[18]-annulene

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[18]-annulene

chemical compound

Learn about this topic in these articles:

nonbenzenoid aromatic compounds

In hydrocarbon: Annulenes and the Hückel rule
[18]-Annulene is predicted to be aromatic by the Hückel rule (4n + 2 = 18 when n = 4). The structure shown has a shape that makes it free of angle strain and is large enough so that repulsive forces between hydrogen atoms in the…
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