Resonance in Benzene

Benzene exhibits resonance, a phenomenon where the actual electronic structure is a hybrid of two or more contributing structures.

Resonance in Benzene

  •  There are two main resonance structures:
    • In one structure, double bonds are between C1-C2, C3-C4, and C5-C6.
    • In the other structure, double bonds are between C2-C3, C4-C5, and C6-C1.
  • These resonance structures imply that the π electrons are delocalized over all six carbon atoms.
  • The real structure is a resonance hybrid of these two structures, with equal bond lengths between all carbon atoms.
  • This delocalization of π electrons gives benzene extra stability, known as resonance energy.

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