Issue 46, 2018

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

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

Supplementary files

Article information

Article type
Edge Article
Submitted
30 Jūl. 2018
Accepted
20 Sept. 2018
First published
21 Sept. 2018
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2018,9, 8665-8672

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, 9, 8665 DOI: 10.1039/C8SC03379J

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