Term: Schenck-sensitization mechanism
https://doi.org/10.1351/goldbook.S05497

Definition:
Chemical transformation of one molecular entity caused by photoexcitation of a sensitizer, which undergoes temporary covalent bond formation with the molecular entity (M). S05497.png

Notes:
0) This mechanism is the basis of the Type I @P04641@.
1) The reactive molecular entity could be ground-state molecular dioxygen, O2, in which case energy transfer may occur producing singlet molecular oxygen, this being the basis of the Type II @P04641@.

Related Terms:
1) photooxygenation (http://doi.org/10.1351/goldbook.P04641).
2) transformation (http://doi.org/10.1351/goldbook.T06446).
3) photoexcitation (http://doi.org/10.1351/goldbook.P04613).
4) sensitizer (http://doi.org/10.1351/goldbook.S05610).

Image: Not defined (https://goldbook.iupac.org/img/inline/S05497.png) 

Source: PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 418 (https://doi.org/10.1351/pac200779030293)

Citation: 'Schenck-sensitization mechanism' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.S05497

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