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H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects

2017-12-28Journal article Restricted access
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dc.contributor.authorBeira, Maria
dc.contributor.authorDaniel, Carla
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorCorvo, Marta C.
dc.contributor.authorRosatella, Andreia
dc.contributor.authorAfonso, Carlos A. M.
dc.contributor.authorSebastião, Pedro
dc.date.accessioned2020-11-10T16:00:45Z
dc.date.available2020-11-10T16:00:45Z
dc.date.issued2017-12-28
dc.description.abstractIn this work, H-1 NMR relaxometry and diffusometry as well as viscometry experiments were carried out as a means to study the molecular dynamics of magnetic and nonmagnetic ionic liquid-based systems. In order to evaluate the effect of a cosolvent on the superparamagnetic properties observed for Aliquat-iron-based magnetic ionic liquids, mixtures comprising different concentrations, 1% and 10% (v/v), of DMSO-d6 were prepared and studied. The results for both magnetic and nonmagnetic systems were consistently analyzed an suggest that, when at low concentrations, DMSO-d6 promotes more structured ionic arrangements, thus enhancing these superparamagnetic properties. Furthermore, the analysis of temperature and water concentration effects allowed to conclude that neither one of these variables significantly affected the superparamagnetic properties of the studied magnetic ionic liquids.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBEIRA, Maria; [et al] – H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects. Journal of Physical Chemistry B. ISSN 1520-6106. Vol. 121, N.º 51 (2017), pp. 11472-11484pt_PT
dc.identifier.doi10.1021/acs.jpcb.7b07929pt_PT
dc.identifier.issn1520-6106
dc.identifier.urihttp://hdl.handle.net/10400.21/12367
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Chemical Societypt_PT
dc.relationUID/CTM/01540/2013 - FCTpt_PT
dc.relationUID/ DTP/04138/2013 - FCTpt_PT
dc.relationPOCI-01-0145- FEDER-007688pt_PT
dc.relation.publisherversionhttps://pubs.acs.org/doi/pdf/10.1021/acs.jpcb.7b07929pt_PT
dc.subjectH-1 NMRpt_PT
dc.subjectRelaxometrypt_PT
dc.subjectDiffusometrypt_PT
dc.subjectMagneticpt_PT
dc.subjectNonmagneticpt_PT
dc.subjectIonic liquidpt_PT
dc.subjectCosolventpt_PT
dc.subjectTemperature effectspt_PT
dc.titleH-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effectspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50025%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F75045%2F2010/PT
oaire.citation.endPage11484pt_PT
oaire.citation.issue51pt_PT
oaire.citation.startPage11472pt_PT
oaire.citation.titleJournal of Physical Chemistry Bpt_PT
oaire.citation.volume121pt_PT
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNameBeira
person.familyNameDaniel
person.familyNameMarques de Almeida
person.familyNameCorvo
person.familyNameRosatella
person.familyNameOliveira Sebastião
person.givenNameMaria J.
person.givenNameCarla
person.givenNamePedro
person.givenNameMarta Cristina Parracho Cançado
person.givenNameAndreia
person.givenNamePedro José
person.identifierM-9636-2013
person.identifier.ciencia-id2D1F-3E5E-F3C6
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person.identifier.ciencia-idBA1A-5C94-CA3A
person.identifier.ciencia-id951B-491D-E79C
person.identifier.ciencia-id6712-042E-971B
person.identifier.orcid0000-0003-4320-9683
person.identifier.orcid0000-0002-1221-2057
person.identifier.orcid0000-0001-7356-8455
person.identifier.orcid0000-0003-0890-6133
person.identifier.orcid0000-0002-2691-3110
person.identifier.orcid0000-0001-6450-3019
person.identifier.ridO-4969-2015
person.identifier.ridB-4356-2009
person.identifier.ridM-5674-2013
person.identifier.scopus-author-id55551567700
person.identifier.scopus-author-id57190384213
person.identifier.scopus-author-id6602470713
person.identifier.scopus-author-id34870460100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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