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ヘプタベンゾ[7]サーキュレンとオクタベンゾ[8]サーキュレンの合成,構造,および性質
Sai Ho Pun1, Yujing Wang1, Ming Chu1
1Department of Chemistry , The Chinese University of Hong Kong , Shatin , New Territories , Hong Kong.
Journal of the American Chemical Society
|May 28, 2019
まとめ
研究者らは,ユニークなヘリケーン構造を特徴とする新種のナノグラフェン,ヘプタベンゾ[7]シルクレンおよびオクタベンゾ[8]シルクレンを合成した. これらの柔軟な分子はの形を呈し,超分子ナノシートを形成し,新しい2次元材料の可能性を示唆しています.
科学分野:
- 有機化学
- 材料科学
- ナノテクノロジー
背景:
- サーキュレンは,独特の電子および構造特性を有する多循環性芳香炭化水素である.
- 制御された曲率とトポロジを持つ新しいナノゲンの開発は,先進的な材料にとって極めて重要です.
研究 の 目的:
- 新しい完全オーソベンザル化された[n]サーキュレンの合成と特徴付け:ヘプタベンゾ[7]サーキュレンとオクタベンゾ[8]サーキュレン.
- 分子幾何学,電子特性,自己組織化について調べる
- 新しい二次元材料の 構成要素としての可能性を探るため
主な方法:
- 標的サーキュレンの合成のためのショール反応.
- 分子幾何学と電子構造を決定する量子化学計算.
- 単一結晶X線 difraktion構造を確認し,パッキングを分析する.
主要な成果:
- ヘプタベンゾ[7]シルキュレンとオクタベンゾ[8]シルキュレンの合成が成功し,収穫は良好から優れたものとなった.
- 計算データと実験データは,柔軟な形幾何学 (C2とD2d対称性) を確認しています.
- 超分子ナノシートを形成するテトラベンゾ[8]サーキュレンの新型π-πスタッキングモチーフの発見.
結論:
- ヘプタベンゾ[7]サーキュレンとオクタベンゾ[8]サーキュレンは,負の曲線ナノグラフェンとヘリケンの新種である.
- 独特の分子包装と半導体特性により 新しい超分子二次元材料の可能性が示唆されています
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