Determine the number of aromatic compounds in | vedclass

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(D) To identify aromatic compounds,we apply $H$ückel's rule: the compound must be cyclic,planar,fully conjugated,and contain $(4n+2) \pi$ electrons.$1

Vedclass · Accepted Answer

$5$

Vedclass · Answer

(D) To identify aromatic compounds,we apply $H$ückel's rule: the compound must be cyclic,planar,fully conjugated,and contain $(4n+2) \pi$ electrons.$1$. Cyclobutadiene: $4 \pi$ electrons (anti-aromatic).$2$. Cyclopentadienyl anion: $6 \pi$ electrons (aromatic).$3$. Azulene: $10 \pi$ electrons (aromatic).$4$. Cyclooctatetraene: Non-planar,$8 \pi$ electrons (non-aromatic).$5$. Cyclopropenone: $2 \pi$ electrons in the ring (aromatic).$6$. Furan: $6 \pi$ electrons (aromatic).$7$. Cyclobutadiene dication: $2 \pi$ electrons (aromatic).$8$. Fulvalene derivative: Not fully conjugated across the system (non-aromatic).The aromatic compounds are: Cyclopentadienyl anion,Azulene,Cyclopropenone,Furan,and Cyclobutadiene dication.Total number of aromatic compounds = $5$.

Determine the number of aromatic compounds in the given set of compounds.

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