Fastest non-ionic azo dyes and transfer of their thermal isomerisation kinetics into liquid-crystalline materials

doi:10.1039/C6CC00403B

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/44225

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Campo DC	Valor	Idioma
dc.contributor.author	Garcia-Amorós, J.	por
dc.contributor.author	Castro, M. C. R.	por
dc.contributor.author	Coelho, P.	por
dc.contributor.author	Raposo, M. Manuela M.	por
dc.contributor.author	Velasco, D.	por
dc.date.accessioned	2017-01-09T14:13:47Z	-
dc.date.issued	2016	-
dc.date.submitted	2016	-
dc.identifier.citation	Garcia-Amoros, J., Castro, M. C. R., Coelho, P., Raposo, M. M. M., & Velasco, D. (2016). Fastest non-ionic azo dyes and transfer of their thermal isomerisation kinetics into liquid-crystalline materials. Chemical Communications, 52(29), 5132-5135. doi: 10.1039/c6cc00403b	por
dc.identifier.issn	1359-7345	-
dc.identifier.uri	https://hdl.handle.net/1822/44225	-
dc.description.abstract	Push-pull bithienylpyrrole-based azo dyes exhibit thermal isomerisation rates as fast as 1.4 μs in acetonitrile at 298 K becoming, thus, the fastest neutral azo dyes reported so far. These remarkably low relaxation times can be transferred into liquid-crystalline matrixes enabling light-triggered oscillations in the optical density of the final material up to 11 kHz under ambient conditions.	por
dc.description.sponsorship	Financial support for this research was obtained from the Ministerio de Economía y Competitividad (Spain, CTQ2012-36074 and CTQ2015-65770-P). The authors thank Prof. Santi Nonell for his help with the flash photolysis measurements. Thanks are also due to: Fundação para a Ciência e Tecnologia (FCT) for a PhD grant to M. C. R. Castro (SFRH/BD/78037/2011); FEDERCOMPETE for financial support through the Centro de Quı ´mica – UM, PEst-C/QUI/UI0686/2013 (FCOMP-01-0124-FEDER-037302). The NMR spectrometer Bruker Avance III 400 is part of the National NMR Network and was purchased within the framework of the National Program for Scientific Re-equipment, contract REDE/1517/RMN/2005 with funds from POCI 2010 (FEDER) and FCT.	por
dc.language.iso	eng	por
dc.publisher	Royal Society of Chemistry	por
dc.relation	info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F78037%2F2011/PT	por
dc.relation	info:eu-repo/grantAgreement/FCT/COMPETE/132953/PT	por
dc.relation	info:eu-repo/grantAgreement/FCT/COMPETE/132953/PT	por
dc.rights	openAccess	-
dc.subject	Photochromism	por
dc.subject	Azo dyes	por
dc.subject	Heterocycles	por
dc.subject	Synthesis	por
dc.subject	Liquid-crystalline materials	por
dc.subject	Molecular switches	por
dc.subject	Push-pull heterocyclic systems	por
dc.title	Fastest non-ionic azo dyes and transfer of their thermal isomerisation kinetics into liquid-crystalline materials	por
dc.type	article	por
dc.peerreviewed	yes	por
dc.relation.publisherversion	http://dx.doi.org/10.1039/C6CC00403B	por
sdum.publicationstatus	info:eu-repo/semantics/publishedVersion	por
oaire.citationStartPage	5132	por
oaire.citationEndPage	5135	por
oaire.citationIssue	29	por
oaire.citationTitle	Chemical Communications	por
oaire.citationVolume	52	por
dc.identifier.doi	10.1039/C6CC00403B	por
dc.subject.fos	Ciências Naturais::Ciências Químicas	por
dc.subject.wos	Science & Technology	por
sdum.journal	Chemical Communications	por
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