Q. 12 C4.6( 5 Votes )

Explain why the following systems are not aromatic?

Answer :

For the given compound, the number of π-electrons is 8.

By Huckel’s rule,

4n + 2 = 8

4n = 6

n = 3/2

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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