期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 16, 页码 6581-6584出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201916089
关键词
cations; overcrowded ethylenes; radicals; redox chemistry; thermal equilibrium
资金
- JSPS KAKENHI Grants [JP15H03790, JP18H04376, JP19K15528]
- Japan Science Society
Thermally switchable redox properties have been reported to be due to a change in the spin state of newly designed overcrowded ethylenes, which can adopt closed-shell folded and open-shell twisted forms. In this study, tetrathienylanthraquinodimethane derivatives were designed to be in thermal equilibrium between a more stable folded form and less stable but more donating twisted diradical in solution, so that the oxidation potential can be controlled by heating/cooling. This is the first example of a switching of redox properties based on a thermally equilibrated twisted diradical, which can be more readily oxidized to the twisted dication.
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