| Project/Area Number |
15K05481
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Functional solid state chemistry
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
Kodama Takeshi 首都大学東京, 理工学研究科, 准教授 (20285092)
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| Co-Investigator(Kenkyū-buntansha) |
古川 貢 新潟大学, 研究推進機構, 准教授 (90342633)
加藤 立久 京都大学, 国際高等教育院, 教授 (80175702)
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| Research Collaborator |
NAKATORI Natsumi
MITANI Takuji
KOBAYASHI Kazuhiro
NISHIMOTO Shinya
TAKAI Ryoya
YOSHIDA Shun
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 複核金属内包フラーレン / スピン状態 / 多周波数ＥＳＲ |
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| Outline of Final Research Achievements |
Isolation method of M2@C80, which is only stable in its anion form, was developed for Y2@C80 as a typical example. Gd2@Cn(n=78,80) anions were isolated and it was shown that their spin states were S=15/2 by ESR spectroscopy. In addition, GdM@C78(M=Sc, La) anions, in which M is a metal with no spin, were also isolated and it was clarified that their spin states were S=4 by ESR spectroscopy. As a result, it was confirmed that the interaction between a spin S=7/2 for Gd and a spin S=1/2 for an electron on the dimer MO is ferromagnetic. It was demonstrated that the spin state for Tm2@C78 anion is described by an effective spin S=1/2. Theoretical calculation for M2@Cn anion was also performed.
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