ハッシュマーク形のアザアセンテトラマーと軸性キラリティ

Yuki Inoue¹, Daisuke Sakamaki¹, Yusuke Tsutsui¹

¹Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan.

Journal of the American Chemical Society

|May 22, 2018

まとめ

研究者らはアサペンタセンの新型テトラマーを合成した. これらの光学的に活性な分子は,強烈な円形の偏光を含む独特の光学特性を表しており,その構成はX線分析によって確認されました.

科学分野:

有機化学
材料科学
超分子化学

背景:

アザペンタセンの誘導体は,その電子的および光学的性質のために調査されています.
複雑な有機構造のキロプティカルな性質は,重要な関心があります.
独特の形を持つ新しい分子構造を開発することは重要な課題です

研究の目的:

アサペンタセンの誘導体の新しいハッシュマーク (#) 型テトラムを合成し,特徴づけること.
このユニークなテトラメアの円形の偏光光 (CPL) を含め,カイロプティックな性質を調査する.
テトラメアの絶対的構成と再酸化行動を決定する.

主な方法:

#形のテトラマーを簡単に合成する.
UV-VisとCPLスペクトル検査を含むスペクトル分析
ディケーション塩のX線結晶構造の決定

主要な成果:

4つのダイヒドロジアペンタセン (DHDAP) ユニットから成る光学的に活性な#形テトラマーを成功裏に製造した.
2.5 × 10^-3の非対称性因数を持つ激しいCPLの観測.
レドックス刺激によって調節されたNIR CDスペクトルで絶対的構成とレドックス活性を実験的に決定する.

結論:

合成された#形テトラメアは,光学的に活性な分子の一種であり,カイロプティカル材料に潜在的応用がある.
この研究は,分子構造の制御に成功し,独特の光物理的特性を示しています.
レドックス交換可能なカイロプティック特性が達成され,反応性のある材料への道が開けました.

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