複合的な柱状六角形ポリモルフィズムで,半フッ化電子受容ナフタレンビシミドの超分子組成である
Yu-Chun Wu1, Pawaret Leowanawat, Hao-Jan Sun
1Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States.
Journal of the American Chemical Society
|December 31, 2014
まとめ
新型ナフタレンビシミド (NBI) デリバティブは,キラル半フッ素化デンドロンで,自己組み立てにより,オーダーされた結晶と複雑な柱状六角形配列を形成します. これらの材料はオーガニック・エレクトロニクスにとって有望であり,フラーレンの受容体に対する代替案を提供している.
科学分野:
- 超分子化学 超分子化学
- マテリアルサイエンス 材料科学
- オーガニック・エレクトロニクス
背景:
- ナフタレンビシミド (NBIs) は強い電子受容性化合物である.
- フルレレン受容体は有機光伏で広く使用されていますが,限界があります.
- 環境に優しい機能群は,高度な材料には望ましい.
研究 の 目的:
- 新規のNBIデリバティブをキラル半化デンドロンで合成する.
- これらのNBIデリバティブの自己組み立て行動と固体構造を調査する.
- オーガニック・エレクトロニクスにおけるフルレン受容体に対する代替品としての潜在能力を探求する.
主な方法:
- 半フッ素化されたAB3ミニデンドロンに結合するメチレン単位 (m=1,2,3) の数値が異なるNBI誘導体の化学合成.
- 粉末と繊維のX線 difraktion (XRD) 研究. 粉末と繊維のX線 difraktion (XRD) 研究. 粉末と繊維のX線 difraktion (XRD) 研究. 粉末と繊維のX線 difraktion (XRD) 研究.
- 固体核磁共振 (NMR) スペクトロスコーピー. 固体核磁共振 (NMR) スペクトロスコーピー. 固体核磁共振 (NMR) スペクトロスコーピー.
- 微分スキャニング熱計 (DSC).
主要な成果:
- m=1 と m=2 の NBI デリバティブは,自己組織化してラメラ結晶に形成されます.
- m=3 の NBI デリバティブは,複雑で秩序付けられた列状六角配列に自己組み立てられます.
- これらの配列は,ファーストオーダー・フェーズ・トランジションなしに,柱状六角形のスーパー・ラットに移行した.
- 熱力学的に制御されたプロセスは,ラメラー構造と柱状六角構造の組み立てを統制した.
- 構造はXRDと固体NMRの組み合わせを使用して解明されました.
結論:
- 環境にやさしいキラル半フッ素化デンドロンを持つ新しいNBIデリバティブは,ユニークな自己組み立て特性を発揮します.
- オーダーされた柱状六角配列を含む複雑な超分子構造が達成できます.
- これらの材料は,超分子エレクトロニクスや,有機太陽光発電におけるフルレン受容体の潜在的な代替品として有望です.
- 開発された多テクニック構造分析方法論は,関連する研究に価値があります.
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