quenching

Also contains definitions of: dynamic quenching, static quenching
https://doi.org/10.1351/goldbook.Q05007
@[email protected] of an excited molecular entity intermolecularly by an external environmental influence (such as a @[email protected]) or intramolecularly by a substituent through a non-radiative process.
Notes:
  1. When the external environmental influence (@[email protected]) interferes with the behaviour of the @[email protected] after its formation, the process is referred to as dynamic quenching. Common mechanisms include energy transfer, @[email protected], etc.
  2. When the environmental influence inhibits the @[email protected] formation the process is referred to as static quenching.
Source:
PAC, 2007, 79, 293. (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 407 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014