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Iminothioindoxyl as a molecular photoswitch with 100 nm band separation in the visible range

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Listed:
  • Mark W. H. Hoorens

    (University Medical Center Groningen, University of Groningen
    University of Groningen)

  • Miroslav Medved’

    (Palacký University in Olomouc
    Matej Bel University)

  • Adèle D. Laurent

    (University of Nantes, CEISAM UMR CNRS 6230)

  • Mariangela Di Donato

    (European Laboratory for Non Linear Spectroscopy (LENS) via N. Carrara 1
    INO, Istituto Nazionale di Ottica)

  • Samuele Fanetti

    (INO, Istituto Nazionale di Ottica
    University of Amsterdam)

  • Laura Slappendel

    (University of Groningen)

  • Michiel Hilbers

    (Radboud University)

  • Ben L Feringa

    (University of Groningen)

  • Wybren Buma

    (Radboud University
    University of Florence)

  • Wiktor Szymanski

    (University Medical Center Groningen, University of Groningen
    University of Groningen)

Abstract

Light is an exceptional external stimulus for establishing precise control over the properties and functions of chemical and biological systems, which is enabled through the use of molecular photoswitches. Ideal photoswitches are operated with visible light only, show large separation of absorption bands and are functional in various solvents including water, posing an unmet challenge. Here we show a class of fully-visible-light-operated molecular photoswitches, Iminothioindoxyls (ITIs) that meet these requirements. ITIs show a band separation of over 100 nm, isomerize on picosecond time scale and thermally relax on millisecond time scale. Using a combination of advanced spectroscopic and computational techniques, we provide the rationale for the switching behavior of ITIs and the influence of structural modifications and environment, including aqueous solution, on their photochemical properties. This research paves the way for the development of improved photo-controlled systems for a wide variety of applications that require fast responsive functions.

Suggested Citation

  • Mark W. H. Hoorens & Miroslav Medved’ & Adèle D. Laurent & Mariangela Di Donato & Samuele Fanetti & Laura Slappendel & Michiel Hilbers & Ben L Feringa & Wybren Buma & Wiktor Szymanski, 2019. "Iminothioindoxyl as a molecular photoswitch with 100 nm band separation in the visible range," Nature Communications, Nature, vol. 10(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10251-8
    DOI: 10.1038/s41467-019-10251-8
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