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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)
Author(s) -
Ziani Zakaria,
Loiseau Frédérique,
Log Elise,
BoggioPasqua Martial,
Philouze Christian,
Cobo Saioa,
Royal Guy
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202103993
Subject(s) - singlet oxygen , isomerization , photochromism , photochemistry , photosensitizer , chemistry , oxygen , singlet state , acceptor , irradiation , catalysis , excited state , organic chemistry , atomic physics , physics , nuclear physics , condensed matter physics
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.