Issue 73, 2015
From the journal:

Chemical Communications

Reactivity of a pyridinium-substituted dimethyldihydropyrene switch under aerobic conditions: self-sensitized photo-oxygenation and thermal release of singlet oxygen†

Saioa Cobo,a   Frédéric Lafolet,a   Eric Saint-Aman,a   Christian Philouze,a   Christophe Bucher,b   Serena Silvi,c   Alberto Credi*c  and  Guy Royal*a  

* Corresponding authors

a Université Joseph Fourier Grenoble I, Département de Chimie Moléculaire, UMR CNRS-5250, BP 53, 38041 Grenoble Cedex 9, France
E-mail: guy.royal@ujf-grenoble.fr

b Laboratoire de Chimie (UMR 5182), École Normale Supérieure de Lyon/CNRS Université de Lyon 1, Lyon, France

c Photochemical Nanosciences Laboratory and SolarChem Center, Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
E-mail: alberto.credi@unibo.it

Abstract

The behavior of a pyridinium-substituted dimethyldihydropyrene photo-switch under aerobic conditions was investigated. During irradiation with red light (λ ≥ 630 nm), this compound plays the role of oxygen sensitizer and is quantitatively converted into an endoperoxide derivative. The photo-produced endoperoxide then thermally releases singlet oxygen to regenerate the starting compound.

Graphical abstract: Reactivity of a pyridinium-substituted dimethyldihydropyrene switch under aerobic conditions: self-sensitized photo-oxygenation and thermal release of singlet oxygen

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Article information

DOI
https://doi.org/10.1039/C5CC04763C
Article type
Communication
Submitted
09 Jun 2015
Accepted
16 Jul 2015
First published
16 Jul 2015

Chem. Commun., 2015,51, 13886-13889

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Reactivity of a pyridinium-substituted dimethyldihydropyrene switch under aerobic conditions: self-sensitized photo-oxygenation and thermal release of singlet oxygen

S. Cobo, F. Lafolet, E. Saint-Aman, C. Philouze, C. Bucher, S. Silvi, A. Credi and G. Royal, Chem. Commun., 2015, 51, 13886 DOI: 10.1039/C5CC04763C

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