Cover Feature: Synthesis of a Negative Photochrome with High Switching Quantum Yields and Capable of Singlet‐Oxygen Production and Storage (Chem. Eur. J. 67/2021)

A dimethyldihydropyrene photochromic system substituted by donor and acceptor units (left) is presented by M. Boggio‐Pasqua, G. Royal, and co‐workers in their Full Paper (DOI: 10.1002/chem.202103003). Such chemical functionalization allows an efficient photo‐isomerization of the compound to its corr...

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Bibliographic Details
Published in:Chemistry : a European journal 2021-12, Vol.27 (67), p.16527-16527
Main Authors: Ziani, Zakaria, Loiseau, Frédérique, Lognon, Elise, Boggio‐Pasqua, Martial, Philouze, Christian, Cobo, Saioa, Royal, Guy
Format: Article
Language:English
Subjects:
dimethyldihydropyrene
endoperoxide
photochromism
singlet oxygen
spin-flip time-dependent density functional theory
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Summary:A dimethyldihydropyrene photochromic system substituted by donor and acceptor units (left) is presented by M. Boggio‐Pasqua, G. Royal, and co‐workers in their Full Paper (DOI: 10.1002/chem.202103003). Such chemical functionalization allows an efficient photo‐isomerization of the compound to its corresponding cyclophanediene isomer (center) when irradiated with red light. This photochrome can also play the role of oxygen photosensitizer and is able to reversibly trap singlet oxygen in the form of endoperoxide derivatives (right) when illuminated at room temperature under aerobic conditions. Artwork by Dr. Damien Jouvenot and Z.Z.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.202103993