2017 Fiscal Year Final Research Report
Photoinduced Charge-Separated System Containing Metalloporphyrin Complex and Its Application
| Project/Area Number |
15K05451
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Aichi University of Education |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
高木 秀夫 名古屋大学, 物質科学国際研究センター, 准教授 (70242807)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 金属錯体化学 / 人工光合成 |
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| Outline of Final Research Achievements |
New dyad systems based on a zinc(II) porphyrin complex and a 2,2’-bipyridine moiety linked by amide bridges having various bridging groups were synthesized, and the photochemical behavior was investigated using fluorescence spectroscopy and a time-resolved absorption technique. The singlet excited state of the porphyrin complex was partially quenched by Cu2+ in methanol, and a photoinduced electron transfer from the excited state of the porphyrin moiety to the Cu(II)-bipyridine moiety was observed. The relatively long lifetime of the charge-separated state was ascribed to the slow electron-transfer reaction of the Cu(II)/Cu(I) couple bound to the bipyridine moiety. The lifetime of the charge-separated state of dyads becomes longer with the increase of the distance between the porphyrin and bipyridine moieties, and these findings are discussed using an empirical formula for the relationship between the reactivity and molecular structure of dyads.
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| Free Research Field |
無機化学
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