Aromaticity and Antiaromaticity in Five‐Membered C<sub>4</sub>H<sub>4</sub>X Ring Systems: “Classical” and “Magnetic” Concepts May Not Be “Orthogonal”
Energetic, geometric, and magnetic criteria yield quantitatively the same order of aromaticity (antiaromaticity) for the five-membered ring systems 1: the aromatic 6π electron s...