NMR spectroscopy with dynamic nuclear polarization using photo-excited triplet electron spins
| Project/Area Number |
15K13733
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Analytical chemistry
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
Tateishi Kenichiro 国立研究開発法人理化学研究所, 仁科加速器研究センター, 基礎科学特別研究員 (80709220)
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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: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Keywords | 核磁気共鳴 / 動的核偏極 / 時間分解ESR / 光励起三重項 / ペンタセン / 磁気共鳴 / トリプレットDNP / テトラセン |
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| Outline of Final Research Achievements |
We have demonstrated the 1H NMR signal enhancement of ~80. The sample, the mixture of ethanol-d6 and water doped with 6,13-diphenylpentacene, was polarized with Dynamic Nuclear Polarization using photo-excited triplet electron spins (Triplet-DNP). We also carried out time-resolved ESR measurement to explore new polarizing agent for Triplet-DNP. Intersystem crossing yield and lifetime of the triplet state of pentacene can be controlled by changing visible absorption and spin-orbit coupling strength.
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Report
(3 results)
Research Products
(8 results)
