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A Heterometallic FeII-DyIII Single-Molecule Magnet with a Record Anisotropy Barrier.
- Source :
- Angewandte Chemie International Edition; Nov2014, Vol. 53 Issue 47, p12966-12970, 5p
- Publication Year :
- 2014
-
Abstract
- A record anisotropy barrier (319 cm<superscript>−1</superscript>) for all d-f complexes was observed for a unique Fe<superscript>II</superscript>-Dy<superscript>III</superscript>-Fe<superscript>II</superscript> single-molecule magnet (SMM), which possesses two asymmetric and distorted Fe<superscript>II</superscript> ions and one quasi- D<subscript>5 h</subscript> Dy<superscript>III</superscript> ion. The frozen magnetization of the Dy<superscript>III</superscript> ion leads to the decreased Fe<superscript>II</superscript> relaxation rates evident in the Mössbauer spectrum. Ab initio calculations suggest that tunneling is interrupted effectively thanks to the exchange doublets. [ABSTRACT FROM AUTHOR]
- Subjects :
- MOLECULES
MAGNETS
IONS
MAGNETIZATION
MOSSBAUER spectroscopy
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 53
- Issue :
- 47
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 99368308
- Full Text :
- https://doi.org/10.1002/anie.201407799