三角形の金属結合ユニットの自己組み立て,構造変形,およびゲスト結合特性
Li-Juan Wang1, Xin Li1, Sha Bai1
1Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science , Northwest University , Xi'an 710127 , P. R. China.
Journal of the American Chemical Society
|January 16, 2020
まとめ
新しい三角三金属サンドイッチ複合体は 管やヘリケートやケージのような 多様な超分子構造に 自己組み立てされます メタルの選択は変形を誘導し ゲストを封じ込めることができるケージで これらのアセンブリのための新しい機能を披露します
科学分野:
- 超分子化学
- 協調化学
- 材料科学
背景:
- 超分子構造の性質は金属中心と有機結合体に依存する.
- 新しいシステムは新しい機能とアプリケーションを提供します.
- 複雑なアーキテクチャを作成する上で 重要な戦略です
研究 の 目的:
- 三角形三金属のサンドイッチブロックを開発する.
- これらのブロックとオルガノ硫黄結合体を使って 超分子組成を作ります
- セルフアセンブリの結果に対する金属センターの影響を調査する.
主な方法:
- 離散三角三金属サンドイッチ複合体の合成 (PdとPt類).
- 二機能と三機能の有機硫黄結合体による協調制御による自己組み立て
- X線結晶学を用いた構造的特徴付け
主要な成果:
- パラジウムによるチューブ状 (Tr2Pd3) 4L6組成.
- プラチナでトリプルヘリケート (Tr2Pt3) 2L3の形成
- 三機能リガンドを用いた2つの金属で面蓋の四面体ケージ (Tr2M3) 4L4の形成.
- チューブとヘリケート間の金属クラスター誘発構造変化の観察.
- テトラエドールケージ内のゲストの封じ込めのデモ
結論:
- 分離した三角三金属サンドイッチのブロックは,多様な超分子構造の合理的な設計を可能にします.
- メタルセンター (Pd vs. Pt) の選択は,自己組み立ての経路と結果の構造を決定する.
- 合成された超分子ケージは 宿主-ゲストの化学反応の可能性を示しています
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