Title: photochemistry
Long Title: IUPAC Gold Book - photochemistry
DOI: 10.1351/goldbook.P04588
Status: current

Definition
The branch of chemistry concerned with the chemical effects of light (far UV to IR).

Related Term
- photochemical reaction: https://goldbook.iupac.org//terms/view/P04585

Source
- PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2259 (https://doi.org/10.1351/pac199668122223)

Related Reference
- PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2206 (https://doi.org/10.1351/pac199062112167)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/P04588/html
- json: https://goldbook.iupac.org/terms/view/P04588/json
- xml: https://goldbook.iupac.org/terms/view/P04588/xml

Citation: Citation: 'photochemistry' 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.P04588
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.
Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .
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: 2026-05-28T09:08:54+00:00