| Project/Area Number |
18550165
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials/Devices
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| Research Institution | Shimane University |
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Principal Investigator |
YAMAGUCHI Isao Shimane University, Department of Material Science, Associate Professor (00272708)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥4,150,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥450,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2006: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | π-conjugated guest molecule / cyclodextrin / donor / acceptor / π-conjugated adduct / expansion of π-conjugation system |
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| Research Abstract |
AD-π -A (D = donor and A = acceptor)type n-conjugated guest molecule (1) was synthesized by reaction of p-phenylenedimiane, 2-flufural, and 2-pyridinecaroxaldehyde in a 2:1:1 molar ratio. A π-conjugated adduct (2) was obtained from a mixture of an N,N-dimethylformamide solution of 1 with an aqueous solution of γ-cyclodextrin (γ-CD) as a precipitate. Powder X-ray diffraction, solid state ^<13>C NMR, and differential scanning calorimetry analyses suggested that the guest molecules were included in the cavity of γ-CD. Observation of absorption of 2 at a longer wavelength than that of 1 suggested that the adduct 2 has an expanded z-conjugated system. Cyclic voltammetry analysis indicated that 2 received electrochemical oxidation. The D-A interaction between the guest molecules and geometrical fitness were essential for the formation of the expanded π-conjugated system. The adducts were electrochemically active in films.
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