ドデカヌクレアとペンタデカヌクレア・ゴールドの間の写真と温度誘発可逆構造変容 ((I) 硫化物複合体
Liang-Liang Yan1, Vivian Wing-Wah Yam1
1Institute of Molecular Functional Materials, State Key Laboratory of Synthetic Chemistry, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China.
Journal of the American Chemical Society
|March 21, 2023
まとめ
2つの新しい黄金 (I) 硫化物クラスターは,驚くべき刺激反応構造の変容を示しています. 紫外線と温度は これらのクラスタを 逆転させ 新しい反応性のある材料の道を開くことができます
科学分野:
- 無機化学
- 材料科学
- 超分子化学
背景:
- 刺激に反応する構造的変容は 生物学的機能を模倣するのに不可欠です
- 高度な材料に特異な性質を備えている.
- 特定のリガンドを設計することは,クラスターの行動を制御する鍵です.
研究 の 目的:
- 前例のない十二核と五核の黄金の硫化物群を合成し,特徴づけること.
- これらのクラスター間の刺激反応の相互変換を調査する.
- 光誘発によるクラスター対クラスター変換のメカニズムを解明する.
主な方法:
- トリデント酸リンリガンド (L) を用いた黄金 (I) スルフィドクラスターの合成
- 十二核 (Au12) と五核 (Au15) クラスタの構造的特徴
- 核磁気共振 (NMR) スペクトロスコーピー,高解像度電気スプレーイオン化質量スペクトロメトリ (HR-ESI-MS) およびUV-VIS吸収スペクトロスコーピーを使用して構造変化の監視.
- 紫外線と温度によって誘発される刺激反応を調査する
主要な成果:
- 2つの新しい金 (I) 硫化物クラスターの合成成功:Au12とAu15.
- 紫外線と温度によって誘発されるAu12とAu15の逆転構造の実証
- フォト誘発によるクラスタからクラスタへの変換に関する詳細なメカニズム的な洞察
- クラスターの組み立てと変換を指揮するリガンドLの重要な役割の確認.
結論:
- この研究は,ポリデント酸リンリガンドを用いた光誘発のクラスター対クラスター変換のための新しいパラダイムを提示する.
- 開発された黄金 (I) 硫化物クラスターは,新しい刺激反応性物質の構築に重要な可能性を示しています.
- この発見は,調整可能な特性を備えた高度な機能性材料の設計に新しい道を開きます.
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