| Project/Area Number |
16205028
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Polymer/Textile materials
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| Research Institution | KYUSHU UNIVERCITY |
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Principal Investigator |
KIMIUZKA Nobuo Kyushu University, Faculty of Engineering, Professor, 大学院工学研究院, 教授 (90186304)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUURA Kazunori Kyushu University, Faculty of Engineering, Associate Professor, 大学院工学研究院, 助教授 (60283389)
MORIKAWA Masa-aki Kyushu University, Faculty of Engineering, Research Associate, 大学院工学研究院, 助手 (10363384)
KUROIWA Keita Kyushu University, Faculty of Engineering, Research Associate, 大学院工学研究院, 助手 (70336006)
ANDO Reiko Kyushu-University, Faculty of Engineering, Research Assistant, 大学院工学府, 技術職員 (60380599)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥49,270,000 (Direct Cost: ¥37,900,000、Indirect Cost: ¥11,370,000)
Fiscal Year 2006: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2005: ¥30,420,000 (Direct Cost: ¥23,400,000、Indirect Cost: ¥7,020,000)
Fiscal Year 2004: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
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| Keywords | nano-metal complex / solvatochromism / nano wire / self-assembly / Platinum complex / lipid / thermochromism / mixed-valence / 光異性化 / 分子ワイヤー / 一次元錯体 / トリアゾール / MMX型混合原子価錯体 / 自己組織性ナノワイヤー / 双安定性 / 一次元電子状態 / 金属ナノ粒子 / ナノ粒子細線 |
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| Research Abstract |
Lipid-packaged, mixed-valence linear platinum complexes are dispersed in chloroform, chlorocyclohexane and in methylcyclohexane. They show indigo-colors, which are identical to solid samples. These lipid-complexes display Supramolecular thermochromism, resulting from heat-induced dissociation and recovery of coordination chains.
Unexpectedly, reassembled samples show altered CT absorption spectra. In chloroform, the reassembled complex gives indigo-color, while the chlorocyclohexane and methylcyclohexane dispersions show blue and red-colors, respectively. These color changes indicate enhanced solvation of lipid-packaged platinum complexes after the heat treatment. The thermal re-assembly also affects the aggregate morphology, and leads to the formation of nanowires, nanofibers and nanoparticles depending on the solvents employed. The conversion of pseudo one-dimensional inorganic complexes to lipophilic supramolecular assemblies thus gives solvatochromic properties, which are elements not existing in the conventional solid-state inorganic chemistry.
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