3Dの協調ネットワーク内の大きな有機分子の結晶対結晶のゲスト交換です
Osamu Ohmori1, Masaki Kawano, Makoto Fujita
1Department of Applied Chemistry, School of Engineering, The University of Tokyo, Japan, and Genesis Research Institute, Inc., Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
Journal of the American Chemical Society
|December 17, 2004
まとめ
この研究は,3Dの調整ネットワークにおける単一結晶のゲスト交換を実証しています. トリフェニレンやアントラセンのような平面分子が交換され,ドナーと受容体の相互作用により色が大きく変化した.
科学分野:
- マテリアルサイエンス 材料科学
- クリスタログラフィーです.
- 超分子化学 超分子化学
背景:
- 3D協調ネットワークは,分子封じ込めのための多孔構造を提供します.
- 結晶のフレームワーク内のゲストの交換を制御することは,機能的な材料にとって非常に重要です.
研究 の 目的:
- 3D協調ネットワークにおける大型分子の単結晶対単結晶のゲスト交換を調査する.
- ゲストの参加と交流を統括する構造的および電子的な相互作用を分析する.
主な方法:
- 単一結晶X線 difraktionは,ゲスト交換前と後に結晶構造を分析するために使用されました.
- 結晶学的分析は,ゲストと宿主リンガンドの間のスタッキング相互作用を研究するために使用されました.
- ゲストの含有に関連した色の変化を観察するために,スペクトロスコピーの方法が使用されました.
主要な成果:
- 3D協調ネットワーク内のトリフェニレン,アントラゼン,ペリレンを含む大分子で,単結晶のゲスト交換が成功しました.
- 結晶学的分析により,平面のゲストと宿主リガンドの間の効率的なpi-piスタッキング相互作用が明らかになりました.
- 平面客の包摂複合体は,強いドナー-受容体相互作用を示し,劇的な色変化を示した.
結論:
- 3Dコーディネーションネットワークは,平らな芳香分子のための可逆単結晶のゲスト交換を容易にする.
- 電子欠乏リガンドと電子豊富なゲストの間のドナー-受容体相互作用は,観測された色の変化と複雑な安定性の鍵です.
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