Question

Why is azulene not aromatic?

Answer 1

Answer:

Azulene (pronounced “as you lean”) is an aromatic hydrocarbon that contains no six-membered rings. It is an isomer of naphthalene and has a similar odor, but instead of white, its crystals are dark blue. ... Azulene's 10–π-electron system qualifies it as an aromatic compound.

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