柱[6]アレンベースの光反応性宿主-ゲスト複合化
Guocan Yu1, Chengyou Han, Zibin Zhang
1Department of Chemistry, Zhejiang University, Hangzhou, People's Republic of China.
Journal of the American Chemical Society
|May 1, 2012
まとめ
フォトレスポンシブピラー[6]アレーンは,トランスアゾベンゼンゲストとホスト・ゲスト複合体を形成し,光制御による集約を可能にします. この超分子システムは,分子認識のための新しい写真交換モチーフを提供します.
科学分野:
- 超分子化学 超分子化学
- マテリアルサイエンス 材料科学
- フォトケミストリー フォトケミストリー
背景:
- アゾベンゼン誘導体は,光反応性アプリケーションのホスト・ゲスト化学で広く使用されています.
- マクロサイクルのホストであるピラーアレナは,空洞の寸法に基づいて,サイズ選択的なゲストの結合を示します.
- サイクロデクストリン/アゾベンゼンなどの既存の宿主-ゲストシステムは確立されていますが,限界があります.
研究 の 目的:
- アゾベンゼン誘導体の宿主-ゲスト複合性を柱[6]arenes.で調査する.
- ピララレン-アゾベンゼン複合体の光反応性を調査する.
- 有機溶剤における分子認識のための新しい写真交換可能な超分子システムを開発する.
主な方法:
- ピラール[6]アレンとピラール[5]アレンホストの合成と特徴付け.
- アゾベンゼンを含むゲストを用いた宿主-ゲスト複合性の研究.
- 紫外線と可視光照射を用いた写真制御集積研究.
主要な成果:
- ピラールアレン[6]は,ピラールアレン[5]とは異なり,穴の大きさの違いにより,アゾベンゼンのトランス同位体と選択的に宿主-ゲスト複合体を形成する.
- 柱[6]アレンとアゾベンゼン間の宿主-ゲスト複合は,可逆的な光誘発集約を経験する.
- 紫外線と可視光による照射は,不規則な構造と膀のような構造の間の集積状態を切り替えます.
結論:
- Pillar[6]areneは,アゾベンゼンゲストの光反応性宿主として機能し,サイズ選択的認識を示しています.
- 開発されたシステムは,可逆的な光制御集積を示し,新しい写真の切り替え可能なモチーフを提供しています.
- このピララーレンベースのシステムは,有機溶剤に有効であり,既存の認識モチーフを補完します.
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