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Electrochemically-Switched 2nd Order Non-Linear Optical Response in an Arylimido-Polyoxometalate with High Contrast and Cyclability.
Hood, Bethany R; de Coene, Yovan; Torre Do Vale Froes, Afonso V; Jones, Claire F; Beaujean, Pierre; Liégeois, Vincent; MacMillan, Fraser; Champagne, Benoît; Clays, Koen; Fielden, John.
Affiliation
  • Hood BR; School of Chemistry, University of EastAnglia, Norwich, NR4 7TJ, UK.
  • de Coene Y; Department of Chemistry, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium.
  • Torre Do Vale Froes AV; School of Chemistry, University of EastAnglia, Norwich, NR4 7TJ, UK.
  • Jones CF; School of Chemistry, University of EastAnglia, Norwich, NR4 7TJ, UK.
  • Beaujean P; Laboratory of Theoretical Chemistry, Unit of Theoretical and Structural Physical Chemistry, NISM (Namur Institute of Structured Matter), University of Namur, Rue de Bruxelles, 61, 5000, Namur, Belgium.
  • Liégeois V; Laboratory of Theoretical Chemistry, Unit of Theoretical and Structural Physical Chemistry, NISM (Namur Institute of Structured Matter), University of Namur, Rue de Bruxelles, 61, 5000, Namur, Belgium.
  • MacMillan F; School of Chemistry, University of EastAnglia, Norwich, NR4 7TJ, UK.
  • Champagne B; Laboratory of Theoretical Chemistry, Unit of Theoretical and Structural Physical Chemistry, NISM (Namur Institute of Structured Matter), University of Namur, Rue de Bruxelles, 61, 5000, Namur, Belgium.
  • Clays K; Department of Chemistry, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium.
  • Fielden J; School of Chemistry, University of EastAnglia, Norwich, NR4 7TJ, UK.
Angew Chem Int Ed Engl ; 62(5): e202215537, 2023 Jan 26.
Article in En | MEDLINE | ID: mdl-36448963
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.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Angew Chem Int Ed Engl Year: 2023 Document type: Article Affiliation country: Reino Unido
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Angew Chem Int Ed Engl Year: 2023 Document type: Article Affiliation country: Reino Unido