ストレインプロモートされたサイクル添加によって達成された共性有機枠組の合成後の改変
Kelvin Li1, Naomi K Wong1, Michael J Strauss2
1Department of Chemistry and Chemical Biology, and the Brockhouse Institute for Materials Research, McMaster University, Hamilton, Ontario, Canada.
Journal of the American Chemical Society
|January 7, 2021
まとめ
合成後に二次元共性有機フレームワーク (2D COF) を修正する新しい方法を開発しました. この合成後の改造 (PSM) 戦略は,単一のCOFプラットフォームから多様な材料の作成を可能にします.
科学分野:
- 材料科学
- ポリマー化学
- ナノテクノロジー
背景:
- 二次元共性有機フレームワーク (2D COF) は,多用途の多孔性材料である.
- 合成後の改変 (PSM) は,事前形成されたCOFの機能化を可能にします.
- 既存のPSM方法は反応条件と機能群の互換性によって制限されることがあります.
研究 の 目的:
- クリック化学を用いた2D COFのための新しいPSM戦略を開発する.
- ストレスの促進されたアジド-アルキンサイクル添加 (SPAAC) に対応する非対称2DCOFの合成を実証する.
- COF網の装飾を様々な機能グループで紹介する.
主な方法:
- イミン結合2DCOFの合成
- ストレス促進アジド-アルキンサイクル添加 (SPAAC) をポスト合成機能化のために適用する.
- COFをアルキル鎖とアミンで温和な条件下で装飾する.
主要な成果:
- 合成された2DCOFは,触媒なしで容易にSPAAC反応を経験します.
- COFの網をアルキル鎖とアミンで定量的に装飾することができました.
- 機能化により,大量のCOFが溶液に安定したシートに自発的に分解された.
結論:
- この SPAAC ベースの PSM プラットフォームは,2D COF の簡単で効率的な機能化を可能にします.
- この方法は,繊細な化学機能を組み込むのに適しています.
- その結果,溶液に安定したシートは,COFの応用のための新しい可能性を提供します.
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