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

• Verfasst von: Yang, Chong [VerfasserIn]
• Verfasst von: Slavov, Chavdar [VerfasserIn]
• Verfasst von: Wegner, Hermann A. [VerfasserIn]
• Verfasst von: Wachtveitl, Josef [VerfasserIn]
• Verfasst von: Dreuw, Andreas [VerfasserIn]
• Titel: Computational design of a molecular triple photoswitch for wavelength-selective control
• Verf.angabe: Chong Yang, Chavdar Slavov, Hermann A. Wegner, Josef Wachtveitl, Andreas Dreuw
• E-Jahr: 2018
• Jahr: 21 Sep 2018
• Umfang: 8 S.
• Fussnoten: Gesehen am 27.03.2020
• Titel Quelle: Enthalten in: Chemical science
• Ort Quelle: Cambridge : RSC, 2010
• Jahr Quelle: 2018
• Band/Heft Quelle: 9(2018), 46, Seite 8665-8672
• ISSN Quelle: 2041-6539
• DOI: doi:10.1039/C8SC03379J
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1696262062

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 E → Z isomerization at the selected AB branch.