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Molecular structures of the isolated α,β,α,β‐ 12, α2β2‐ 12 and α3β ‐12 atropismers. Highlighted in green are the aromatic units of which NO2 motifs are pointing above the macrocycle plane, whereas in red, NO2 motifs are pointing below the plane. Hydrogen atoms and solvent molecules omitted for clarity, thermal ellipsoids give 50 % probability.
