4.8 Article

Hemithioindigo-Based Trioxobicyclononadiene: 3D Multiswitching of Electronic and Geometric Properties

期刊

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 144, 期 7, 页码 2847-2852

出版社

AMER CHEMICAL SOC
DOI: 10.1021/jacs.1c12364

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资金

  1. Deutsche Forschungsgemeinschaft (DFG) [DU 1414/1-2, SFB 749]
  2. Cluster of Excellence Center for Integrated Protein Science Munich (CIPSM)
  3. European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Programme (PHOTOMECH) [101001794]
  4. European Research Council (ERC) [101001794] Funding Source: European Research Council (ERC)

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Molecular photoswitches that allow precise control over geometrical and electronic changes are highly sought after for the development of responsive nanosystems. In this study, a novel multiphotoswitch architecture is presented, which offers an advantageous combination of property control. The hemithioindigo-based trioxobicyclononadiene (HTI-TOND) has a rigid three-dimensional molecular structure that undergoes different rearrangement reactions upon photochemical and thermal signaling, resulting in reversible access to multiple states with distinct geometric and electronic properties.
Molecular photoswitches that offer simultaneous precise control over geometrical and electronic changes are rare yet highly sought tools for the development of responsive nanosystems. Here we present such an advantageous combination of property control within a novel multiphotoswitch architecture. Hemithioindigo-based trioxobicyclononadiene (HTI-TOND) offers a rigid three-dimensional molecular structure that undergoes different exotic rearrangement reactions upon photochemical and thermal signaling. Three to four different states with distinct geometric and electronic properties can be accessed reversibly in high yields within this molecular framework. Thus, a highly promising and unique switching tool has become available to instill the next level of addressability at the smallest scales.

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