| Project/Area Number |
20J20245
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 国内 |
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| Review Section |
Basic Section 34010:Inorganic/coordination chemistry-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KUMAR Kunal 東京大学, 理学系研究科, 特別研究員(DC1)
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| Project Period (FY) |
2020-04-24 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2022: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2021: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2020: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Gold-Gold Interaction / Raman Thermometer / Emission Thermometer / Pseudohalides / SHG / THz Absorption / Low Frequency Raman / SMM / Excimer and Exciplex / Lanthanide / octacyanide / SecondHarmonicGeneration / MOLCAS / ExchangeParameter |
|---|
| Outline of Research at the Start |
The novel idea is to synthesize bi-metallic (Ln(III) and d-transition metal) assemblies with organic ligands, which will have possibility to incorporate three different properties (Non linear optical, emission and magnetic properties) originating from each center using thiocyanide as a bridge. In this way, by changing the organic ligand or d transition metal one can tune the coordination geometry of lanthanide ions to induce the improved magnetic and emission properties. Additionally, functionalization of the ligands can yield other effects like non linear activity.
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| Outline of Annual Research Achievements |
I prepared three molecular compounds with the composition [DyxIIIY1-xIII(phen)2(μ-OH)2(H2O)2].[AuI(SCN)2]2.phen (x = 0 (DyAu), 0.1 (Dy0.1Y0.9Au), 0.02 (Dy0.02Y0.98Au); phen = 1,10-phenanthroline) containing lanthanide(III) ions (Ln3+) and bis(thiocyanato)gold(I) ions and solvents. The presence of two Au(I) atoms at a close distance make these assemblies attractive, which contain excimer-based emission properties and Au-Au vibrational features in the low-frequency (LF) region. The themometric ability utilizing Stokes and anti-Stokes Raman shift was charecterized. We also showed that this can be applied to detect the phase-transition of an unknown material. We also designed emission thermometer utilizing the luminescence of Dy(III) and Au(I) ions and compared it with Raman thermometer.
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| Research Progress Status |
令和4年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和4年度が最終年度であるため、記入しない。
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