歪んだヘクサベンゾコロネンリガンドによる結合された非平面銅-カテコラート導電金属-有機フレームワーク
Guolong Xing1, Jingjuan Liu2, Yi Zhou3
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
Journal of the American Chemical Society
|April 17, 2023
まとめ
研究者は溶解性非平面リガンドを用いた新しい導電性金属有機フレームワーク (c-MOF) を開発した. このアプローチは,高度な電子および光電子アプリケーションの電気伝導性と電荷キャリアの可動性を高めます.
科学分野:
- 材料科学
- 化学について
- ナノテクノロジー
背景:
- 伝導性金属有機フレームワーク (c-MOF) は,高い伝導性と電荷キャリアの移動性により,電子機器にとって有望である.
- 伝統的な平面リガンドの不十分な溶解性は,c-MOFの合成と応用を制限する.
- 非平面リガンドは有機溶剤に溶解性が向上し,新しいc-MOFの構築を可能にします.
研究 の 目的:
- 溶性非平面歪曲ヘクサベンゾコロネン (c-HBC) デリバティブを用いて新しいc-MOFを合成する.
- c-MOFの構造と特性に対するリガンド対称性と調整数の影響を調査する.
- 合成されたc-MOFの電気伝導性と電荷キャリアの移動性を評価する.
主な方法:
- 3つのc-MOF (c-HBC-6O-Cu,c-HBC-8O-Cu,c-HBC-12O-Cu) の合成,マルチトピックカテコールベースのc-HBCリガンドを使用する.
- 構造の特徴は,幾何学と梱包モードを決定する.
- 電気伝導性の測定
- 時間分解テラヘルツスペクトロスコーピーは,電荷キャリアの移動性を決定します.
主要な成果:
- 異なる幾何学と包装の3つのc-MOFの合成に成功しました.
- c-HBC-12O-Cuは最も高い電気伝導性を示した (3.31 S m−1).
- c-HBCベースのc-MOFでは38から64cm2V−1s−1のチャージキャリアモビリティがあった.
結論:
- 非平面の溶解性リガンドは,高性能のc-MOFを合成するのに有効です.
- リガンド設計は,c-MOF構造とチャージ輸送特性を調整するためのモジュラーアプローチを提供します.
- この研究は,光電子と電子のための優れた電子特性を持つc-MOFのファミリーを拡張します.
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