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17. Aromaticity - Part 1 of 2

17. Aromaticity - Part 1 of 2

18. Aromaticity / Ionization of Aromatics / Problem 12

Which resonance structure contributes more to the resonance hybrid of 7-(cyclohexa-2,5-dien-1-ylidene)cyclohepta-1,3,5-triene, A or B?

ANSWERS OPTIONS

A

Because the negative charge in B is more delocalized, it is less stable and contributes more to the resonance hybrid structure than A.

B

Because the negative charge in B is less delocalized, it is more stable and contributes more to the resonance hybrid structure than A.

C

Because the negative charge in A is more delocalized, it is more stable and contributes more to the resonance hybrid structure than B.

D

Because the negative charge in A is less delocalized, it is less stable and contributes more to the resonance hybrid structure than B.

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