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A) Representative examples of cyclopentaannelated, not‐fully benzenoid PAHs, i.e., dicyclopentaannelated perylene (n=0) [11b] and dicyclopentaannelated bisanthene (n=1); [11a] and B) dicyclopentaannelation on fully benzenoid HBC, giving access to mPHBC and pPHBC and their resonance between the Kekulé structure and open‐shell biradical form.
