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Stern–Volmer quenching kinetics in photoreaction systems with strong internal filtering: Type II photoreaction of 2‐benzoylcyclohexanone
Author(s) -
Hasegawa Tadashi,
Nishimura Michiko,
Yoshioka Michikazu
Publication year - 1990
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.610030404
Subject(s) - chemistry , quenching (fluorescence) , photochemistry , kinetics , master equation , kinetic energy , fluorescence , optics , physics , quantum mechanics , quantum
The Stern–Volmer quenching equation for a photochemical reaction in the presence of internal filtering was obtained by applying the steady‐state approximation to the system. The equation was used for the kinetic analysis of the Type II photoreaction of 2‐benzoylcyclohexanone yielding 1‐phenylhept‐6‐ene‐1,3‐dione, the enol form of which acts as an effective internal filter. The kq τ value for quenching of the photoreaction by 2,5‐dimethylhexa‐2,4‐diene was determined to be 9·1 ± 0·5 l mol −1 .