3-D aromaticity is not as usual as it may seem
The aromaticity of 3-D closo boranes, zintl ions, and charged fullerenes is widely accepted. On the other hand, several fully p-conjugated macrocycles with puckered or cage-type structures were recently found to exhibit aromatic character according to both experiments and computations. We examine their electronic structures and put them in relation to 3D-aromatic molecules (e.g., closo-boranes) […]