Photochemical and photophysical study on the kinetics of the atmospheric photodissociation of acetone

The pressure dependence of the photodissociation quantum yield of acetone has been determined in different buffer gases at 308 nm. Results by Stern-Volmer analyses are in accordance with a suggested photolysis mechanism. Luminescence spectra, lifetimes and transition dipole moments have been determi...

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Bibliographic Details
Published in:Reaction kinetics and catalysis letters 2009-04, Vol.96 (2), p.437-446
Main Authors: Szilágyi, István, Kovács, Gergely, Farkas, Mária, Zügner, Gábor L., Gola, Agnieszka, Dóbé, Sándor, Demeter, Attila
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Physical Chemistry
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Summary:The pressure dependence of the photodissociation quantum yield of acetone has been determined in different buffer gases at 308 nm. Results by Stern-Volmer analyses are in accordance with a suggested photolysis mechanism. Luminescence spectra, lifetimes and transition dipole moments have been determined. The energy transfer process by O 2 to give O 2 ( 1 Δ g ) is of minor importance in the case of the singlet excited state of acetone, while it is the dominant deactivation process for the triplet state.
ISSN:0133-1736
1588-2837
DOI:10.1007/s11144-009-5538-0