ゴールデン・オportunity: クリック可能なアジド-機能化された [Au25(SR) 18]- ナノクラスタープラットフォームのインターフェース表面修正
Praveen N Gunawardene1, John F Corrigan1, Mark S Workentin1
1Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research , The University of Western Ontario , London , Ontario N6A 5B7 , Canada.
Journal of the American Chemical Society
|July 9, 2019
まとめ
研究者らは,表面修正のためのアジド群を備えた新しい金ナノクラスタープラットフォームを開発しました. これらの原子精度の高いナノマテリアルの直接合成と 汎用的な組み立て後の機能化が可能になります
科学分野:
- ナノ材料科学
- 表面化学
- 有機化学
背景:
- 原子的に正確な金ナノクラスターは有望ですが,直接合成と表面化学プラットフォームがありません.
- 既存のナノクラスターシステムは, 調整されたインターフェイス変更に課題を提示します.
研究 の 目的:
- 表面反応性金ナノクラスタープラットフォームを開発する
- 金ナノクラスタの直接合成と容易な組み立て後の表面機能化を可能にします.
主な方法:
- 表面にアジド分子が付着している[Au25 ((SCH2CH2-p-C6H4-N3) 18) ]ナノクラスターの合成.
- 単結晶X線結晶学,質量スペクトロメトリー,および様々なスペクトロスコピー (UV-Vis,IR,NMR) を使用した構造的特徴付け.
- シクロオクチンによるストレス誘発性アルキネアジドサイクル添加 (SPAAC) の実証
主要な成果:
- [Au25 ((SCH2CH2-p-C6H4-N3) 18) - ナノクラスタを合成し,構造的に確認しました.
- すべての表面アジド群は,SPAACの化学反応に反応した.
- ゴールドナノクラスタの組み立て後の表面改変のための新しいプラットフォームを確立しました.
結論:
- 開発されたナノクラスタープラットフォームは,合成と多用途の表面化学のための直接的な経路を提供します.
- この画期的な発見により 著名なゴールドナノクラスターシステムの 適した機能化が可能になります
- 制御された表面工学による原子精度の高いナノクラスタの高度な応用のための新しい道を開きます.
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