Publication details

Photochemistry of rose bengal in water and acetonitrile: a comprehensive kinetic analysis

Authors

LUDVÍKOVÁ Lucie FRIŠ Pavel HEGER Dominik ŠEBEJ Peter WIRZ Hans Jakob KLÁN Petr

Year of publication 2016
Type Article in Periodical
Magazine / Source Physical Chemistry Chemical Physics
MU Faculty or unit

Faculty of Science

Citation
Web http://pubs.rsc.org/en/Content/ArticleLanding/2016/CP/C6CP01710J#!divAbstract
Doi http://dx.doi.org/10.1039/c6cp01710j
Field Physical chemistry and theoretical chemistry
Keywords LASER FLASH-PHOTOLYSIS; TRIPLET-STATE; ELECTRON-TRANSFER; XANTHENE DYES; AQUEOUS-SOLUTION; SINGLET OXYGEN; QUANTUM YIELD; PHOTOSENSITIZATION; ABSORPTION; EOSIN
Description The photophysical and photochemical properties of rose bengal (RB) in degassed aqueous and acetonitrile solutions were studied using steady-state and transient absorption spectroscopies. This comprehensive investigation provides detailed information about the kinetics and the optical properties of all intermediates involved: the triplet excited state and the oxidized and reduced forms of RB. A full kinetic description is used to control the concentrations of these intermediates by changing the initial experimental conditions.
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