柔軟な構成要素を備えた結晶の3次元共性有機構造体
Xiaoling Liu1, Jian Li2,3, Bo Gui1
1Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
Journal of the American Chemical Society
|January 22, 2021
まとめ
研究者は,蒸気曝露時に可逆的な呼吸運動を示す新しい柔軟な3次元共性有機フレームワーク (3D COF) を開発しました. この突破により 柔軟な多孔性の結晶が作られ スマート材料にも応用できます
科学分野:
- 材料科学
- クリスタルグラフィー
- 超分子化学
背景:
- 三次元共性有機フレームワーク (3D COF) の合成は困難であり,通常は硬い構成要素に依存する.
- 3D COFの設計に柔軟な構成要素を使用すると,合成と構造の決定に重大な障害が生じます.
研究 の 目的:
- 柔軟なビルディングブロックから構築された3D COFの合成と構造的特徴を調べる.
- これらの新しい柔軟な3D COFの特性と潜在的なアプリケーションを調査する.
主な方法:
- 柔軟なC-O単一結合を組み込んだ新しい3D COF (FCOF-5) を設計し合成した.
- 17個の連続回転電子 difraktion データセットを使用して結晶構造を決定し, 6 倍の相互浸透した pts トポロジを明らかにした.
- FCOF-5を組み込んだスマートソフトポリマー複合フィルムを製造した.
主要な成果:
- 柔軟なビルディングブロックから高結晶の3D COF,FCOF-5を合成しました
- 高度な結晶分析により,FCOF-5の6倍相互浸透したptsトポロジーを確認した.
- FCOF-5およびそのポリマー複合体における,蒸気による可逆的な膨張/収縮 (呼吸運動) が実証されている.
結論:
- 柔軟な構成要素は,ユニークな特性を持つ3D COFを成功裏に構築できます.
- FCOF-5は有意な呼吸行動を示し,柔らかい多孔結晶の発達に道を開きます.
- 合成されたポリマー複合物は 蒸気誘発による形状変容を可逆的に示し 反応性のある材料の可能性を強調しています
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