導電網の選択的形成
Jin Young Koo1, Yumi Yakiyama1, Gil Ryeong Lee1
1The Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro, Namgu, Pohang 790-784, Korea.
Journal of the American Chemical Society
|January 28, 2016
まとめ
レドックス活性リガンドは,Cdベースの異なる調整ネットワークを形成する. リガンドのトレースラジカルは電子伝導ネットワークを誘導し,分離は非伝導ネットワークを誘導し,ユニークな酸化機構を明らかにする.
科学分野:
- 協調化学
- 材料科学
- オーガニック電子
背景:
- 調整ネットワークは,さまざまなアプリケーションにチューニング可能なプロパティを提供します.
- レドックス活性リガンドは,ユニークな電子および構造特性を導入することができます.
- リガンドアセンブリを制御することは,ネットワークの機能性にとって極めて重要です.
研究 の 目的:
- レドックス活性リガンドを使用して,選択的にCdベースの調整ネットワークを合成する.
- ネットワーク構造と伝導性に対するリガンド基種の影響を調査する.
- 協調ネットワーク内のリガンドの酸化メカニズムを解明する.
主な方法:
- Cdベースの協調ネットワークの選択的合成
- 2,5,8-トリ-ピリジル) 1,3-ジアフェナレン (TPDAP) をリドックス活性リガンドとして利用する.
- 異なる条件下でのネットワーク構造と電子特性の特徴 (TPDAP基の存在/不在)
主要な成果:
- チャンネルを含むCDベースの調整ネットワークの形成
- TPDAPラジカルの存在で形成された π-π 積み重ねの柱状のTPDAPネットワーク (1(•)).
- TPDAPジマーユニットによる非導電ネットワークは,TPDAPラジカルがない状態で形成される.
- TPDAPの二極化により,HOMOレベルが上昇し,さらに過激な形成が促進された.
結論:
- 微量のTPDAPが 独特の酸化メカニズムを開始します
- TPDAPを調整ネットワーク内のダイマーに組み立てることは,その電子特性の鍵です.
- この研究は,調整ネットワークの構造と伝導性を制御する際の急性種の重要性を強調しています.
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