02117 IUPAC Gold Book - energy transfer plot 10.1351/goldbook.E02117 E02117 current synonyms: Hammond–Herkstroeter plot, Herkstroeter plot 1 A plot of the quenching rate constant of an excited molecular entity by a series of quenchers versus the excited state energy of the quenchers. Alternatively, a plot of the rate constant for the sensitization of a reaction versus the excited state energy of different sensitizers. This type of plot is used to estimate the energy of the excited molecular entity quenched (in the former case) or produced (in the latter case). Stern–Volmer kinetic relationships https://goldbook.iupac.org//terms/view/S06004 excited state https://goldbook.iupac.org//terms/view/E02257 quenching https://goldbook.iupac.org//terms/view/Q05007 rate constant https://goldbook.iupac.org//terms/view/O04322 sensitization https://goldbook.iupac.org//terms/view/S05607 PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2240 (https://doi.org/10.1351/pac199668122223) https://goldbook.iupac.org/terms/view/E02117/html https://goldbook.iupac.org/terms/view/E02117/json https://goldbook.iupac.org/terms/view/E02117/plain Citation: 'energy transfer plot' 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.E02117 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-05-28T07:24:08+00:00