Photophysics and photochemistry of a water-soluble C60 dendrimer: Fluorescence quenching by halides and photoinduced oxidation of I-

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Texier I, Berberan-Santos M, Fedorov A, Brettreich M, Schönberger H, Hirsch A, Leach S, Bensasson RV
Zeitschrift: Journal of Physical Chemistry A
Verlag: American Chemical Society
Jahr der Veröffentlichung: 2001
Band: 105
Heftnummer: 45
Seitenbereich: 10278-10285
ISSN: 1520-5215
eISSN: 1089-5639


Abstract


Using electronic absorption spectroscopy, and steady-state and time-resolved fluorescence, we studied the singlet state properties of dendro[60]fullerene, a C methanoderivative whose addend is a water-soluble dendrimer. Fluorescence quenching, especially by halide ions in water, was characterized at several temperatures. From a new relation for the activation energy of a diffusion-influenced reaction and from a comparison with the quenching in organic solvents, it is concluded that the quenching occurs by the external heavy-atom effect. An efficient photoinduced oxidation of iodide in aerated solutions and in the presence of a fullerene is also reported. The photoinduced oxidation mechanism exclusively involves ground-state oxygen.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Brettreich, Michael Dr.
Lehrstuhl für Organische Chemie II
Hirsch, Andreas Prof. Dr.
Lehrstuhl für Organische Chemie II


Einrichtungen weiterer Autorinnen und Autoren

National Center for Scientific Research / Centre national de la recherche scientifique (CNRS)
University of Grenoble Alpes (UGA) / Université de Grenoble


Zitierweisen

APA:
Texier, I., Berberan-Santos, M., Fedorov, A., Brettreich, M., Schönberger, H., Hirsch, A.,... Bensasson, R.V. (2001). Photophysics and photochemistry of a water-soluble C60 dendrimer: Fluorescence quenching by halides and photoinduced oxidation of I-. Journal of Physical Chemistry A, 105(45), 10278-10285. https://dx.doi.org/10.1021/jp010215a

MLA:
Texier, Isabelle, et al. "Photophysics and photochemistry of a water-soluble C60 dendrimer: Fluorescence quenching by halides and photoinduced oxidation of I-." Journal of Physical Chemistry A 105.45 (2001): 10278-10285.

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