Synthesis and photophysical properties of new supramolecular nanoassemblies constructed by donor and acceptor columns for light energy conversion
| Project/Area Number |
25886012
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanomaterials chemistry
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| Research Institution | Keio University |
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Principal Investigator |
SAKAI Hayato 慶應義塾大学, 理工学部, 助教 (60708486)
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| Project Period (FY) |
2013-08-30 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 超分子集合体 / ポルフィリン / 多環芳香族イミド体 / 水素結合 / 光誘起電子移動 / 電子物性 / 励起ダイナミクス / コロネンイミド / 電気化学特性 / 光物性 / 置換基効果 |
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| Outline of Final Research Achievements |
A series of benzo[ghi]perylene and coronene derivatives substituted by electron-
withdrawing groups were systematically synthesized considering number of imide groups and the peripheral positions. The photophysical and electrochemical properties of these compounds were investigated by steady-state spectroscopy, cyclic voltammetry. The synthetic introduction of proper substituents on the poly aromatic hydrocarbon therefore enables us to control the electrochemical and photophysical behaviors. The steady-state absorption spectra become red-shifted as compared to unsubstituted benzo[ghi]perylene. Regarding the electrochemistry, with an increase in the number of imide groups, the reduction potentials are shifted to the positive direction. Next, the supramolecular complex between zinc porphyrin and benzo[ghi]perylenetriimide derivatives through hydrogen bond was confirmed by 1H NMR. Finally, femtosecond transient absorption measurements indicated that efficient phoinduced electron transfer.
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Report
(3 results)
Research Products
(7 results)
