スケーラブル・ダイレクト・アリレーションで調製された離散型n型オリゴマーの長さに依存する性質の進化
Rukiya Matsidik1,2, Hartmut Komber3, Martin Brinkmann4
1Institut für Chemie, TU Chemnitz, Professur Polymerchemie, Straße der Nationen 62, 09111 Chemnitz, Germany.
Journal of the American Chemical Society
|April 6, 2023
まとめ
小分子とポリマーを結合して 有機電子を合成しました これらの材料は調節可能な性質を持ち,構造機能の研究のモデルとして機能します.
科学分野:
- オーガニックの電子機器
- 材料科学
- ポリマー化学
背景:
- オーガニックの電子機器は小分子とポリマーを使用し,中間特性を有する材料のギャップがあります.
- 小分子とポリマーの間の物質を探求することは オーガニック・エレクトロニクスの進歩に不可欠です
研究 の 目的:
- ナフタリン二酸化物 (NDI) とビチオフェン (T2) 単位を交互に用いた離散型n型オリゴマーのグラムスケール合成を開発する.
- オリゴーマー長さと構造が光学,電子,熱,構造特性に及ぼす影響を調査する.
- これらのオリゴーマーと,そのポリマー類似体 (PNDIT2) を比較する.
主な方法:
- パラジアム触媒によるC-H活性化による離散オリゴマーのグラムスケール合成.
- 光学,電子,熱,構造分析を含むオリゴマーの特性.
- 構造と性質の関係を理解するための理論的計算と実験的検証.
主要な成果:
- n型オリゴーマーT2-(NDI-T2) n (n ≤ 7) とNDI-(T2-NDI) n (n ≤ 8) の合成に成功し,持続長さは10 nmまでである.
- 強力なドナー-受容体システムにより,分子エネルギーレベルは鎖の長さに影響を受けませんでした.
- 線形オリゴーマーには高結晶度があり,枝分かれまたは末端のオリゴーマーには結晶度が低下し,無形な行動を示した.
- n=4 (真空) とn=8 (溶液) で飽和した吸収最大値.
結論:
- 離散型n型オリゴマーは,有機電子機器のための有望な材料のクラスを提供し,小分子とポリマーの間のギャップを埋める.
- C-H活性化方法は,明確に定義されたオリゴマーの高効率な合成を可能にします.
- これらのオリゴマーは,有機電子材料の長さ構造機能関係を研究するための優れたモデルシステムとして機能します.
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