共同的有機構造の単結晶構造である
Yue-Biao Zhang1, Jie Su, Hiroyasu Furukawa
1Department of Chemistry, University of California , and Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States.
Journal of the American Chemical Society
|October 23, 2013
まとめ
研究者らは,高度な電子 difraktion を使用して,新しい共性有機フレームワーク (COF),COF-320の結晶構造を決定しました. この多孔性の高い材料は,メタンの吸収を大幅に示し,COFの化学を進めている.
科学分野:
- マテリアルサイエンス 材料科学
- 化学 化学は化学です.
- クリスタログラフィーです.
背景:
- 協和有機フレームワーク (COF) は,調節可能な構造を持つ結晶性多孔ポリマーである.
- COFの正確な原子配列を決定することは,その性質と応用を理解するために極めて重要です.
- 単結晶 difraktion 方法は,正確な構造の決定に理想的ですが,COF 材料では困難です.
研究 の 目的:
- 新しい共性有機構造の結晶構造を決定するために,COF-320.
- COF-320の多孔性とガス吸収特性を特徴づけるために.
- COF構造の解明のための単結晶3D電子 difraktionの有用性を実証する.
主な方法:
- COF-320の合成は,テトラ-(4-アニル) メタンと4,4'-ビフェニルダイアルデヒドのイミン濃縮による.
- 単一結晶3D電子 difraktionは,データ収集のための回転電子 difraktion (RED) メソッドを使用しています.
- 表面積とメタンの吸収能力を決定するためのガス吸収分析.
主要な成果:
- COF-320の結晶構造は成功裏に決定され,9倍に交わされたダイヤモンド網が明らかになりました.
- COF-320は永続的な多孔性を示し,ラングミューアの表面積は2400 m(2) / gの高い.
- COF-320は,25 °Cと80 barで15.0 wt % (176 cm(3) /cm(3)) の有意なメタンの吸収を示した.
結論:
- COF-320の構造は,単結晶回転電子微分法を使用して正確に決定されました.
- COF-320は,非常に多孔性の高い材料で,優れたメタンの貯蔵能力を持っています.
- この研究は,共性有機フレームワークの構造的特徴化と開発における重要な進歩を表しています.
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