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

Detalhes bibliográficos
Autor(a) principal: Beira, Maria
Data de Publicação: 2017
Outros Autores: Daniel, Carla, Almeida, Pedro L., Corvo, Marta C., Rosatella, Andreia, Afonso, Carlos A. M., Sebastião, Pedro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/12367
Resumo: In 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.
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spelling H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effectsH-1 NMRRelaxometryDiffusometryMagneticNonmagneticIonic liquidCosolventTemperature effectsIn 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.American Chemical SocietyRCIPLBeira, MariaDaniel, CarlaAlmeida, Pedro L.Corvo, Marta C.Rosatella, AndreiaAfonso, Carlos A. M.Sebastião, Pedro2020-11-10T16:00:45Z2017-12-282017-12-28T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/12367engBEIRA, 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. 11472-114841520-610610.1021/acs.jpcb.7b07929metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T10:05:07Zoai:repositorio.ipl.pt:10400.21/12367Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:20:28.178392Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects
title H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects
spellingShingle H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects
Beira, Maria
H-1 NMR
Relaxometry
Diffusometry
Magnetic
Nonmagnetic
Ionic liquid
Cosolvent
Temperature effects
title_short H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects
title_full H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects
title_fullStr H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects
title_full_unstemmed H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects
title_sort H-1 NMR relaxometry and diffusometry study of magnetic and nonmagnetic ionic liquid-based solutions: cosolvent and temperature effects
author Beira, Maria
author_facet Beira, Maria
Daniel, Carla
Almeida, Pedro L.
Corvo, Marta C.
Rosatella, Andreia
Afonso, Carlos A. M.
Sebastião, Pedro
author_role author
author2 Daniel, Carla
Almeida, Pedro L.
Corvo, Marta C.
Rosatella, Andreia
Afonso, Carlos A. M.
Sebastião, Pedro
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Beira, Maria
Daniel, Carla
Almeida, Pedro L.
Corvo, Marta C.
Rosatella, Andreia
Afonso, Carlos A. M.
Sebastião, Pedro
dc.subject.por.fl_str_mv H-1 NMR
Relaxometry
Diffusometry
Magnetic
Nonmagnetic
Ionic liquid
Cosolvent
Temperature effects
topic H-1 NMR
Relaxometry
Diffusometry
Magnetic
Nonmagnetic
Ionic liquid
Cosolvent
Temperature effects
description In 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.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-28
2017-12-28T00:00:00Z
2020-11-10T16:00:45Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.21/12367
url http://hdl.handle.net/10400.21/12367
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv BEIRA, 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. 11472-11484
1520-6106
10.1021/acs.jpcb.7b07929
dc.rights.driver.fl_str_mv metadata only access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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