コヴァレンント・ポスト・アセンブリ・モディフィケーション・トリガー ボロメアン・リングの構造変形
Wen-Xi Gao1, Hui-Jun Feng1, Yue-Jian Lin1
1Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry , Fudan University , Shanghai 200433 , P. R. China.
Journal of the American Chemical Society
|May 24, 2019
まとめ
研究者は,リガンド交換とディエルス-アルダー反応を用いた新しい超分子変換カスケードを示しています. これらの反応は,トポロジカルな変化を誘発することによって,ボロメアン環 (BRs) の制御された結合,解き放つ,および改変を可能にします.
科学分野:
- 超分子化学
- 有機化学
- 材料科学
背景:
- ボローム環 (Borromean rings,BRs) は,独特のトポロジカルな性質を持つ複雑な相互接続された構造である.
- 超分子構造の組み立てと分解を制御することは 先進的な材料の開発に不可欠です
研究 の 目的:
- テンプレートフリーでテトラジンエッジのボロメアンリング (BR) の新しいファミリーを開発する.
- これらのBRの濃度依存の結合と解離メカニズムを調査する.
- 組立後の改変のための逆電子需要ダイエルス-アルダー (IEDDA) 反応を用いて,超分子構造変異を調査する.
主な方法:
- BR構造のためのリガンド交換反応.
- BRの濃度依存の結合と解離の観察
- トリガー変換のための逆電子需要ダイエルス-アルダー (IEDDA) 反応.
主要な成果:
- テンプレートフリーで,テトラジンエッジのBRを 合成した.
- BRの結合と解き放たれに対する濃度依存の制御が実証されている.
- IEDDA反応によるボロメアン前駆体の組み立て後の改変を達成した.
- IEDDA反応によるステリック変化によって誘発された解き放つを含む制御されたトポロジカル変換.
結論:
- 超分子変換カスケードは複雑なアーキテクチャの構築と操作のための多用途のプラットフォームを提供します.
- IEDDA反応は,ボロメアン環系におけるトポロジ的変化と組み立て後の修正を誘発する強力なツールである.
- 開発されたシステムは,外部の刺激を通して超分子トポロジーを正確に制御することができます.
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