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非対称な銅 [2]-カテネートにおける電気化学および光化学的に駆動されたリング運動
Aude Livoreil1, Jean-Pierre Sauvage1, Nicola Armaroli1
1Contribution from the Laboratoire de Chimie Organo-Minérale, URA 422 du CNRS, Institut Le Bel, Université Louis Pasteur, 4 rue Blaise Pascal, 67070 Strasbourg, France, Dipartimento di Chimica "G. Ciamician", Università di Bologna, Via Selmi 2, 40126 Bologna, Italy, and Istituto FRAE/CNR, Via Gobetti 101, 40129 Bologna, Italy.
Journal of the American Chemical Society
|October 8, 2016
まとめ
研究者らは,2つの異なる相互接続のリングを持つ新しい非対称 [2] - カテネートを銅 ((I) テンプレートを使用して作成した. この分子機械は 調整状態の間で 切り替え可能な性質と制御された動きを示し 超分子化学の新たな可能性を提示しています
科学分野:
- 超分子化学
- 協調化学
- 材料科学
背景:
- 銅の3次元模板効果は,複雑な相互接続リングシステムを合成するのに役立ちます.
- 異なる相互結合した成分を持つ分子を設計することは 超分子化学における重要な課題です
- 外部刺激によって 分子運動と形状を制御することは 先進的な 分子機械の開発に不可欠です
研究 の 目的:
- 2,9-ディフェニル-1,10-フェナントロリン (dpp) と2,2',6',2''-テルピリジン (terpy) 単位を含む新しい非対称 [2]-カタネートを合成する.
- 銅 (I) と銅 (II) イオンとの二重調整モードを調査する.
- 異なる調整状態の間の誘発された分子運動と形状の変化を探求する.
主な方法:
- 銅 ((I) テンプレート効果を用いた非対称 [2]-ケテナートの合成.
- 銅 (I) と銅 (II) のイオンと複合し,異なる調整複合体を形成する.
- 電気化学研究と紫外線スペクトロスコーピーは 酸化還元作用と分子運動を分析します
- 分子再配置の速度に対する対陽子効果の調査.
主要な成果:
- 2つの異なる相互接続リングからなる新しい非対称 [2] - 鎖酸が成功して合成されました.
- 2つの異なる調整モードが観察されました:銅 ((I) はdpp単位に調整し,terpyを自由にして,銅 ((II) はdppを周辺に調整します.
- 銅の酸化状態が変化し,異なる分子形状と特性が生じました.
- リングの動きの速度は制御され,特定の条件下でゆっくりと再配置され,クロライドのようなカウンテリオンを調整することで急速な再配置が誘発される.
結論:
- 合成された非対称 [2]-カテネートは,銅の酸化状態に基づいて切り替え可能な性質を持つ分子機械として機能する.
- この研究は,複雑な超分子システムにおける 分子運動と形状変換の正確な制御を示しています.
- この研究は 反応性のある材料や 進歩した分子装置を 設計する道を開きます
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