Electrochemically-switched 2nd order non-linear optical response in an arylimido-polyoxometalate with high contrast and cyclability

Hood, Bethany Rose, de Coene, Yovan, Vieira Torre Do Vale Froes, Afonso, Jones, Claire, Beaujean, Pierre, Liegois, Vincent, MacMillan, Fraser ORCID: https://orcid.org/0000-0002-2410-4790, Champagne, Benoit, Clays, Koen and Fielden, John ORCID: https://orcid.org/0000-0001-5963-7792 (2023) Electrochemically-switched 2nd order non-linear optical response in an arylimido-polyoxometalate with high contrast and cyclability. Angewandte Chemie International Edition, 62 (5). ISSN 1433-7851

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Abstract

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.

Item Type: Article
Additional Information: Research Funding: Engineering and Physical Sciences Research Council. Grant Numbers: EP/M00452X/1, EP/S005854/1; University of East Anglia. Grant Numbers: Studentship, Katritzky Scholarship; Leverhulme Trust. Grant Number: RPG-2020-365; Royal Society. Grant Number: Woolfson Research Merit Award; Fonds Wetenschappelijk Onderzoek. Grant Number: 1234222N; FRS-FNRS. Grant Number: Research Associate; FNRS-FRFC. Grant Number: U.G018.19, U.G011.22, RW/GEQ2016, GEQ U.G011.22; Walloon Region. Grant Number: 1610468, RW/GEQ2016, 2110213
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: LivePure Connector
Date Deposited: 15 Dec 2022 04:03
Last Modified: 27 Jan 2023 10:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/90126
DOI: 10.1002/anie.202215537

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