ENDOR光譜法で観測されたpi-stackedコヴァレンントおよび自己組み立てペリレンダイミドの電子ジャンプ
Michael J Tauber1, Richard F Kelley, Jovan M Giaimo
1Department of Chemistry and Center for Nanofabrication and Molecular Self-Assembly, Northwestern University, Evanston, IL 60208-3113, USA.
Journal of the American Chemical Society
|February 9, 2006
まとめ
電子のジャンプは,ペリレン・ビス・ディカルボキシミド (PDI) ダイマーで発生し,超精密結合定数が半減していることが証明されています. これは,溶液中の減少および中性PDI染色体間の電子共有を明らかにします.
科学分野:
- オーガニック・エレクトロニクス
- フォトフィジックスの光学
- 超分子化学とは
背景:
- ペリレンビス (((ディカルボキシミド)) (PDI) 誘導体は,重要な有機半導体である.
- PDIアグレガートのチャージトランスポートを理解することは,デバイスアプリケーションの鍵です.
研究 の 目的:
- PDIの過激アニオンにおける電子共有と輸送メカニズムを調査する.
- 結合結合と自己組み立てPDIシステムにおける電子ダイナミクスを研究する.
主な方法:
- 室温,溶液相電子パラマグネティック共振 (EPR).
- 電子核二重共鳴 (ENDOR) スペクトロスコーピー. 電子核二重共鳴 (ENDOR) スペクトロスコーピー. 電子核二重共鳴 (ENDOR) スペクトロスコーピー. 電子核二重共鳴 (ENDOR) スペクトロスコーピー. 電子核二重共鳴 (ENDOR) スペクトロスコーピー.
- 電子吸収スペクトロスコーピー.
主要な成果:
- 超精密結合定数は,PDIジマーでモノマーと比較して半減し,完全な電子共有を示しています.
- 電子がPDI染色体とPDI染色体との間に107Hz以上の時間スケールでジャンプしている証拠.
- 顕微鏡データは,共振性および自己組み立てPDI集積物における電子相互作用を確認した.
結論:
- 電子ホッピングは,PDIシステムにおける重要な電荷輸送機構である.
- 観測された電子共有は,PDI二次元における効率的な電荷移位を容易にする.
- ソリューション・フェーズ・スタディは,オーガニック・エレクトロニクスに関連したPDI電子行動に関する基本的な洞察を提供します.
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