| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Several lanthanide complexes show slow magnetic relaxation phenomena under appropriate conditions and they are known as single-molecule magnets. For such complexes, we have examined to synthesize new complexes on the basis of the new molecular design, and to investigate the dynamic magnetic properties employing new instrument for angle-resolved ac susceptibility measurements. We synthesized mixed metal tri-nuclear complexes with the combination of lanthanide and diamagnetic divalent metal ions such as Zn(II) and Mg(II), and also the mono-lanthanide complexes. We found that the strong axial-crystal field enhances the slow magnetic relaxation phenomena, however, we also found that several axial symmetry around magnetic principal axis, which was parallel to molecular axis, accelerates the relaxation due to slight mixing of the ground doublet states.
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