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. 2019 Apr 5;10(8):2017–2022. doi: 10.1021/acs.jpclett.9b00623

Figure 1.

Figure 1

Examples of macrocyclic π-conjugated molecules that exhibit no ground-state global aromaticity in their neutral ground states, only local aromaticity: cyclo-para-phenylenes ([N]CPP) and porphyrin nanorings (c-PN).