Title: Davydov splitting
Long Title: IUPAC Gold Book - Davydov splitting
DOI: 10.1351/goldbook.D01526
Status: current

Definition
The splitting of bands in the electronic or vibrational spectra of crystals due to the presence of more than one (interacting) equivalent molecular entity in the unit cell.

Related Term
- unit cell: https://goldbook.iupac.org//terms/view/U06562

Source
- PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2235 (https://doi.org/10.1351/pac199668122223)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/D01526/html
- json: https://goldbook.iupac.org/terms/view/D01526/json
- xml: https://goldbook.iupac.org/terms/view/D01526/xml

Citation: Citation: 'Davydov splitting' 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.D01526
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Accessed: 2026-07-16T04:24:11+00:00