Title: mean-square unperturbed radius of gyration Long Title: IUPAC Gold Book - mean-square unperturbed radius of gyration DOI: 10.1351/goldbook.12194 Status: current Definition Mean-square radius of gyration of a macromolecule having unperturbed dimensions. Related Term - Mean-square radius of gyration: https://goldbook.iupac.org//terms/view/12192 Source - PAC, 2015, 87, 71. 'Definitions of terms relating to individual macromolecules, macromolecular assemblies, polymer solutions, and amorphous bulk polymers (IUPAC Recommendations 2014)' on page 75 (https://doi.org/10.1515/pac-2013-0201) Other Outputs - html: https://goldbook.iupac.org/terms/view/12194/html - json: https://goldbook.iupac.org/terms/view/12194/json - xml: https://goldbook.iupac.org/terms/view/12194/xml Citation: Citation: 'mean-square unperturbed radius of gyration' 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.12194 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: 2026-06-07T02:06:46+00:00