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Cooperative light-induced breathing of soft porous crystals via azobenzene buckling

Author

Listed:
  • Simon Krause

    (University of Groningen
    Technische Universität Dresden
    Max-Planck-Institute for Solid State Research)

  • Jack D. Evans

    (Technische Universität Dresden
    The University of Adelaide, North Terrace)

  • Volodymyr Bon

    (Technische Universität Dresden)

  • Stefano Crespi

    (University of Groningen)

  • Wojciech Danowski

    (University of Groningen)

  • Wesley R. Browne

    (University of Groningen)

  • Sebastian Ehrling

    (Technische Universität Dresden)

  • Francesco Walenszus

    (Technische Universität Dresden)

  • Dirk Wallacher

    (Helmholtz-Zentrum Berlin für Materialien und Energie)

  • Nico Grimm

    (Helmholtz-Zentrum Berlin für Materialien und Energie)

  • Daniel M. Többens

    (Helmholtz-Zentrum Berlin für Materialien und Energie)

  • Manfred S. Weiss

    (Helmholtz-Zentrum Berlin für Materialien und Energie)

  • Stefan Kaskel

    (Technische Universität Dresden)

  • Ben L. Feringa

    (University of Groningen)

Abstract

Although light is a prominent stimulus for smart materials, the application of photoswitches as light-responsive triggers for phase transitions of porous materials remains poorly explored. Here we incorporate an azobenzene photoswitch in the backbone of a metal-organic framework producing light-induced structural contraction of the porous network in parallel to gas adsorption. Light-stimulation enables non-invasive spatiotemporal control over the mechanical properties of the framework, which ultimately leads to pore contraction and subsequent guest release via negative gas adsorption. The complex mechanism of light-gated breathing is established by a series of in situ diffraction and spectroscopic experiments, supported by quantum mechanical and molecular dynamic simulations. Unexpectedly, this study identifies a novel light-induced deformation mechanism of constrained azobenzene photoswitches relevant to the future design of light-responsive materials.

Suggested Citation

  • Simon Krause & Jack D. Evans & Volodymyr Bon & Stefano Crespi & Wojciech Danowski & Wesley R. Browne & Sebastian Ehrling & Francesco Walenszus & Dirk Wallacher & Nico Grimm & Daniel M. Többens & Manfr, 2022. "Cooperative light-induced breathing of soft porous crystals via azobenzene buckling," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29149-z
    DOI: 10.1038/s41467-022-29149-z
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    References listed on IDEAS

    as
    1. Yongtai Zheng & Hiroshi Sato & Pengyan Wu & Hyung Joon Jeon & Ryotaro Matsuda & Susumu Kitagawa, 2017. "Flexible interlocked porous frameworks allow quantitative photoisomerization in a crystalline solid," Nature Communications, Nature, vol. 8(1), pages 1-6, December.
    2. Simon Krause & Volodymyr Bon & Irena Senkovska & Ulrich Stoeck & Dirk Wallacher & Daniel M. Többens & Stefan Zander & Renjith S. Pillai & Guillaume Maurin & François-Xavier Coudert & Stefan Kaskel, 2016. "A pressure-amplifying framework material with negative gas adsorption transitions," Nature, Nature, vol. 532(7599), pages 348-352, April.
    3. Simon Krause & Jack D. Evans & Volodymyr Bon & Irena Senkovska & Paul Iacomi & Felicitas Kolbe & Sebastian Ehrling & Erik Troschke & Jürgen Getzschmann & Daniel M. Többens & Alexandra Franz & Dirk Wal, 2019. "Towards general network architecture design criteria for negative gas adsorption transitions in ultraporous frameworks," Nature Communications, Nature, vol. 10(1), pages 1-12, December.
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