{"term":{"id":"08590","title":"dynamic spectrum","longtitle":"IUPAC Gold Book - dynamic spectrum","doi":"10.1351\/goldbook.08590","code":"08590","status":"current","definitions":[{"id":1,"text":"Spectrum of a material under the influence of an applied external perturbation represented by a variable \\(\\tau\\), relative to a reference spectrum.","notes":{"1":"The reference spectrum may be chosen in many ways; e.g., it may be the average over \\(\\tau\\), of the observed spectrum, or it may be zero."},"links":[{"term":"Spectrum","url":"https:\/\/goldbook.iupac.org\/terms\/view\/08291"},{"term":"two-dimensional correlation spectroscopy","url":"https:\/\/goldbook.iupac.org\/terms\/view\/08295"},{"term":"two-dimensional correlation spectrum","url":"https:\/\/goldbook.iupac.org\/terms\/view\/08296"}],"sources":["PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 744 (https:\/\/doi.org\/10.1515\/pac-2019-0203)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/08590\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/08590\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/08590\/plain"},"citation":"Citation: 'dynamic spectrum' 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.08590","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":"2026-07-24T13:52:21+00:00"}}