Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes

Dinuclear lanthanide complexes [((HB(pz)3)2Dy)2(μ-Th2An)] (1Dy) and [((HB(pz)3)2Dy)2(μ-ClCNAn)] (2Dy), based on the hydrotris(pyrazol-1-yl)borate (HBpz3−) scorpionate capping ligand and anilate (An2−) bridging linkers, namely homosubstituted dithiophene- and heterosubstituted chlorocyanoanilate, bea...

Descripción completa

Detalles Bibliográficos
Autores: Manna, Fabio, Oggianu, Mariangela, Galán-Mascarós, José Ramón, Pop, Flavia, Le Guennic, Boris, Mercuri, Maria Laura, Avarvari, Narcis
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
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:2072/537606
Acceso en línea:http://hdl.handle.net/2072/537606
https://doi.org/10.1039/D4DT00175C
Access Level:acceso abierto
Palabra clave:Química
54 - Química
id ES_7fa257218bb81a0d06ebf0a7da34e9f7
oai_identifier_str oai:recercat.cat:2072/537606
network_acronym_str ES
network_name_str España
repository_id_str
spelling Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexesManna, FabioOggianu, MariangelaGalán-Mascarós, José RamónPop, FlaviaLe Guennic, BorisMercuri, Maria LauraAvarvari, NarcisQuímica54 - QuímicaDinuclear lanthanide complexes [((HB(pz)3)2Dy)2(μ-Th2An)] (1Dy) and [((HB(pz)3)2Dy)2(μ-ClCNAn)] (2Dy), based on the hydrotris(pyrazol-1-yl)borate (HBpz3−) scorpionate capping ligand and anilate (An2−) bridging linkers, namely homosubstituted dithiophene- and heterosubstituted chlorocyanoanilate, bearing electron-donating and withdrawing substituents at the 3,6-positions of the benzoquinone core, are reported. 1Dy shows an octacoordinated {N6O2} DyIII ion within a D4h distorted square antiprismatic coordination, an ideal geometry for Single-Molecule Magnet (SMM) behavior, given its oblate nature, whereas in 2Dy the octacoordinated DyIII ion adopts a D2d triangular dodecahedron geometry, while maintaining the same {N6O2} coordination sphere. Both complexes show field-induced single molecule magnet (SMM) behaviour, with tuning of the slow magnetic relaxation as a function of the nature of the substituents at the 3,6-positions of the anilate moiety. A comparison of the Arrhenius fitting parameters for 1Dy and 2Dy supports the hypothesis that square antiprismatic DyIII complexes, as 1Dy, exhibit higher energy barriers. This interpretation is supported by ab initio calculations that also shed light on the crucial role of intermolecular dipolar interactions.Royal Society of Chemistry2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion25 p.application/pdfhttp://hdl.handle.net/2072/537606https://doi.org/10.1039/D4DT00175CRECERCAT (Dipòsit de la Recerca de Catalunya)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésFondazione di Sardegna, Convenzione Triennale tra la Fondazione di Sardegna e gli Atenei Sardi, Regione Sardegna, L.R. 7/2007 annualità 2020, through the SMAWRT project (CUP F75F21001260007)MCIN/AEI/10.13039/501100011033/ through project PID2021-124796OB-I00Generalitat de Catalunya (2021SGR1154)Ministerio de Ciencia e Innovación through the Severo Ochoa Excellence Accreditations CEX2019-000925-S (MCIN/AEI) and CEX2021-001214-SCERCA Programme/Generalitat de CatalunyaCC-BYinfo:eu-repo/semantics/openAccessoai:recercat.cat:2072/5376062026-05-29T05:05:01Z
dc.title.none.fl_str_mv Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes
title Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes
spellingShingle Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes
Manna, Fabio
Química
54 - Química
title_short Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes
title_full Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes
title_fullStr Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes
title_full_unstemmed Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes
title_sort Tuning the slow magnetic relaxation with the substituents in anilate bridged bis(dysprosium) complexes
dc.creator.none.fl_str_mv Manna, Fabio
Oggianu, Mariangela
Galán-Mascarós, José Ramón
Pop, Flavia
Le Guennic, Boris
Mercuri, Maria Laura
Avarvari, Narcis
author Manna, Fabio
author_facet Manna, Fabio
Oggianu, Mariangela
Galán-Mascarós, José Ramón
Pop, Flavia
Le Guennic, Boris
Mercuri, Maria Laura
Avarvari, Narcis
author_role author
author2 Oggianu, Mariangela
Galán-Mascarós, José Ramón
Pop, Flavia
Le Guennic, Boris
Mercuri, Maria Laura
Avarvari, Narcis
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Química
54 - Química
topic Química
54 - Química
description Dinuclear lanthanide complexes [((HB(pz)3)2Dy)2(μ-Th2An)] (1Dy) and [((HB(pz)3)2Dy)2(μ-ClCNAn)] (2Dy), based on the hydrotris(pyrazol-1-yl)borate (HBpz3−) scorpionate capping ligand and anilate (An2−) bridging linkers, namely homosubstituted dithiophene- and heterosubstituted chlorocyanoanilate, bearing electron-donating and withdrawing substituents at the 3,6-positions of the benzoquinone core, are reported. 1Dy shows an octacoordinated {N6O2} DyIII ion within a D4h distorted square antiprismatic coordination, an ideal geometry for Single-Molecule Magnet (SMM) behavior, given its oblate nature, whereas in 2Dy the octacoordinated DyIII ion adopts a D2d triangular dodecahedron geometry, while maintaining the same {N6O2} coordination sphere. Both complexes show field-induced single molecule magnet (SMM) behaviour, with tuning of the slow magnetic relaxation as a function of the nature of the substituents at the 3,6-positions of the anilate moiety. A comparison of the Arrhenius fitting parameters for 1Dy and 2Dy supports the hypothesis that square antiprismatic DyIII complexes, as 1Dy, exhibit higher energy barriers. This interpretation is supported by ab initio calculations that also shed light on the crucial role of intermolecular dipolar interactions.
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 http://hdl.handle.net/2072/537606
https://doi.org/10.1039/D4DT00175C
url http://hdl.handle.net/2072/537606
https://doi.org/10.1039/D4DT00175C
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Fondazione di Sardegna, Convenzione Triennale tra la Fondazione di Sardegna e gli Atenei Sardi, Regione Sardegna, L.R. 7/2007 annualità 2020, through the SMAWRT project (CUP F75F21001260007)
MCIN/AEI/10.13039/501100011033/ through project PID2021-124796OB-I00
Generalitat de Catalunya (2021SGR1154)
Ministerio de Ciencia e Innovación through the Severo Ochoa Excellence Accreditations CEX2019-000925-S (MCIN/AEI) and CEX2021-001214-S
CERCA Programme/Generalitat de Catalunya
dc.rights.none.fl_str_mv CC-BY
info:eu-repo/semantics/openAccess
rights_invalid_str_mv CC-BY
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 25 p.
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 RECERCAT (Dipòsit de la Recerca de Catalunya)
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
_version_ 1869411838905548800
score 15,811543

Similares en LA Referencia