Marriage of two supramolecular systems toward a novel artificial photosynthetic system
| Project/Area Number |
26790002
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nanostructural chemistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
Ishida Yohei 北海道大学, 工学研究院, 助教 (00726713)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 人工光合成 / エネルギー移動 / 電子移動 / 超速分光 / ポルフィリン / 無機ナノシート / 粘土 / 光化学 / ナノ材料 / 粘土鉱物 / 分子カプセル / 超分子化学 / 材料化学 |
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| Outline of Final Research Achievements |
To achieve the goal of energy transfer and subsequent electron transfer across three molecules, a phenomenon often utilized in artificial light harvesting systems, we have assembled a light absorber (that also serves as an energy donor), an energy acceptor (that also serves as an electron donor) and an electron acceptor on the surface of an anionic clay nanosheet. A positively charged water-soluble organic capsule was used to hold neutral light absorbers on the above surface. The excitation of 2-acetylanthracene in the three-component system resulted in energy transfer from 2-acetylanthracene to zinc porphyrin with 71% efficiency. Energy transfer was followed by electron transfer from the zinc porphyrin to the cationic bipyridinium derivative with 81% efficiency. Merging the concepts of supramolecular chemistry and surface chemistry we realized sequential energy and electron transfer between three hydrophobic molecules in water.
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Report
(4 results)
Research Products
(20 results)
