Zn4基の多孔結晶におけるホモキラリティと水熱安定性を可能にする
Xiang Zhao1,2, Huajun Yang1, Edward T Nguyen1
1Department of Chemistry and Biochemistry , California State University , Long Beach , California 90840 , United States.
Journal of the American Chemical Society
|October 24, 2018
まとめ
CPM-300とCPM-301という2つの新しい多孔性材料は 独特の構造と高い安定性を表しています チラルリガンドの小さなメチル群は亜鉛クラスタを保護し,厳しい条件での応用を可能にします.
科学分野:
- 材料科学
- 化学について
- ナノテクノロジー
背景:
- [Zn4O]6+クラスタは,典型的には二酸化炭素リガンドでMOF-5トポロジーを形成する.
- メタル・オーガニック・フレームワーク (MOF) のトポロジーと安定性を制御することは,そのアプリケーションにとって極めて重要です.
研究 の 目的:
- 新しい材料における[Zn4O]6+クラスターのトポロジカルおよび化学的振る舞いを調査する.
- 新しいホモキラルで,水熱的に安定した多孔性材料を開発する.
主な方法:
- 2つの新しい材料,CPM-300とCPM-301の合成,キラル二酸化炭素リガンドを使用する.
- 材料の構造的特徴
- 水熱と熱の安定性の評価
主要な成果:
- CPM-300は,MIL-88/MOF-235型フレームワークを形成する[Zn4O]6+クラスタを特徴としています.
- CPM-301は,交替する[Zn4O]6+と[Zn9(btz) 126+のクラスターを持つMOF-5トポロジーを示している.
- 両材料はホモキラルで,沸騰する水とアルコールで水熱的に安定し,440 °C以上では熱的に安定しています.
結論:
- キラルリガンドの小さなメチルグループは,高温での水分解から[Zn4O]6+クラスタを効果的に保護する.
- これらの発見は 頑丈でホモキラルな多孔質の材料を 作り出すための有望な基盤を示しています
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