Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.

Six homodinuclear lanthanide complexes with formula [Ln2(l2-9-AC)4(9-AC)2(phen)2] (Ln(III) = Nd (1), Eu (2), Gd (3), Tb (4), Er (5) and Yb (6) are reported and complexes 1-3 and 6 are structurally characterized. 9-HAC = 9-anthracenecarboxylic acid, phen = 1,10-phenanthroline. The luminescence proper...

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Detalles Bibliográficos
Autores: Casanovas Bayo, Berta, Speed, S., Maury, O., Font Bardia, Ma. Mercedes, Vicente Castillo, Ramón
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/162531
Acceso en línea:https://hdl.handle.net/2445/162531
Access Level:acceso abierto
Palabra clave:Magnetisme
Luminescència
Metalls de terres rares
Magnetism
Luminescence
Rare earth metals
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spelling Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.Casanovas Bayo, BertaSpeed, S.Maury, O.Font Bardia, Ma. MercedesVicente Castillo, RamónMagnetismeLuminescènciaMetalls de terres raresMagnetismLuminescenceRare earth metalsSix homodinuclear lanthanide complexes with formula [Ln2(l2-9-AC)4(9-AC)2(phen)2] (Ln(III) = Nd (1), Eu (2), Gd (3), Tb (4), Er (5) and Yb (6) are reported and complexes 1-3 and 6 are structurally characterized. 9-HAC = 9-anthracenecarboxylic acid, phen = 1,10-phenanthroline. The luminescence properties of compounds 1-6 have been studied at different temperatures in the solid state and show the sensitization of the 4f-4f emission bands in the NIR range for compounds 1, 5 and 6. The molar magnetic susceptibility measurements of 1-6 in the 2-300 K temperature range indicate weak antiferromagnetic exchange for the isotropic Gd(III) compound 3. Furthermore, slow relaxation of the magnetization is found in complexes 5 and 6 with effective energy barriers of 9.5 cm 1 (0.1 T) and 22.7 cm 1 (0.15 T), respectively.Elsevier Ltd2020202120192020info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion27 p.application/pdfhttps://hdl.handle.net/2445/162531Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.poly.2019.05.006Polyhedron, 2019, vol. 169, p. 187-194https://doi.org/10.1016/j.poly.2019.05.006cc-by-nc-nd (c) Elsevier Ltd, 2019http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1625312026-05-29T05:05:01Z
dc.title.none.fl_str_mv Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.
title Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.
spellingShingle Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.
Casanovas Bayo, Berta
Magnetisme
Luminescència
Metalls de terres rares
Magnetism
Luminescence
Rare earth metals
title_short Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.
title_full Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.
title_fullStr Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.
title_full_unstemmed Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.
title_sort Homodinuclear lanthanide 9-anthracenecarboxylate complexes: field induced SMM and NIR-luminescence.
dc.creator.none.fl_str_mv Casanovas Bayo, Berta
Speed, S.
Maury, O.
Font Bardia, Ma. Mercedes
Vicente Castillo, Ramón
author Casanovas Bayo, Berta
author_facet Casanovas Bayo, Berta
Speed, S.
Maury, O.
Font Bardia, Ma. Mercedes
Vicente Castillo, Ramón
author_role author
author2 Speed, S.
Maury, O.
Font Bardia, Ma. Mercedes
Vicente Castillo, Ramón
author2_role author
author
author
author
dc.subject.none.fl_str_mv Magnetisme
Luminescència
Metalls de terres rares
Magnetism
Luminescence
Rare earth metals
topic Magnetisme
Luminescència
Metalls de terres rares
Magnetism
Luminescence
Rare earth metals
description Six homodinuclear lanthanide complexes with formula [Ln2(l2-9-AC)4(9-AC)2(phen)2] (Ln(III) = Nd (1), Eu (2), Gd (3), Tb (4), Er (5) and Yb (6) are reported and complexes 1-3 and 6 are structurally characterized. 9-HAC = 9-anthracenecarboxylic acid, phen = 1,10-phenanthroline. The luminescence properties of compounds 1-6 have been studied at different temperatures in the solid state and show the sensitization of the 4f-4f emission bands in the NIR range for compounds 1, 5 and 6. The molar magnetic susceptibility measurements of 1-6 in the 2-300 K temperature range indicate weak antiferromagnetic exchange for the isotropic Gd(III) compound 3. Furthermore, slow relaxation of the magnetization is found in complexes 5 and 6 with effective energy barriers of 9.5 cm 1 (0.1 T) and 22.7 cm 1 (0.15 T), respectively.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/162531
url https://hdl.handle.net/2445/162531
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.poly.2019.05.006
Polyhedron, 2019, vol. 169, p. 187-194
https://doi.org/10.1016/j.poly.2019.05.006
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier Ltd, 2019
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier Ltd, 2019
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 27 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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