Please use this identifier to cite or link to this item:
https://doi.org/10.1002/chem.201501866
DC Field | Value | |
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dc.title | Tuning the Magnetic Interactions and Relaxation Dynamics of Dy-2 Single-Molecule Magnets | |
dc.contributor.author | Xue, Shufang | |
dc.contributor.author | Guo, Yun-Nan | |
dc.contributor.author | Ungur, Liviu | |
dc.contributor.author | Tang, Jinkui | |
dc.contributor.author | Chibotaru, Liviu F | |
dc.date.accessioned | 2022-07-17T12:26:21Z | |
dc.date.available | 2022-07-17T12:26:21Z | |
dc.date.issued | 2015-09-28 | |
dc.identifier.citation | Xue, Shufang, Guo, Yun-Nan, Ungur, Liviu, Tang, Jinkui, Chibotaru, Liviu F (2015-09-28). Tuning the Magnetic Interactions and Relaxation Dynamics of Dy-2 Single-Molecule Magnets. CHEMISTRY-A EUROPEAN JOURNAL 21 (40) : 14099-14106. ScholarBank@NUS Repository. https://doi.org/10.1002/chem.201501866 | |
dc.identifier.issn | 0947-6539 | |
dc.identifier.issn | 1521-3765 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/228723 | |
dc.description.abstract | Efficient modulation of single-molecule magnet (SMM) behavior was realized by deliberate structural modification of the Dy2 cores of [Dy2(a′povh)2(OAc)2(DMF)2] (1) and [Zn2Dy2(a′povh)2(OAc)6]•4 H2O (2; H2a′povh=N′-[amino(pyrimidin-2-yl)methylene]-o-vanilloyl hydrazine). Compound 1 having fourfold linkage between the two dysprosium ions shows high-performance SMM behavior with a thermal energy barrier of 322.1 K, whereas only slow relaxation is observed for compound 2 with only twofold connection between the dysprosium ions. This remarkable discrepancy is mainly because of strong axiality in 1 due to one pronounced covalent bond, as revealed by experimental and theoretical investigations. The significant antiferromagnetic interaction derived from bis(μ2-O) and two acetate bridging groups was found to be crucial in leading to a nonmagnetic ground state in 1, by suppressing zero-field quantum tunneling of magnetization. | |
dc.language.iso | en | |
dc.publisher | WILEY-V C H VERLAG GMBH | |
dc.source | Elements | |
dc.subject | Science & Technology | |
dc.subject | Physical Sciences | |
dc.subject | Chemistry, Multidisciplinary | |
dc.subject | Chemistry | |
dc.subject | dysprosium | |
dc.subject | ab initio calculations | |
dc.subject | magnetic properties | |
dc.subject | N,O ligands | |
dc.subject | single-molecule magnets | |
dc.subject | ION MAGNET | |
dc.subject | LANTHANIDE COMPLEXES | |
dc.subject | ANISOTROPY BARRIER | |
dc.subject | GROUND-STATE | |
dc.subject | BLOCKING | |
dc.subject | BEHAVIOR | |
dc.subject | TRIANGLES | |
dc.subject | SYMMETRY | |
dc.subject | EXCHANGE | |
dc.subject | SYSTEMS | |
dc.type | Article | |
dc.date.updated | 2022-07-15T02:35:23Z | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1002/chem.201501866 | |
dc.description.sourcetitle | CHEMISTRY-A EUROPEAN JOURNAL | |
dc.description.volume | 21 | |
dc.description.issue | 40 | |
dc.description.page | 14099-14106 | |
dc.published.state | Published | |
Appears in Collections: | Staff Publications Elements |
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Xue_CEJ_2015.cif.txt | Supporting information | 58.55 kB | Text | CLOSED | None | |
Xue_CEJ_2015.pdf | Published version | 1.22 MB | Adobe PDF | CLOSED | None | |
Xue_CEJ_2015_SI.pdf | Supporting information | 1.2 MB | Adobe PDF | CLOSED | None |
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