The aromatic compound/species with the maximu | vedclass

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(A) To determine the number of $\pi$-electrons in each species:$1$. Phenanthrene: It consists of three fused benzene rings. It has $14$ $\pi$-electron

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Phenanthrene

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(A) To determine the number of $\pi$-electrons in each species:$1$. Phenanthrene: It consists of three fused benzene rings. It has $14$ $\pi$-electrons.$2$. Naphthalene: It consists of two fused benzene rings. It has $10$ $\pi$-electrons.$3$. Cyclopentadienyl anion: It has two double bonds ($4$ $\pi$-electrons) and one lone pair on the carbon atom involved in resonance,contributing $2$ $\pi$-electrons,totaling $6$ $\pi$-electrons.$4$. Cycloheptatrienyl cation: It has three double bonds ($6$ $\pi$-electrons) and a vacant $p$-orbital on the positively charged carbon,totaling $6$ $\pi$-electrons.Comparing these,Phenanthrene has the maximum number of $\pi$-electrons $(14)$.Therefore,the correct option is $A$.

The aromatic compound/species with the maximum number of $\pi$-electrons is:

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