炭素の心臓を持つメタルホースト
Edwin C Constable1, Guoqi Zhang, Daniel Häussinger
1Department of Chemistry, University of Basel, Spitalstrasse 51, CH-4056 Basel, Switzerland. edwin.constable@unibas.ch
Journal of the American Chemical Society
|June 25, 2011
まとめ
ニッケル-硫黄分子ボールは,二塩ロメタンやC60.0などのゲストをカプセル化することができます. ボウル上の置換基は,ボウル上の置換基である.
科学分野:
- 超分子化学 超分子化学
- 協調化化学について
- 材料科学 材料科学とは
背景:
- ニッケル-硫黄のクラスターは,宿主-ゲストの化学反応のためのユニークな構造的モチーフを提供します.
- 分子ボウルは,選択的なゲストエンカプセル化のための定義された空洞を提供します.
研究 の 目的:
- Ni(3) S(3) 基の分子ボウルのゲストエンカプスレーション能力を調査する.
- ペンダント置換物がホスト・ゲストアーキテクチャの組み立てにどのように影響するかを決定する.
- 溶液中のこれらの複合体の動的振る舞いを探求する.
主な方法:
- 固体構造を決定するための単結晶X線 difraktion.
- 分子ボウル調製のためのワンポット合成.
- 溶液状態の特徴化と定位研究のための核磁気共振 (NMR) スペクトロスコーピー.
主要な成果:
- Ni(3) S(3) 基の分子ボウルは,二塩基メタンとC60のゲストを成功裏に捕獲しました.
- ペンダント置換剤 (ナフタレン-2-イルメチル,ベンジル,エチル) は,C60.0で1:1 (ボウル) または2:1 (カプセル) のホスト-ゲストアーキテクチャの形成を制御しました.
- トリメア複合体は,溶液中の二次元類似体 (CDCl3) と均衡状態に存在した.
- NMRタイトルは,1,2-ジクロロベンゼン-d4.4におけるナフタレン-2-メチル-置換宿主に対する1:1宿主-C60複合体を確認した.
結論:
- Ni(3) S(3) 分子ボウルの合成アクセシビリティと構造の多様性が実証されています.
- ホスト・ゲスト・コンプレクセーションは,周辺置換器を介して調節可能であり,アセンブリの制御を可能にします.
- 異なる集積状態の間の溶液状態の均衡が観察され,ダイナミックなホスト-ゲストの相互作用が強調されました.
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