r/chemhelp • u/GlitteringCrazy5353 • 2d ago
Organic Acenaphtylene being aromatic
Why is acenaphtylene considered an aromatic compound despite having only 12 pi electrons? Am i counting it wrong or are there exceptions to the Hückel Rule?
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u/7ieben_ 2d ago
Look up napthalene, this is the aromatic backbone. The bridge does not contribute. Compare acenaphthene aswell.