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Explain Why the Following Systems Are Not Aromatic? Number of π-electrons is Six - CBSE (Science) Class 11 - Chemistry

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Question

Explain why the following systems are not aromatic?

Solution 1

For the given compound, the number of π-electrons is six. But only four π-electrons are present within the ring. Also there is no conjugation of π-electrons within the ring and the compound is not planar in shape. Hence, the given compound is not aromatic in nature.

Solution 2

Due to the presence of a sp3-hybridized carbon, the system is not planar. It does contain six n-electrons but the system is not fully conjugated since all the six n-electrons do not form a single cyclic electron cloud which surrounds all the atoms of the ring. Therefore, it is not an aromatic compound.

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Solution Explain Why the Following Systems Are Not Aromatic? Number of π-electrons is Six Concept: Aromatic Hydrocarbons - Aromaticity.
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