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Article Dans Une Revue New Journal of Chemistry Année : 2014

New highly electrodeficient cationic fluorescent tetrazines: a step toward the strongest purely organic photooxidants

Résumé

Fluorescent strongly electrodeficient tetrazines substituted with cationic heterocycles have been prepared. These compounds can be reversibly reduced at a high potential and consequently their excited state is a strong oxidant. As a result of their very strong photooxidant character, their fluorescence is quenched in the presence of toluene, m-xylene styrene and sometimes even benzene, through a photoinduced electron transfer reaction with a dynamic quenching mechanism. Beyond their photooxidizing properties, these new molecules have a potential towards the realization of new fluorescence sensors. As an example, tetrazine 3 has been dispersed on silica particles and we have demonstrated that its fluorescence is quenched upon exposure to benzene vapors.
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hal-01081838 , version 1 (11-11-2014)

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Eva Jullien-Macchi, Clémence Allain, Valérie Alain-Rizzo, Cécile Dumas-Verdes, Laurent Galmiche, et al.. New highly electrodeficient cationic fluorescent tetrazines: a step toward the strongest purely organic photooxidants. New Journal of Chemistry, 2014, 38 (8), pp.3401-3407. ⟨10.1039/c4nj00192c⟩. ⟨hal-01081838⟩
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