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Computational design of a molecular triple photoswitch for wavelength-selective control

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Abstract

A small single molecule with multiple photoswitchable subunits, selectively and independently controllable by light of different wavelengths, is highly attractive for applications in multi-responsive materials and biological sciences. Herein, triple photoswitches are presented consisting of three independent azobenzene (AB) subunits that share a common central phenyl ring: the meta-trisazobenzenes (MTA). It is the unique meta-connectivity pattern leading to decoupling of all azo-subunits although they do overlap spatially. Based on this pattern, we design a triple MTA photoswitch, as proof-of-principle, with three different, electronically independent AB branches on the computer, which can be individually photo-excited to trigger ultra-fast EZ isomerization at the selected AB branch.

Graphical abstract: Computational design of a molecular triple photoswitch for wavelength-selective control

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Publication details

The article was received on 30 Jul 2018, accepted on 20 Sep 2018 and first published on 21 Sep 2018


Article type: Edge Article
DOI: 10.1039/C8SC03379J
Citation: Chem. Sci., 2018, Advance Article
  • Open access: Creative Commons BY-NC license
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    Computational design of a molecular triple photoswitch for wavelength-selective control

    C. Yang, C. Slavov, H. A. Wegner, J. Wachtveitl and A. Dreuw, Chem. Sci., 2018, Advance Article , DOI: 10.1039/C8SC03379J

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