Cyclooctatetraene () contains 8 electrons. How does the molecule physically respond to avoid the sev — Hydrocarbons Chemistry Question
Question
Cyclooctatetraene ($C_8H_8$) contains 8 $\pi$ electrons. How does the molecule physically respond to avoid the severe destabilization of anti-aromaticity?
Answer: A
💡 Solution & Explanation
To escape the $4n$ anti-aromatic penalty, the large flexible ring puckers out of a planar geometry into a stable 3D tub shape. Breaking planarity breaks the conjugation, rendering it simply non-aromatic.
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