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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todo:paper_09476539_v22_n40_p14308_Funes2023-10-03T15:49:30Z Exploring the Slow Relaxation of the Magnetization in CoIII-Decorated {DyIII2} Units Funes, A.V. Carrella, L. Rentschler, E. Alborés, P. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, A.V. Carrella, L. Rentschler, E. Alborés, P. 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 |
| format |
JOUR |
| author |
Funes, A.V. Carrella, L. Rentschler, E. Alborés, P. |
| author_facet |
Funes, A.V. Carrella, L. Rentschler, E. Alborés, P. |
| author_sort |
Funes, A.V. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_09476539_v22_n40_p14308_Funes |
| work_keys_str_mv |
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| _version_ |
1807316146936872960 |