Also contains definitions of: dynamic quenching, static quenching
@D01528@ of an excited molecular entity intermolecularly by an external environmental influence (such as a @Q05006@) or intramolecularly by a substituent through a non-radiative process.
  1. When the external environmental influence (@Q05006@) interferes with the behaviour of the @E02257@ after its formation, the process is referred to as dynamic quenching. Common mechanisms include energy transfer, @E02011@, etc.
  2. When the environmental influence inhibits the @E02257@ formation the process is referred to as static quenching.
PAC, 2007, 79, 293. (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 407 [Terms] [Paper]