オープンシェル,発光,二次元コーディネーションポリマーとハネコブラットと三角形の有機基
Shun Kimura1,2, Motoyuki Uejima3, Wataru Ota4,5
1Institute for Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan.
Journal of the American Chemical Society
|March 15, 2021
まとめ
研究者らは,ハネコブ・スピン格子で発光する2D協調ポリマーを作成するために,新しい安定した有機基,tris ((3,5-dichloro-4-pyridyl) メチル基 (trisPyM) を開発した. この突破は 独特の電子と光学特性を 備えた先進的な材料を 構築する有望な基盤となるでしょう
科学分野:
- 材料科学
- 有機化学
- 超分子化学
背景:
- オーガニックラジカルは,オープンシェルコーディネーションポリマー (CP) の効果的な構成要素です.
- ミツバチの巣の回転格子を持つ二次元 (2D) のCPは,ユニークな電子的および物理的特性を提供します.
- 既存のハニコビ基CPは,化学的安定性が低く,結晶性が悪いことが多い.
研究 の 目的:
- 安定した有機基を合成して 2次元CPを作ります
- 新しい基質とその誘導された協調ポリマーの性質を調査する.
- 発光ブロックとして これらの材料の可能性を 探求するためです
主な方法:
- 新しい三角形の有機基,トリス3,5-ジクロル-4-ピリジル) メチル基 (trisPyM) の合成
- trisPyMの発光,光安定性,および調整能力の特徴
- ZnII(hfac) 2との複合による2D CP (trisZn) の形成と構造分析
主要な成果:
- TrisPyMは溶液 (λem = 665 nm) と固体状態 (λem = 700 nm) で発光する.
- TrisPyMは,従来の発光基と比較して,光安定性が著しく向上しています.
- 結果として得られた2D CP,trisZnは,安定したハネコム格子を持ち,発光率 (λem = 695 nmで79 K) を表している.
結論:
- TrisPyMは,非常に結晶的で持続的な2DハネコブCPを作成するための有望な構成要素です.
- 開発されたCPは,2DラジカルベースのCPの分野における発光材料の希少例である.
- この研究は,調整可能な電子的および光学的性質を持つ新しい機能的材料を設計するための道を開きます.
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