Why is the following compound not aromatic?
A)It has 4n pi electrons.
B)It is not cyclic.
C)It has 4n+2 pi electrons.
D)The pi electron system is not continuous.

Question

Why is the following compound not aromatic? 
A)It has 4n pi electrons. 
B)It is not cyclic. 
C)It has 4n+2 pi electrons. 
D)The pi electron system is not continuous.

Quizplus · Accepted Answer

For a compound to be aromatic, it must meet the criteria of being cyclic, planar, fully conjugated, and have a continuous loop of pi electrons. The given compound is not cyclic, therefore it cannot be aromatic. Option A is incorrect because a compound with 4n pi electrons can be anti-aromatic. Option C is incorrect because a compound with 4n+2 pi electrons can be aromatic only if it meets all the other criteria.

Why Is the Following Compound Not Aromatic