Please use this identifier to cite or link to this item: https://doi.org/10.1002/anie.201407799
Title: A Heterometallic Fe-II-Dy-III Single-Molecule Magnet with a Record Anisotropy Barrier
Authors: Liu, Jun-Liang
Wu, Jie-Yi
Chen, Yan-Cong
Mereacre, Valeriu
Powell, Annie K
Ungur, Liviu 
Chibotaru, Liviu F
Chen, Xiao-Ming
Tong, Ming-Liang
Keywords: Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
ab initio calculations
anisotropy barriers
ferromagnetic interactions
magnetic properties
Mossbauer spectroscopy
single-molecule magnet
HIGH-SPIN IRON(II)
PARAMAGNETIC RELAXATION
ZERO-FIELD
COMPLEXES
SYMMETRY
ION
EXCHANGE
MAGNETIZATION
CLUSTERS
BLOCKING
Issue Date: 17-Nov-2014
Publisher: WILEY-V C H VERLAG GMBH
Citation: Liu, Jun-Liang, Wu, Jie-Yi, Chen, Yan-Cong, Mereacre, Valeriu, Powell, Annie K, Ungur, Liviu, Chibotaru, Liviu F, Chen, Xiao-Ming, Tong, Ming-Liang (2014-11-17). A Heterometallic Fe-II-Dy-III Single-Molecule Magnet with a Record Anisotropy Barrier. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 53 (47) : 12966-12970. ScholarBank@NUS Repository. https://doi.org/10.1002/anie.201407799
Abstract: A record anisotropy barrier (319 cm-1) for all d-f complexes was observed for a unique FeII-DyIII-FeII single-molecule magnet (SMM), which possesses two asymmetric and distorted FeII ions and one quasi-D5h DyIII ion. The frozen magnetization of the DyIII ion leads to the decreased FeII relaxation rates evident in the Mössbauer spectrum. Ab initio calculations suggest that tunneling is interrupted effectively thanks to the exchange doublets. A record anisotropy barrier of 319 cm-1 was observed for a FeII-DyIII-FeII single-molecule magnet, which possesses two asymmetric and distorted FeII ions and one quasi-D5h DyIII ion. The frozen magnetization of the DyIII ions leads to the slowed relaxation of the FeII ions in the Mössbauer spectrum. Ab initio calculations suggest that tunneling is interrupted effectively thanks to the exchange doublets.
Source Title: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
URI: https://scholarbank.nus.edu.sg/handle/10635/228716
ISSN: 1433-7851
1521-3773
DOI: 10.1002/anie.201407799
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