2021 Fiscal Year Final Research Report
Creation of Intramolecular Singlet Fission System Generating High-energy Multiexciton
| Project/Area Number |
20K15264
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 33010:Structural organic chemistry and physical organic chemistry-related
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | 一重項分裂 / 多重励起子 / 光エネルギー変換 / 電子スピン共鳴 / 五重項 / 三重項 |
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| Outline of Final Research Achievements |
In this study, we explored linking units and novel π-conjugated skeletons for creation of high-energy singlet fission molecules. First, we investigated synthesis of dyad of tetracene skeleton, which a known singlet fission molecule, linked by nonconjugated linkers, carbon and silicon atoms. Also, consideration ofΔE(ST), which depends on the overlap of HOMO and LUMO, we also focused on novel planarly-fixed fused-dienes. We synthesized a diaryldihydropentalenedione derivatives as potential singlet fission materials, that can undergo exothermic singlet fission.
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| Free Research Field |
有機光化学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では，既知の一重項分裂分子を非共役リンカーで連結したダイアドの合成の検討と，新規の一重項分裂分子の合成を行った．その結果，より高い三重項準位を有し，発熱的にSFを進行しうる分子を見出すことができ，将来的には光触媒や太陽光発電の高効率化につながる知見が得られた．
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