Controlling azobenzene photoswitching through combined ortho-fluorination and -amination

Z. Ahmed; A. Siiskonen; M. Virkki; A. Priimägi

doi:10.1039/C7CC07308A

Controlling azobenzene photoswitching through combined ortho-fluorination and -amination

Z. Ahmed, A. Siiskonen, M. Virkki, A. Priimägi

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Abstract

We present a series of visible-light-absorbing azobenzene photoswitches with cis-lifetimes ranging from one second to three days. We combine ortho-fluorination to control the cis-lifetimes, and ortho-amination to boost the visible-light absorption. The synthesis is accomplished by selectively replacing one or more ortho-fluorines with amines in the ortho-fluoroazobenzene precursors.

Original language	English
Pages (from-to)	12520-12523
Number of pages	4
Journal	Chemical Communications
Volume	53
Issue number	93
DOIs	https://doi.org/10.1039/C7CC07308A
Publication status	Published - 2017
Publication type	A1 Journal article-refereed

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10.1039/C7CC07308ALicence: CC BY-NC

c7cc07308a
This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
Final published version, 1.71 MBLicence: CC BY-NC

http://urn.fi/URN:NBN:fi:tty-201712042303Licence: CC BY-NC

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title = "Controlling azobenzene photoswitching through combined ortho-fluorination and -amination",

abstract = "We present a series of visible-light-absorbing azobenzene photoswitches with cis-lifetimes ranging from one second to three days. We combine ortho-fluorination to control the cis-lifetimes, and ortho-amination to boost the visible-light absorption. The synthesis is accomplished by selectively replacing one or more ortho-fluorines with amines in the ortho-fluoroazobenzene precursors.",

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AB - We present a series of visible-light-absorbing azobenzene photoswitches with cis-lifetimes ranging from one second to three days. We combine ortho-fluorination to control the cis-lifetimes, and ortho-amination to boost the visible-light absorption. The synthesis is accomplished by selectively replacing one or more ortho-fluorines with amines in the ortho-fluoroazobenzene precursors.

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Controlling azobenzene photoswitching through combined ortho-fluorination and -amination

Abstract

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