Title: homonuclear decoupling
Long Title: IUPAC Gold Book - homonuclear decoupling
DOI: 10.1351/goldbook.08365
Status: current

Definition
Spin decoupling in nuclear magnetic resonance spectroscopy between two signals of the same nuclear isotope.

Note
Homonuclear decoupling is normally performed through selective excitation of specific NMR signals within a spectrum or through pure shift experiments such as PSYCHE.

Related Terms
- PSYCHE: https://goldbook.iupac.org//terms/view/08398
- Spin decoupling: https://goldbook.iupac.org//terms/view/08419
- heteronuclear decoupling: https://goldbook.iupac.org//terms/view/08351
- nuclear magnetic resonance spectroscopy: https://goldbook.iupac.org//terms/view/08218
- spectrum: https://goldbook.iupac.org//terms/view/08384

Source
- PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 693 (https://doi.org/10.1515/pac-2019-0203)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/08365/html
- json: https://goldbook.iupac.org/terms/view/08365/json
- xml: https://goldbook.iupac.org/terms/view/08365/xml

Citation: Citation: 'homonuclear decoupling' 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.08365
License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms.
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Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.
Accessed: 2026-04-17T19:42:29+00:00