Issue 9, 2015

Reversible oxygen addition on a triplet sensitizer molecule: protection from excited state depopulation

Abstract

We demonstrate that photoactivated oxygen addition to diphenylanthracene moities can be used as a tool for protection of porphyrin's phosphorescence against oxygen quenching. Phosphorescent palladium(II) tetrabenzoporphyrin, covalently linked to four diphenylanthracene moieties, was synthesized and studied. Upon irradiation with ambient light or red laser in solution in air, addition of oxygen and formation of the corresponding endoperoxides were observed. Heating of the irradiated samples afforded the parent porphyrin material.

Graphical abstract: Reversible oxygen addition on a triplet sensitizer molecule: protection from excited state depopulation

Supplementary files

Article information

Article type
Paper
Submitted
31 Oct 2014
Accepted
21 Jan 2015
First published
28 Jan 2015
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2015,17, 6501-6510

Author version available

Reversible oxygen addition on a triplet sensitizer molecule: protection from excited state depopulation

M. A. Filatov, E. Heinrich, D. Busko, I. Z. Ilieva, K. Landfester and S. Baluschev, Phys. Chem. Chem. Phys., 2015, 17, 6501 DOI: 10.1039/C4CP05025H

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