調整ケージは,可変の穴のサイズを持つ調整ケージです
Sebastian Mirtschin1, Adam Slabon-Turski, Rosario Scopelliti
1Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.
Journal of the American Chemical Society
|September 24, 2010
まとめ
新しい六核調整ケージは大きく膨張し,大きな穴を作り出します. この膨張により,2つのコロネン分子が構造内にうまく封じ込めることができます.
科学分野:
- 超分子化学 超分子化学
- 協調化化学について
- マテリアルサイエンス 材料科学
背景:
- 調整ケージは,調節可能な性質を持つ超分子構造である.
- 穴の大きさを制御することは,分子封じ込めアプリケーションにとって非常に重要です.
研究 の 目的:
- 動的空洞を持つ六核調整ケージを開発する.
- ポリサイクル芳香炭化水素をカプセル化するケージの能力を調査する.
主な方法:
- 六核の金属有機構造体の合成.
- 構造の変化を研究するために,可変温度X線 difraktion.
- ガス吸附と脱吸収は,空洞の体積を決定するアイソテルムである.
- ゲスト分子のカプセル化を確認するための結晶学.
主要な成果:
- 六核調整ケージは,空洞の体積がほぼゼロから500 Å以上まで大きく変化している (3).
- このケージは,拡大した穴の中に2つのコロネン分子を成功裏に封じ込めました.
- 構造分析により,封装されたコロネン分子の存在と方向性が確認されました.
結論:
- 開発された調整ケージは,驚くべきダイナミックな穴の膨張を示しています.
- このダイナミックな振る舞いは,コロネンなどの大きなゲスト分子のサイズ選択的封じ込みを可能にします.
- この発見は,適応可能な超分子構造を用いたホスト・ゲスト化学と分子認識の新たな道を開く.
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