Singly N-confused  and hexaphyrins (4, 5) with planar and twisted structures, respectively, were prepared via the acid catalyzed [3 + 3] condensation of N-confused and regular tripyrrane precursors. Hückel aromaticity is observed for hexaphyrin, while the hexaphyrin and its mono-Pd(ii) complex exhibit "nonaromaticity" in spite of their Möbius-type structures, judging from the spectroscopic features and theoretical calculations.
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