Electrochemically‐Switched 2nd Order Non‐Linear Optical Response in an Arylimido‐Polyoxometalate with High Contrast and Cyclability

Autor:	Bethany R. Hood, Yovan de Coene, Afonso V. Torre Do Vale Froes, Claire F. Jones, Pierre Beaujean, Vincent Liégeois, Fraser MacMillan, Benoît Champagne, Koen Clays, John Fielden
Rok vydání:	2022
Předmět:	Donor-Acceptor Systems Polyoxometalates Molecular Devices Nonlinear Optics General Chemistry General Medicine Spectroelectrochemistry Catalysis
Zdroj:	Angewandte Chemie. 135
ISSN:	1521-3757 0044-8249
DOI:	10.1002/ange.202215537
Popis:	Electrochemically switched 2nd order non-linear optical responses have been demonstrated for the first time in polyoxometalates (POMs), with an arylimido-derivative showing a leading combination of high on/off contrast (94 %), high visible transparency, and cyclability. Spectro-electrochemical and TD-DFT studies indicate that the switch-off results from weakened charge transfer (CT) character of the electronic transitions in the reduced state. This represents the first study of an imido-POM reduced state, and demonstrates the potential of POM hybrids as electrochemically activated molecular switches. ispartof: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION vol:62 issue:5 ispartof: location:Germany status: Published online
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac477edcff092de6dba399591085b27d https://doi.org/10.1002/ange.202215537 Zobrazit plný text záznamu