Development of Multiradical Ligands and Multinuclear High-Spin Complexes toward Room-Temperature Molecular Magnets
| Project/Area Number |
15K17841
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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 |
Functional solid state chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OKAZAWA Atsushi 東京大学, 大学院総合文化研究科, 助教 (30568275)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 分子性磁性体 / 金属錯体 / 有機ラジカル / 交換相互作用 / 希土類イオン / 構造磁性相関 / マルチラジカルキレート / 分子性固体 / 磁性 / 分子磁石 / 遷移金属錯体 / 強磁性的相互作用 / 結晶構造解析 |
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| Outline of Final Research Achievements |
Toward achieving room-temperature molecular magnets, we developed a novel multiradical and multichelating ligand, which has a chelating ability on multiple radical functional groups, and its polynuclear complexes.
(1) One-dimensional metal complexes were successfully obtained by complexing the radical ligand with copper(II) chloride and bromide. The complexes showed extremely strong metal-radical magnetic couplings (~1000 K) beyond a thermal energy of room temperature, which were clarified by means of magnetic measurements and quantum chemical calculations.
(2) Dinuclear lanthanide(III)-radical complexes were synthesized, where we demonstrated a coordination ability to lanthanide ions on the two radical moieties in the multiradical lingad.
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Report
(3 results)
Research Products
(35 results)
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[Journal Article] Small-Angle X-Ray Scattering Study on PVA/Fe3O4 Magnetic Hydrogels2016
Author(s)
Sunaryono, Ahmad Taufiq, Edy Giri Rahman Putra, Atsushi Okazawa, Isao Watanabe, Norimichi Kojima, Supagorn Rugmai, Siriwat Soontaranon, Mohammad Zainuri, Triwikantoro, Suminar Pratapa, Darminto
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Journal Title
NANO
Volume: 11
Issue: 03
Pages: 1650027-1650027
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Synthesis and Magnetic Properties of Linear Two-Coordinate Monomeric Diaryliron(II) Complexes Bearing Fused-Ring Bulky “Rind” Groups2016
Author(s)
Shun Goda, Masanori Nikai, Mikinao Ito, Daisuke Hashizume, Kohei Tamao, Atsushi Okazawa, Norimichi Kojima, Hiroyuki Fueno, Kazuyoshi Tanaka, Yoshio Kobayashi, and Tsukasa Matsuo
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Journal Title
Bulletin of the Chemical Society of Japan
Volume: 印刷中
Issue: 6
Pages: 636-638
DOI
NAID
Related Report
Peer Reviewed / Open Access
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