| Project/Area Number |
18550174
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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 |
Organic industrial materials
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| Research Institution | Chiba University |
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Principal Investigator |
OGURA Katsuyuki Chiba University, Graduate School of Engineering, Professor (60114253)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUMOTO Shoji Chiba University, Graduate School of Engineering, Assistant Professor (50302534)
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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 |
¥4,060,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2006: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | Metallic Luster / Tricyanoethenyl Derivatives / Organic π-System / Thin Film / Electron-Conducting / 電気伝導性 |
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| Research Abstract |
This research aimed the development of various functional materials (for example color material) having tricyanoethenyl (TCE) group, which makes neutral organic π-electronic systems interact with each others intermolecularly. In 2007, we investigated the origin of the metallic luster induced by 1-aryl-2- (2-thienyl) -5- (5-tricyano-2-thienyl) pyrrole (1) crystals as well as the development of novel molecules having TCE groups that form thin film with metallic luster and, as a result, the following fruitful results were gained. 1) Theoretical Investigation of the origin of the metallic luster. The relationship between the arrangement of the π-electronic molecules (1) and the metallic luster were investigated by the use of plane-polarized light that was irradiated on each plane of the single crystal of 1, elucidating that successive arrangement of the π-molecules in such a manner that tricyanoethenyl group interacts with pyrrole π-system intermolecularly. This conclusion was also supported by the theoretical calculation with the ab initio molecular orbital method (B3LYP/6-31G(d)). 2) Development of Stable Metal-lustrous thin films by the Use of TCE Groups Last year, we found that the compounds having two or more N-[4- (tricyanoethenyl) pheny]anilino (TCPA) groups forms a thin film with metallic luster. Furthermore, we have been investigating what kind of compound having TCPA groups can give a stable thin film with gold-like luster. As a result, it was elucidated that methyl 3, 5-dimethylbenzoate having TCPA at the methyl groups and methyl benzoate having TCPA groups at the 3- and 5-positions form a stable thin film with metallic luster. Furthermore, the benzoate ester that has two TCPA groups at 3- and 5-positions was found to form a stable thin film with metallic luster.
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