| Project/Area Number |
23750022
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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 |
Physical chemistry
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| Research Institution | Niigata University (2012-2013)
Keio University (2011) |
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Principal Investigator |
MIURA Tomoaki 新潟大学, 自然科学系, 助教 (80582204)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 有機色素集合体 / 光誘起電子移動 / 水溶性アクセプター / 疎水性相互作用 / クーロン力 / 電子移動 / ドナー‐アクセプター会合体 / 水溶液 / ポルフィリン / スピンダイナミクス / 磁場効果 / 色素ナノ粒子 |
|---|
| Research Abstract |
Supramolecular complex between water soluble porphyirns (donor) and naphthalene diimides (NDI, acceptor) was studied for the elucidation of basic mechanisms involved in photo-functional organic molecular assemblies. Efficient complex formation with an association constant over 10 to the 5th power is observed for complexes between a cationic porphyrin and anionic NDIs in an aqueous solution. It has been concluded from structural and environmental effect on the complex formation that the main driving force is the hydrophobic interaction, which is strongly affected by the coulomb interaction. Spectroscopic studies indicate the fast forward and back electron transfer in the assembly, of which the time constants are shorter than a few picoseconds.
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