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柔軟で線形な鎖は,分子ターンスティルの分子内回転を阻害するバッフルとして作用する
Chengyuan Yu1, Lishuang Ma1, Jiaojiao He1
1Key Laboratory of Theoretical and Computational Photochemistry and Key Laboratory of Radiopharmaceuticals, Ministry of Education; College of Chemistry, Beijing Normal University , Beijing 100875, China.
Journal of the American Chemical Society
|December 15, 2016
まとめ
分子装置の柔軟な鎖は 分子運動を制御できます 分子ターニティルの長い置換剤はバッフルとして作用し,高速で回転を阻害するが,低速で回転を許し,新しい分子の機械機能を可能にします.
科学分野:
- 分子機械
- 超分子化学
- ナノテクノロジー
背景:
- 人工分子装置の柔軟な鎖は通常,分子運動に対する制限された制御を示す.
- 先進的な分子機械の設計には 分子部品のダイナミクスを理解することが重要です
研究 の 目的:
- 柔軟な置換剤を用いた分子ターニティルの動的性質を調査する.
- 分子装置内の柔軟な鎖におけるステリック阻害と運動速度との相関を確立する.
主な方法:
- 固いフレームとフェニル回転器を備えた分子ターニティルの合成
- 異なる長さの線形アルコキシメチル置換剤の組み込み
- 核磁共振 (NMR) スペクトロスコーピーを用いて,NMR時間スケールの動的性質の分析.
主要な成果:
- 柔軟な代替剤は,弾性バッフルとして作用し,中速から高速の回転器の動きを効果的に抑制します.
- ローテーションの速度が遅い場合,置換器はリラックスし,ターンスティルの空洞を完全に通過します.
- 柔軟な鎖のステリック阻害と運動速度との間には相関関係があることが判明した.
結論:
- 柔軟な線形鎖は 人工デバイスの分子運動を制御するために設計することができます.
- 置換物の動的行動は分子回転器の速度に依存する.
- この研究は,高度な動的制御と機能を備えた 分子機械の開発の基礎となる.
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