An azobenzene-based photoswitchable crystal growth modifier

An aspartic acid functionalised azobenzene derivative is found to be a light-switchable crystal growth modifier of calcite. UV irradiation of the molecule reversibly switches it to the cis isomer, which is a significantly less effective crystal growth inhibitor than the trans isomer. Visible light,...

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Main Authors: Nealon, Gareth, Brown, David, Jones, Franca, Parkinson, Gordon, Ogden, Mark
Format: Journal Article
Published: The Royal Society of Chemistry 2017
Online Access:http://hdl.handle.net/20.500.11937/51380
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author Nealon, Gareth
Brown, David
Jones, Franca
Parkinson, Gordon
Ogden, Mark
author_facet Nealon, Gareth
Brown, David
Jones, Franca
Parkinson, Gordon
Ogden, Mark
author_sort Nealon, Gareth
building Curtin Institutional Repository
collection Online Access
description An aspartic acid functionalised azobenzene derivative is found to be a light-switchable crystal growth modifier of calcite. UV irradiation of the molecule reversibly switches it to the cis isomer, which is a significantly less effective crystal growth inhibitor than the trans isomer. Visible light, or heat switches the inhibitor back “on”. Extended irradiation degrades the inhibitor such that it is irreversibly switched “off”. It was shown that the trans isomer is preferentially absorbed on to the crystal surface, which is consistent with its greater efficacy as an inhibitor.
first_indexed 2025-11-14T09:47:53Z
format Journal Article
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institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T09:47:53Z
publishDate 2017
publisher The Royal Society of Chemistry
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spelling curtin-20.500.11937-513802018-02-05T23:48:43Z An azobenzene-based photoswitchable crystal growth modifier Nealon, Gareth Brown, David Jones, Franca Parkinson, Gordon Ogden, Mark An aspartic acid functionalised azobenzene derivative is found to be a light-switchable crystal growth modifier of calcite. UV irradiation of the molecule reversibly switches it to the cis isomer, which is a significantly less effective crystal growth inhibitor than the trans isomer. Visible light, or heat switches the inhibitor back “on”. Extended irradiation degrades the inhibitor such that it is irreversibly switched “off”. It was shown that the trans isomer is preferentially absorbed on to the crystal surface, which is consistent with its greater efficacy as an inhibitor. 2017 Journal Article http://hdl.handle.net/20.500.11937/51380 10.1039/c6ce02514e The Royal Society of Chemistry fulltext
spellingShingle Nealon, Gareth
Brown, David
Jones, Franca
Parkinson, Gordon
Ogden, Mark
An azobenzene-based photoswitchable crystal growth modifier
title An azobenzene-based photoswitchable crystal growth modifier
title_full An azobenzene-based photoswitchable crystal growth modifier
title_fullStr An azobenzene-based photoswitchable crystal growth modifier
title_full_unstemmed An azobenzene-based photoswitchable crystal growth modifier
title_short An azobenzene-based photoswitchable crystal growth modifier
title_sort azobenzene-based photoswitchable crystal growth modifier
url http://hdl.handle.net/20.500.11937/51380