[UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments

The first structurally characterized hexafluorido complex of a tetravalent actinide ion, the [UF6]2- anion, is reported in the (NEt4)2[UF6]2H2O salt (1). The weak magnetic response of 1 results from both U(IV) spin and orbital contributions, as established by combining X-ray magnetic circular dichr...

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Authors: Pedersen, Kasper S., Meihaus, Katie R., Rogalev, Andrei, Wilhelm, Fabrice, Aravena Ponce, Daniel Alejandro, Amoza Dávila, Martín, Ruiz Sabín, Eliseo, Long, Jeffrey R., Bendix, Jesper, Clérac, Rodolphe
Format: article
Status:Versión aceptada para publicación
Publication Date:2019
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/154807
Online Access:https://hdl.handle.net/2445/154807
Access Level:Open access
Keyword:Metalls de terres rares
Imants
Urani
Espectroscòpia de raigs X
Rare earth metals
Magnets
Uranium
X-ray spectroscopy
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spelling [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic momentsPedersen, Kasper S.Meihaus, Katie R.Rogalev, AndreiWilhelm, FabriceAravena Ponce, Daniel AlejandroAmoza Dávila, MartínRuiz Sabín, EliseoLong, Jeffrey R.Bendix, JesperClérac, RodolpheMetalls de terres raresImantsUraniEspectroscòpia de raigs XRare earth metalsMagnetsUraniumX-ray spectroscopyThe first structurally characterized hexafluorido complex of a tetravalent actinide ion, the [UF6]2- anion, is reported in the (NEt4)2[UF6]2H2O salt (1). The weak magnetic response of 1 results from both U(IV) spin and orbital contributions, as established by combining X-ray magnetic circular dichroism (XMCD) spectroscopy and bulk magnetization measurements. The spin and orbital moments are virtually identical in magnitude, but opposite in sign, resulting in an almost perfect cancellation, which is corroborated by ab initio calculations. This work constitutes the first experimental demonstration of a seemingly non-magnetic molecular actinide complex carrying sizable spin and orbital magnetic moments.Wiley-VCH2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/154807Articles publicats en revistes (Química Inorgànica i Orgànica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1002/anie.201905056Angewandte Chemie-International Edition, 2019, vol. 58, num. 44, p. 15650-15654https://doi.org/10.1002/anie.201905056(c) Wiley-VCH, 2019info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1548072026-05-27T06:46:51Z
dc.title.none.fl_str_mv [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
title [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
spellingShingle [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
Pedersen, Kasper S.
Metalls de terres rares
Imants
Urani
Espectroscòpia de raigs X
Rare earth metals
Magnets
Uranium
X-ray spectroscopy
title_short [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
title_full [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
title_fullStr [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
title_full_unstemmed [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
title_sort [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
dc.creator.none.fl_str_mv Pedersen, Kasper S.
Meihaus, Katie R.
Rogalev, Andrei
Wilhelm, Fabrice
Aravena Ponce, Daniel Alejandro
Amoza Dávila, Martín
Ruiz Sabín, Eliseo
Long, Jeffrey R.
Bendix, Jesper
Clérac, Rodolphe
author Pedersen, Kasper S.
author_facet Pedersen, Kasper S.
Meihaus, Katie R.
Rogalev, Andrei
Wilhelm, Fabrice
Aravena Ponce, Daniel Alejandro
Amoza Dávila, Martín
Ruiz Sabín, Eliseo
Long, Jeffrey R.
Bendix, Jesper
Clérac, Rodolphe
author_role author
author2 Meihaus, Katie R.
Rogalev, Andrei
Wilhelm, Fabrice
Aravena Ponce, Daniel Alejandro
Amoza Dávila, Martín
Ruiz Sabín, Eliseo
Long, Jeffrey R.
Bendix, Jesper
Clérac, Rodolphe
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Metalls de terres rares
Imants
Urani
Espectroscòpia de raigs X
Rare earth metals
Magnets
Uranium
X-ray spectroscopy
topic Metalls de terres rares
Imants
Urani
Espectroscòpia de raigs X
Rare earth metals
Magnets
Uranium
X-ray spectroscopy
description The first structurally characterized hexafluorido complex of a tetravalent actinide ion, the [UF6]2- anion, is reported in the (NEt4)2[UF6]2H2O salt (1). The weak magnetic response of 1 results from both U(IV) spin and orbital contributions, as established by combining X-ray magnetic circular dichroism (XMCD) spectroscopy and bulk magnetization measurements. The spin and orbital moments are virtually identical in magnitude, but opposite in sign, resulting in an almost perfect cancellation, which is corroborated by ab initio calculations. This work constitutes the first experimental demonstration of a seemingly non-magnetic molecular actinide complex carrying sizable spin and orbital magnetic moments.
publishDate 2019
dc.date.none.fl_str_mv 2019
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/2445/154807
url https://hdl.handle.net/2445/154807
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/10.1002/anie.201905056
Angewandte Chemie-International Edition, 2019, vol. 58, num. 44, p. 15650-15654
https://doi.org/10.1002/anie.201905056
dc.rights.none.fl_str_mv (c) Wiley-VCH, 2019
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Wiley-VCH, 2019
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley-VCH
publisher.none.fl_str_mv Wiley-VCH
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 15,301603

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