Title: resonance hybrid
Long Title: IUPAC Gold Book - resonance hybrid
DOI: 10.1351/goldbook.RT07094
Status: current

Definition
A localized valence bond representation of a molecule. This describes pictorially an electronic wavefunction that makes some contribution to the state wavefunction of the system. resonance hybrids are needed to describe the state of a system when that system is not adequately described by a single Lewis structure.

Related Terms
- resonance: https://goldbook.iupac.org//terms/view/R05326
- valence: https://goldbook.iupac.org//terms/view/V06588

Source
- PAC, 1999, 71, 1919. 'Glossary of terms used in theoretical organic chemistry' on page 1961 (https://doi.org/10.1351/pac199971101919)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/RT07094/html
- json: https://goldbook.iupac.org/terms/view/RT07094/json
- xml: https://goldbook.iupac.org/terms/view/RT07094/xml

Citation: Citation: 'resonance hybrid' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.RT07094
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Accessed: 2025-11-21T04:03:52+00:00