TY - JOUR
T1 - Electrochemically-switched 2nd order non-linear optical response in an arylimido-polyoxometalate with high contrast and cyclability
AU - Hood, Bethany Rose
AU - de Coene, Yovan
AU - Vieira Torre Do Vale Froes, Afonso
AU - Jones, Claire
AU - Beaujean, Pierre
AU - Liegois, Vincent
AU - MacMillan, Fraser
AU - Champagne, Benoit
AU - Clays, Koen
AU - Fielden, John
PY - 2022/11/30
Y1 - 2022/11/30
N2 - 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.
AB - 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.
U2 - 10.1002/anie.202215537
DO - 10.1002/anie.202215537
M3 - Article
JO - Angewandte Chemie International Edition
JF - Angewandte Chemie International Edition
SN - 1433-7851
ER -