A light-stimulated molecular switch driven by radical-radical interactions in water

Hao Li; Albert C. Fahrenbach; Ali Coskun; Zhixue Zhu; Gokhan Barin; Yan Li Zhao; Youssry Y. Botros; Jean Pierre Sauvage; J Fraser Stoddart

doi:10.1002/anie.201102510

A light-stimulated molecular switch driven by radical-radical interactions in water

Hao Li, Albert C. Fahrenbach, Ali Coskun, Zhixue Zhu, Gokhan Barin, Yan Li Zhao, Youssry Y. Botros, Jean Pierre Sauvage^*, J Fraser Stoddart

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

99 Scopus citations

Abstract

A redox-controllable bistable [2]rotaxane has been synthesized using templation and click chemistry. With assistance from a sacrificial electron donor, light-triggered switching through numerous cycles can be initiated by radical-pairing interactions between the reduced forms of the cyclophane and the bipyridinium unit in aqueous solution in the absence of air. In the presence of air (O₂), the interactions are reset by donor-acceptor charge transfer.

Original language	English (US)
Pages (from-to)	6782-6788
Number of pages	7
Journal	Angewandte Chemie - International Edition
Volume	50
Issue number	30
DOIs	https://doi.org/10.1002/anie.201102510
State	Published - Jul 18 2011

Keywords

biomimicry
electrochemistry
mechanically interlocked molecules
molecular devices
template synthesis

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1002/anie.201102510

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title = "A light-stimulated molecular switch driven by radical-radical interactions in water",

abstract = "A redox-controllable bistable [2]rotaxane has been synthesized using templation and click chemistry. With assistance from a sacrificial electron donor, light-triggered switching through numerous cycles can be initiated by radical-pairing interactions between the reduced forms of the cyclophane and the bipyridinium unit in aqueous solution in the absence of air. In the presence of air (O2), the interactions are reset by donor-acceptor charge transfer.",

keywords = "biomimicry, electrochemistry, mechanically interlocked molecules, molecular devices, template synthesis",

author = "Hao Li and Fahrenbach, {Albert C.} and Ali Coskun and Zhixue Zhu and Gokhan Barin and Zhao, {Yan Li} and Botros, {Youssry Y.} and Sauvage, {Jean Pierre} and Stoddart, {J Fraser}",

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A light-stimulated molecular switch driven by radical-radical interactions in water. / Li, Hao; Fahrenbach, Albert C.; Coskun, Ali; Zhu, Zhixue; Barin, Gokhan; Zhao, Yan Li; Botros, Youssry Y.; Sauvage, Jean Pierre; Stoddart, J Fraser.

In: Angewandte Chemie - International Edition, Vol. 50, No. 30, 18.07.2011, p. 6782-6788.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - A light-stimulated molecular switch driven by radical-radical interactions in water

AU - Li, Hao

AU - Fahrenbach, Albert C.

AU - Coskun, Ali

AU - Zhu, Zhixue

AU - Barin, Gokhan

AU - Zhao, Yan Li

AU - Botros, Youssry Y.

AU - Sauvage, Jean Pierre

AU - Stoddart, J Fraser

PY - 2011/7/18

Y1 - 2011/7/18

N2 - A redox-controllable bistable [2]rotaxane has been synthesized using templation and click chemistry. With assistance from a sacrificial electron donor, light-triggered switching through numerous cycles can be initiated by radical-pairing interactions between the reduced forms of the cyclophane and the bipyridinium unit in aqueous solution in the absence of air. In the presence of air (O2), the interactions are reset by donor-acceptor charge transfer.

AB - A redox-controllable bistable [2]rotaxane has been synthesized using templation and click chemistry. With assistance from a sacrificial electron donor, light-triggered switching through numerous cycles can be initiated by radical-pairing interactions between the reduced forms of the cyclophane and the bipyridinium unit in aqueous solution in the absence of air. In the presence of air (O2), the interactions are reset by donor-acceptor charge transfer.

KW - biomimicry

KW - electrochemistry

KW - mechanically interlocked molecules

KW - molecular devices

KW - template synthesis

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SN - 1433-7851

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A light-stimulated molecular switch driven by radical-radical interactions in water

Abstract

Keywords

ASJC Scopus subject areas

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