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Photo-controlled Chirality Transfer and FRET Effects based on Pseudo[3]rotaxane

Abstract

The use of light to regulate the chirality of supramolecular assemblies in a non-invasive manner remains a challenge. Herein, we reported a novel photochromic pseudo[3]rotaxane based on (R/S)-2,2'-binaphthyl secondary ammonium salt guest (2) and anthracene-bridged bis(dibenzo-24-crown-8) (1), which featurs a chirality transfer and fluorescence resonance energy transfer (FRET) from 2 to 1. Benefiting from the photo-oxidation of anthracene, the induced circular dichroism (ICD) signals of (R/S)-2@1 can be switched off / on by irradiation with 365 nm UV light and heating. This noncovalent supramolecular assembly strategy provides us with unique opportunities to design and construct more smart photo-responsive chiral molecular switches.

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Publication details

The article was received on 05 Sep 2019, accepted on 11 Oct 2019 and first published on 11 Oct 2019


Article type: Communication
DOI: 10.1039/C9CC06917H
Chem. Commun., 2019, Accepted Manuscript

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    Photo-controlled Chirality Transfer and FRET Effects based on Pseudo[3]rotaxane

    H. Fu, H. Zhang, H. Zhang and Y. Liu, Chem. Commun., 2019, Accepted Manuscript , DOI: 10.1039/C9CC06917H

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