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Chemistry LibreTexts

Resonance Energy

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  • Resonance energy of a resonance stabilized species is the difference between its energy and the energy of its lowest-energy resonance form.

    The hypothetical, resonance-stabilized molecule X has three resonance forms (X1, X2, and X3). The graph below shows the relative energies of X (hybrid) and its resonance forms.

    The difference in energy between X and X3 is the resonance energy of X.

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