Title: microcanonical rate constant Long Title: IUPAC Gold Book - microcanonical rate constant DOI: 10.1351/goldbook.M03896 Status: current Definition A rate constant calculated by microcanonical variational transition-state theory and therefore a rate constant that relates to a fixed energy. Related Terms - microcanonical variational transition-state theory: https://goldbook.iupac.org//terms/view/M03897 - rate constant: https://goldbook.iupac.org//terms/view/O04322 Source - PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 173 (https://doi.org/10.1351/pac199668010149) Other Outputs - html: https://goldbook.iupac.org/terms/view/M03896/html - json: https://goldbook.iupac.org/terms/view/M03896/json - xml: https://goldbook.iupac.org/terms/view/M03896/xml Citation: Citation: 'microcanonical rate constant' 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.M03896 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: 2026-06-20T06:05:13+00:00