Which of the following ions is considered anti-aromatic?

Name: Which of the following ions is considered anti-aromatic?
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Question

Quizplus · Accepted Answer

The ion in option C (11eac423_bf58_f92a_a9af_8bf4f0de6e51_TB7652_11) is considered anti-aromatic because it has 4n π electrons, where n is an integer. In this case, n=2, and there are 8 π electrons in the ring system. Since 8 is divisible by 4, this is an example of an anti-aromatic ion.

Which of the Following Ions Is Considered Anti-Aromatic