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Fused Filament Fabrication FFF of Metal-Ceramic Components
Published on: January 11, 2019
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金属安定化キノイドル・ディベンゾ[g,p]クリゼン溶融ビスカルバコレル系
Xian-Sheng Ke1, Yongseok Hong2, Vincent M Lynch1
1Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712-1224 , United States.
Journal of the American Chemical Society
|May 23, 2018
まとめ
金属複合化戦略を開発し 安定したキノイドポリサイクル芳香炭化水素 (PAH) を生み出しました ビス・ディカルバコレルのリガンドに二重パラジウムを挿入すると,新しい材料の設計に役立つユニークな電子と光学特性を有するキノイド種が得られる.
科学分野:
- 有機化学
- 材料科学
- 超分子化学
背景:
- ポリサイクルアロマティック炭化水素 (PAH) は材料科学において極めて重要です.
- 拡張されたポルフィリンとその金属複合体は調節可能な電子特性を提供します.
- 特定の光学特性を有する安定したキノイド型PAHの開発は依然として課題です.
研究 の 目的:
- 安定したクイノイド型PAH誘導体を合成するための金属複合化戦略を開発する.
- 電子と光学的性質を調査する 新しい二金属化された膨張ポルフィリン.
- リガンドの電子特性を微調整するメタライゼーションの可能性を調査する.
主な方法:
- ディベンゾ[g,p]クリセンの融合したビス・ディカルバコーロール・リガンドの合成
- パラジウム (II) イオンの二重挿入により,ビスメタル化複合体を形成する.
- NMR光学,EPR,X線結晶学,ラーマン光学および計算方法 (HOMA,NICS) を用いた特徴化.
主要な成果:
- 安定したビスメタレート複合体 (bis- Pd) が合成され,キノイドの性質を示した.
- bis-Pd複合体は,NIR領域 (1420 nm) への最も低いエネルギー吸収帯で有意な赤色シフトを示した.
- 顕微鏡および計算分析により,ビス-Pdシステムのキノイド性および閉殻電子構造が確認され,ズウィテリオン共鳴の証拠が示された.
結論:
- 金属複合は安定したクイノイド型PAHへの効果的な経路を提供します.
- bis-Pd複合体は,強いソルバトクロミズムを含む,調整可能な電子および光学特性を示しています.
- このアプローチは,高度な用途に合わせた長波長吸収を持つ新しいキノイド式PAHを設計するための一般化可能な戦略を提供します.
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