チオフェン,アセチレン,エチレンを構成する巨大なマクロサイクルは,ビルの構成要素としてチオフェン,アセチレン,エチレンで構成されています
Kazumi Nakao1, Masayuki Nishimura, Tomoya Tamachi
1Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan.
Journal of the American Chemical Society
|December 21, 2006
まとめ
広範なpi結合を持つ巨大なマクロサイクルオリゴチオフェンが合成され,特徴づけられました. これらの新しい材料は,ナノスケール"分子ワイヤ"の形成を含む,ユニークな光学,リドックス,および自己組み立ての性質を示しています.
科学分野:
- 有機化学 オーガニック・ケミストリー
- マテリアルサイエンス 材料科学
- 超分子化学 超分子化学
背景:
- オリゴチオフェンは,有機電子機器の重要な成分です.
- マクロサイクリック結合システムは,ユニークな電子的および構造的特性を提供します.
- 大規模なパイ結合システムの制御された合成は依然として課題です.
研究 の 目的:
- 異なるpi結合長 (60-180pi) の巨大なマクロサイクルオリゴチオフェンを設計・合成する.
- これらの新しいマクロサイクルの光学,電気化学,自己組み立ての性質を調査する.
- 半導体および宿主材料としての潜在能力を探求する.
主な方法:
- 修正されたソノガシラとマクマリー結合反応による合成.
- UV-Vis吸収,光スペクトロスコピー,電気化学,X線微分を用いた特徴付け.
- 顕微鏡技術 (SEM,AFM) を使用した自己組み立て行動の分析.
主要な成果:
- 巨大なマクロサイクル (1−5) と,大きな穴と分子直径を持つデリバティブ (1a−5a) の合成に成功しました.
- 赤色シフトの吸収,大きなストークスシフトの強い光,および可逆的な酸化還元反応を示した.
- 特定の誘導体の自己集積によってナノスケール"分子線"の形成 (2a,3a).
結論:
- 巨大マクロサイクリックオリゴチオフェンは,周期的結合によりユニークな電子および光物理的性質を有しています.
- これらの材料は,有機電子と超分子組立における応用の可能性を示しています.
- "分子線"を形成する能力は,自律的自己組織化の能力を強調しています.
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