Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units

We have prepared and structurally characterized a new member of the butterfly-like {CoIII2DyIII2} single-molecule magnets (SMMs) through further CoIIIdecoration, with the formula [CoIII4DyIII2(OH)2(teaH)2(tea)2(Piv)6] (teaH3=triethanolamine; Piv=trimethylacetate or pivalate). Direct current (DC) sus...

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Autores principales:	Funes, Victor Alejandro, Albores, Pablo
Publicado:	2016
Materias:	coordination complex dysprosium lanthanides magnetic properties single-molecule magnets Beryllium compounds Cobalt Coordination reactions Dysprosium Electric impedance measurement Magnetic properties Magnetization Magnets Molecules Rare earth elements Alternating current Coordination complex Crystal field parameter Electrostatic modeling Magnetization measurements Magnetization relaxation Single-molecule magnet Susceptibility measurements Cobalt compounds
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09476539_v22_n40_p14308_Funes http://hdl.handle.net/20.500.12110/paper_09476539_v22_n40_p14308_Funes
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09476539_v22_n40_p14308_Funes
record_format	dspace
spelling	paper:paper_09476539_v22_n40_p14308_Funes2023-06-08T15:53:59Z Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units Funes, Victor Alejandro Albores, Pablo coordination complex dysprosium lanthanides magnetic properties single-molecule magnets Beryllium compounds Cobalt Coordination reactions Dysprosium Electric impedance measurement Magnetic properties Magnetization Magnets Molecules Rare earth elements Alternating current Coordination complex Crystal field parameter Electrostatic modeling Magnetization measurements Magnetization relaxation Single-molecule magnet Susceptibility measurements Cobalt compounds We have prepared and structurally characterized a new member of the butterfly-like {CoIII2DyIII2} single-molecule magnets (SMMs) through further CoIIIdecoration, with the formula [CoIII4DyIII2(OH)2(teaH)2(tea)2(Piv)6] (teaH3=triethanolamine; Piv=trimethylacetate or pivalate). Direct current (DC) susceptibility and magnetization measurements were performed allowing the extraction of possible crystal-field parameters. A simple electrostatic modeling shows reasonable agreement with experimental data. Alternating current (AC) susceptibility measurements under a zero DC field and under small applied fields were performed at different frequencies (i.e., 10–1500 Hz) and at low temperatures (i.e., 2–10 K). Multiple magnetization relaxation pathways are observed. Comparison with previously reported {CoIII2DyIII2} complex measurements allows an overall discussion about the origin of the dynamic behavior and its relationship with crystal-field split ground multiplet sublevels. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Fil:Funes, A.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alborés, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09476539_v22_n40_p14308_Funes http://hdl.handle.net/20.500.12110/paper_09476539_v22_n40_p14308_Funes
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	coordination complex dysprosium lanthanides magnetic properties single-molecule magnets Beryllium compounds Cobalt Coordination reactions Dysprosium Electric impedance measurement Magnetic properties Magnetization Magnets Molecules Rare earth elements Alternating current Coordination complex Crystal field parameter Electrostatic modeling Magnetization measurements Magnetization relaxation Single-molecule magnet Susceptibility measurements Cobalt compounds
spellingShingle	coordination complex dysprosium lanthanides magnetic properties single-molecule magnets Beryllium compounds Cobalt Coordination reactions Dysprosium Electric impedance measurement Magnetic properties Magnetization Magnets Molecules Rare earth elements Alternating current Coordination complex Crystal field parameter Electrostatic modeling Magnetization measurements Magnetization relaxation Single-molecule magnet Susceptibility measurements Cobalt compounds Funes, Victor Alejandro Albores, Pablo Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units
topic_facet	coordination complex dysprosium lanthanides magnetic properties single-molecule magnets Beryllium compounds Cobalt Coordination reactions Dysprosium Electric impedance measurement Magnetic properties Magnetization Magnets Molecules Rare earth elements Alternating current Coordination complex Crystal field parameter Electrostatic modeling Magnetization measurements Magnetization relaxation Single-molecule magnet Susceptibility measurements Cobalt compounds
description	We have prepared and structurally characterized a new member of the butterfly-like {CoIII2DyIII2} single-molecule magnets (SMMs) through further CoIIIdecoration, with the formula [CoIII4DyIII2(OH)2(teaH)2(tea)2(Piv)6] (teaH3=triethanolamine; Piv=trimethylacetate or pivalate). Direct current (DC) susceptibility and magnetization measurements were performed allowing the extraction of possible crystal-field parameters. A simple electrostatic modeling shows reasonable agreement with experimental data. Alternating current (AC) susceptibility measurements under a zero DC field and under small applied fields were performed at different frequencies (i.e., 10–1500 Hz) and at low temperatures (i.e., 2–10 K). Multiple magnetization relaxation pathways are observed. Comparison with previously reported {CoIII2DyIII2} complex measurements allows an overall discussion about the origin of the dynamic behavior and its relationship with crystal-field split ground multiplet sublevels. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
author	Funes, Victor Alejandro Albores, Pablo
author_facet	Funes, Victor Alejandro Albores, Pablo
author_sort	Funes, Victor Alejandro
title	Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units
title_short	Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units
title_full	Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units
title_fullStr	Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units
title_full_unstemmed	Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units
title_sort	exploring the slow relaxation of the magnetization in coiii-decorated {dyiii2} units
publishDate	2016
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09476539_v22_n40_p14308_Funes http://hdl.handle.net/20.500.12110/paper_09476539_v22_n40_p14308_Funes
work_keys_str_mv	AT funesvictoralejandro exploringtheslowrelaxationofthemagnetizationincoiiidecorateddyiii2units AT alborespablo exploringtheslowrelaxationofthemagnetizationincoiiidecorateddyiii2units
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Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units

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