2013 Fiscal Year Final Research Report
Progressive improvement and systematic comprehension of single-molecule magnets on rare-earth and transition-metal heterometallic complexes
| Project/Area Number |
23750056
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Inorganic chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 分子磁性 / 分子性固体 / 単分子磁石 / 低温物性 / 交換相互作用 / 金属錯体 / 希土類 / 4f-3d系 |
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| Research Abstract |
We developed novel rare-earth and transition-metal heterometallic complexes, which show single-molecule magnet behavior, and elucidated their magnetic couplings.
As for trinuclear complexes [DyMDy] (M = Pd, Cu, Ni), single-molecule magnet performance was enhanced with increasing the spin quantum numbers of M ions. The [DyNiDy]-type complex with the methylimidazole ligands at the axial positions showed high performance compared to the complex having the pyridine ligands, which is due to a difference of coordination geometries around the Dy ions.
In addition, we demonstrated the chemical trends of magnetic coupling between rare-earth and transition-metal spins for [LnCu], [LnV], [CuLnCu], [Ln4Cu], and [Ln2Cu2]n.
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[Journal Article] Chemical Trend of 4f?3d Exchange Couplings in Heteremetallic Complexes with Ln = Gd, Tb, Dy, Ho, Er and M = Cu, V2011
Author(s)
R. Watanabe, K. Fujiwara, A. Okazawa, G. Tanaka, S. Yoshii, H. Nojiri, T. Ishida
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Journal Title
Chem. Commun
Volume: 47
Pages: 2110-2112
DOI
Peer Reviewed
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