18. Aromaticity / Aromaticity / Problem 6
Shown below is the MO energy diagram of a cyclooctatetraene derivative. Does the MO energy diagram correspond to a stable or unstable configuration? Provide a brief explanation for your answer. The MO energy diagram corresponds to a stable configuration because the non-bonding molecular orbitals are empty.
The MO energy diagram corresponds to a stable configuration because all electrons in bonding molecular orbitals are paired.
The MO energy diagram corresponds to an unstable configuration because two electrons are located in two different nonbonding orbitals, indicating a diradical character.
The MO energy diagram corresponds to an unstable configuration because all bonding molecular orbitals are filled with electrons.
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