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

Hood, Bethany Rose and de Coene, Yovan and Vieira Torre Do Vale Froes, Afonso and Jones, Claire and Beaujean, Pierre and Liegois, Vincent and MacMillan, Fraser and Champagne, Benoit and Clays, Koen and Fielden, John (2023) Electrochemically-switched 2nd order non-linear optical response in an arylimido-polyoxometalate with high contrast and cyclability. Angewandte Chemie International Edition, 62 (5): e202215537. 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:
Journal Article
Journal or Publication Title:
Angewandte Chemie International Edition
Uncontrolled Keywords:
Research Output Funding/yes_externally_funded
Subjects:
?? donor-acceptor systemsmolecular devicesnonlinear opticspolyoxometalatesspectroelectrochemistryyes - externally fundedyesgeneral chemistrycatalysischemistry(all) ??
ID Code:
186861
Deposited By:
Deposited On:
21 Feb 2023 09:30
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 12:00