for a toroidal polyhex encoded (Section 8.9.1.1) as a-b-d, it will be fully benzenoid if and only if 

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Figure 22. Two fully naphthalenoid structures. [But, following Knop et al. (Ref 69) one would regard only (a) as being truly" fully arenoid, because in (b), Kekuld structures can be drawn that involve the empty hexagons.]...

I. Gutman, J. Brunvoll, B. N. Cyvin, E. Brendsdal, and S. J. Cyvin, Essentially disconnected fully acenoids, and fully-arenoid hydrocarbons, Chem. Phys. Lett. 219, 355-359 (1994). 

I. Gutman and S. Cyvin, Fully-arenoid hydrocarbons, MATCH 30, 93-102 (1994). 

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