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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 E ? Z isomerization at the selected AB branch.

SUBMITTER: Yang C

PROVIDER: S-EPMC6289168 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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

Yang Chong C Slavov Chavdar C Wegner Hermann A HA Wachtveitl Josef J Dreuw Andreas A

Chemical science 20180921 46

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 <i>meta</i>-trisazobenzenes (MTA). It is the unique meta-connectivity pattern leading to decoupling of all azo-subunits ...[more]

PMID: 30627390

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