エステル結合結晶共性有機フレームワーク
Chenfei Zhao1, Hao Lyu1, Zhe Ji1
1Department of Chemistry, Kavli Energy Nanoscience Institute, and Berkeley Global Science Institute, University of California-Berkeley, Berkeley, California 94720, United States.
Journal of the American Chemical Society
|August 14, 2020
まとめ
研究者はエステル結合を用いて結晶性,多孔性共性有機フレームワーク (COF) を合成した. この画期的な発見は 網状化学を拡張し 毛穴のある用途に 新しい材料を提供しました
科学分野:
- 材料科学
- 有機化学
- クリスタルグラフィー
背景:
- 協和有機フレームワーク (COF) は,結晶性多孔ポリマーである.
- 既存のCOFはしばしばエステル以外の結合を用いる.
- 大規模で秩序ある構造をCOFで実現することは大きな課題です.
研究 の 目的:
- 新しいエステル結合結晶共性有機フレームワーク (COF) の合成と特徴づけ
- COFの合成のためのトランスエステル化反応の可能性を調査する.
- 網状化学の範囲をエステル結合COFに拡大する.
主な方法:
- ディトピク-2-ピリジニル芳香カルボキシラートとトライまたはテトラトピクフェノール間のトランスエステル化反応.
- エステル結合COFの結晶化
- X線微分と表面積解析を用いた構造的特徴付け
主要な成果:
- エステル結合の結晶性多孔性COF (COF-119からCOF-122まで) の成功合成
- COFは2092 m2/gまでの高表面積で kgmとhcbのトポロジーで得られた.
- COF-122は,金属-有機フレームワークに匹敵する,拡張された結晶のエッジを示した.
結論:
- この研究は,結晶エステル結合COFの最初の合成を示しています.
- この発見は,網状化学の原理の適用範囲を広げている.
- 開発されたCOFは構造的に一般的なポリエステルと関連しており,新しい材料設計の道を開いています.
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