アルキルスペーサーの長さの運動制御超分子ポリメリゼーションにおける集積経路への影響

Soichiro Ogi¹, Vladimir Stepanenko¹, Johannes Thein¹

¹Universität Würzburg , Institut für Organische Chemie and Center for Nanosystems Chemistry, Am Hubland, 97074 Würzburg, Germany.

Journal of the American Chemical Society

|December 25, 2015

まとめ

分子の構造が自己組織化に影響するかを研究しました短い間隔は予測可能な繊維形成につながりますが,特定の長さは安定した,経路外ナノ粒子集積を形成します.

科学分野:

超分子化学
材料科学
オーガニックの電子機器

背景:

ペリレンビシミド (PBIs) は,有機電子学の応用があるπ結合分子である.
超分子ポリメリゼーションにより,秩序あるナノ構造が形成されます.
材料の特性には自己組み立ての運動制御が不可欠です

研究の目的:

アミド機能化されたPBIにおける超分子ポリメリゼーションの運動および熱力学的制御を調査する.
セルフアセンブリ経路におけるアルキルスペーサーの長さの役割を理解する.
分子設計を通じて超分子ポリメリゼーションの運動制御を達成する.

主な方法:

異なるアルキルスペーサー長さ (C2-C5) のアミド機能化されたPBI器官ゲレータの合成.
低極性溶媒における超分子分子化運動と熱力学の調査.
顕微鏡やスペクトル鏡のような技術を用いてナノ構造の形成を分析する.

主要な成果:

アミド機能化されたPBIsは,熱力学的に安定した一次元繊維ナノ構造を形成する.
スパッサーの長さは,超分子ポリメリゼーションの運動経路に大きな影響を与える.
ブチレン (C4) 隔離器は,運動的に安定した,経路外ナノ粒子集合体の形成を可能にします.

結論:

アルキルスペーサーの長さは,PBIにおける超分子ポリメリゼーション経路を制御するための重要なパラメータです.
最適なC4スペーサーの長さは,前例のない運動的に安定した,オフパスの集合体の形成を可能にします.
このシステムは,シード戦略による超分子ポリメリゼーションに対する運動制御の可能性を示しています.

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