A compound can be aromatic overall even if it contains anti-aromatic rings.
the verdict
SUPPORTED
the evidence backs this
confidence 75/100
Chemical systems containing locally antiaromatic rings can exhibit overall global aromaticity or diatropicity.
Evidence for · 3
Sterically controlled 5-<i>exo</i>-dig cyclization enables synthesis of non-benzenoid polycyclic aromatic hydrocarbons with intriguing (anti)aromaticity and diradical properties.
2026 · cited by 0
Paper [3] demonstrates that non-benzenoid polycyclic aromatic hydrocarbons can maintain global aromaticity even when containing antiaromatic indacene or pentalene subunits.
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More for · 2
Oxidation of [3]naphthylenes to cations and dications converts local paratropicity into global diatropicity.
2025 · cited by 0
Paper [5] shows that oxidized states of [3]naphthylenes, which consist of fused aromatic and antiaromatic moieties, convert into overall globally diatropic molecules.
Three wrongs make a right: a computational investigation of [4<i>n</i>]-[4<i>n</i>]-[4<i>n</i>] fused π-systems.
2026 · cited by 0
Paper [7] discusses how fusing antiaromatic units can afford delocalized pi-systems with reduced paratropicity or weak diatropicity overall.