| Project/Area Number |
06640675
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Organic chemistry
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| Research Institution | Hokkaido University (1995)
Tohoku University (1994) |
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Principal Investigator |
SUZUKI Takanori Hokkaido University, Graduate School of Science, Associate Professor, 大学院理学研究科, 助教授 (70202132)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1995: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1994: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | Redox System ; / Molecular Device ; / Electrochromism ; / Photochromism ; / Dynamic Redox Behavior / 多段階レドックス / 分子構造変化 / 応答性 / 渡環結合 / 渡環相互作用 |
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| Research Abstract |
The research project is intended to construct the organic redox systems which exhibit the electrochemical response such as electrochromism. In order to realize such molecular systems a new way of molecular designing was adopted where (1) the charged species would be stabilized by formation of strong chromophores with large pi-conjugation but not by aromatization and (2) drastic structural changes should be occurred during the electron transfer. These conditions are quite different from what had been used to design the multi-stage redox systems for a long time. The "dynamic redox behavior"is the central concept in this work, thus the redox pairs were designed so as to undergo reversible C-C bond formation andcleavage upon electron transfer. Dibenzo-TTF derivatives inserted with a cycloalkane ring as well as their isomersof the tricyclic skeleton were studiedin detail as prototypes. Some molecules studies here were proven to be thereversible dynamic redox systems . In orderr to construct the electrochromic systems other molecules containing triarylmethane dye skeletons were designed. The reversible interconversion between hexaarylethane derivatives and bis (triarylmethane) dications was demonstrated .
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