Q. 12 B4.7( 7 Votes )
Explain why the following systems are not aromatic?
For the given compound, the number of π-electrons is 4.
By Huckel’s rule,
⇒ 4n + 2 = 4
⇒ 4n = 2
⇒ n = 1/2
For a compound to be aromatic, the value of n must be an integer (n = 0, 1, 2…).
This is not true for the given compound as it is a fraction. Hence, it is not aromatic in nature.
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