New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets

Five new β-diketonate Ce3+ mononuclear complexes, [Ce(Btfa)3(H2O)2] (1), [Ce(Btfa)3(phen)] (2), [Ce (Btfa)3(bipy)] (3), [Ce(Btfa)3(terpy)] (4) and [Ce(Btfa)3(bathophen)(DMF)] (5), where Btfa− = 4,4,4-trifluoro-1- phenyl-1,3-butanedionate, phen = 1,10-phenanthroline, bipy = 2,2’-bipyridyl, terpy = 2,...

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Autores: Tubau Ribot, Ànnia, Gómez Coca, Silvia, Speed Castro, Saskia, Font Bardia, Ma. Mercedes, Vicente Castillo, Ramón
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/223181
Acceso en línea:https://hdl.handle.net/2445/223181
Access Level:acceso abierto
Palabra clave:Metalls de terres rares
Inducció magnètica
Compostos organometàl·lics
Rare earth metals
Magnetic induction
Organometallic compounds
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spelling New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnetsTubau Ribot, ÀnniaGómez Coca, SilviaSpeed Castro, SaskiaFont Bardia, Ma. MercedesVicente Castillo, RamónMetalls de terres raresInducció magnèticaCompostos organometàl·licsRare earth metalsMagnetic inductionOrganometallic compoundsFive new β-diketonate Ce3+ mononuclear complexes, [Ce(Btfa)3(H2O)2] (1), [Ce(Btfa)3(phen)] (2), [Ce (Btfa)3(bipy)] (3), [Ce(Btfa)3(terpy)] (4) and [Ce(Btfa)3(bathophen)(DMF)] (5), where Btfa− = 4,4,4-trifluoro-1- phenyl-1,3-butanedionate, phen = 1,10-phenanthroline, bipy = 2,2’-bipyridyl, terpy = 2,2’:6’,2’’-terpyridine and bathophen = 4,7-diphenyl-1,10-phenanthroline, have been synthesized and structurally characterized through X-ray diffraction of single crystals. The central Ce3+ atom displays a coordination number of 8 for 1, 2 and 3 and of 9 for 4 and 5. Under a 0 T external magnetic field, none of the given compounds exhibits single molecule magnet (SMM) behaviour. However, a small magnetic field, between 0.02 and 0.1 T, is enough for all the compounds to exhibit slow relaxation of the magnetization. A comprehensive magnetic analysis, with experimental magnetic data and ab initio calculations, was undertaken for all the complexes, and the study highlights the significance of the different spin relaxation mechanisms that must be considered for a Ce3+ lanthanide ion.Royal Society of Chemistry2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/223181Articles publicats en revistes (Química Inorgànica i Orgànica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1039/d4dt00848kDalton Transactions, 2024, vol. 53, num.22, p. 9387-9405https://doi.org/10.1039/d4dt00848kcc-by-nc (c) Tubau Ribot, Ànnia et al., 2024http://creativecommons.org/licenses/by-nc/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2231812026-05-27T06:46:51Z
dc.title.none.fl_str_mv New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets
title New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets
spellingShingle New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets
Tubau Ribot, Ànnia
Metalls de terres rares
Inducció magnètica
Compostos organometàl·lics
Rare earth metals
Magnetic induction
Organometallic compounds
title_short New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets
title_full New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets
title_fullStr New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets
title_full_unstemmed New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets
title_sort New series of mononuclear β-diketonate cerium(iii) field induced single-molecule magnets
dc.creator.none.fl_str_mv Tubau Ribot, Ànnia
Gómez Coca, Silvia
Speed Castro, Saskia
Font Bardia, Ma. Mercedes
Vicente Castillo, Ramón
author Tubau Ribot, Ànnia
author_facet Tubau Ribot, Ànnia
Gómez Coca, Silvia
Speed Castro, Saskia
Font Bardia, Ma. Mercedes
Vicente Castillo, Ramón
author_role author
author2 Gómez Coca, Silvia
Speed Castro, Saskia
Font Bardia, Ma. Mercedes
Vicente Castillo, Ramón
author2_role author
author
author
author
dc.subject.none.fl_str_mv Metalls de terres rares
Inducció magnètica
Compostos organometàl·lics
Rare earth metals
Magnetic induction
Organometallic compounds
topic Metalls de terres rares
Inducció magnètica
Compostos organometàl·lics
Rare earth metals
Magnetic induction
Organometallic compounds
description Five new β-diketonate Ce3+ mononuclear complexes, [Ce(Btfa)3(H2O)2] (1), [Ce(Btfa)3(phen)] (2), [Ce (Btfa)3(bipy)] (3), [Ce(Btfa)3(terpy)] (4) and [Ce(Btfa)3(bathophen)(DMF)] (5), where Btfa− = 4,4,4-trifluoro-1- phenyl-1,3-butanedionate, phen = 1,10-phenanthroline, bipy = 2,2’-bipyridyl, terpy = 2,2’:6’,2’’-terpyridine and bathophen = 4,7-diphenyl-1,10-phenanthroline, have been synthesized and structurally characterized through X-ray diffraction of single crystals. The central Ce3+ atom displays a coordination number of 8 for 1, 2 and 3 and of 9 for 4 and 5. Under a 0 T external magnetic field, none of the given compounds exhibits single molecule magnet (SMM) behaviour. However, a small magnetic field, between 0.02 and 0.1 T, is enough for all the compounds to exhibit slow relaxation of the magnetization. A comprehensive magnetic analysis, with experimental magnetic data and ab initio calculations, was undertaken for all the complexes, and the study highlights the significance of the different spin relaxation mechanisms that must be considered for a Ce3+ lanthanide ion.
publishDate 2024
dc.date.none.fl_str_mv 2024
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/2445/223181
url https://hdl.handle.net/2445/223181
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/10.1039/d4dt00848k
Dalton Transactions, 2024, vol. 53, num.22, p. 9387-9405
https://doi.org/10.1039/d4dt00848k
dc.rights.none.fl_str_mv cc-by-nc (c) Tubau Ribot, Ànnia et al., 2024
http://creativecommons.org/licenses/by-nc/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc (c) Tubau Ribot, Ànnia et al., 2024
http://creativecommons.org/licenses/by-nc/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv Articles publicats en revistes (Química Inorgànica i Orgànica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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