antiaromaattisuus
Antiaromaattisuus describes a specific type of electronic structure in cyclic organic molecules. It is a concept closely related to aromaticity and anti-aromaticity. A molecule is considered antiaromatic if it is cyclic, planar, fully conjugated, and possesses a number of pi electrons equal to 4n+2, where n is an integer. However, this definition is for aromaticity. For antiaromaticity, the molecule must be cyclic, planar, fully conjugated, and have 4n pi electrons, where n is a positive integer. This electron count leads to a destabilized electronic configuration due to a peculiar arrangement of molecular orbitals.
Unlike aromatic compounds, which are exceptionally stable, antiaromatic compounds are highly unstable and energetically unfavorable. This
The inherent instability of antiaromatic compounds means that they are rarely observed in isolation and often