新しい自己貫通型の均一な網 (8,4) (または8(6) は,平面の4座標のノードを含む
Ming-Liang Tong1, Xiao-Ming Chen, Stuart R Batten
1School of Chemistry & Chemical Engineering and State Key Laboratory of Optoelectronic Materials & Technologies, Sun Yat-Sen University, Guangzhou 510275, PR China. cestml@zsu.edu.cn
Journal of the American Chemical Society
|December 25, 2003
まとめ
研究者は,水熱反応を用いて,新しいニッケルベースの協調ポリマーを合成した. 異なる温度で異なるポリモルフが観察され,ユニークな3Dネットワークトポロジーと1Dチェーンが明らかになりました.
科学分野:
- マテリアルサイエンス 材料科学
- クリスタログラフィーです.
- 協調化化学について
背景:
- コーディネーションポリマーは,調整可能な構造によって,多様な用途を持つ材料です.
- 水熱合成は,結晶性物質を作るための重要な方法である.
- ネットワークトポロジーの理解は,特定の性質を持つ材料の設計に不可欠です.
研究 の 目的:
- 水熱合成によるニッケル基調整ポリマーの形成を調査する.
- 異なる温度で得られた異なるポリモルフを特徴付けるために.
- 合成された材料のユニークなネットワークトポロジーを解明する.
主な方法:
- 3−(3−ピリジル) アクリル酸 (pyaraH),NiCl2,NaOHを含む水熱反応.
- 異なる温度 (180°Cと150°C) で結晶する.
- 結果のポリモルフの構造分析.
主要な成果:
- 2つのポリモルフの形成:アルファ-ニオール (pyara) 2 (H2O) 2を180°Cで,ベータ相を150°Cで形成する.
- アルファフェーズは,以前から知られている均一なネットワークとは異なる,新しい,自己浸透,四座標 (8,4) ネットワークトポロジー (シュラフリシンボル86) を表しています.
- ベータフェーズは,水素結合によって3Dネットワークに相互接続された1Dチェーンで構成されています.
結論:
- 水熱合成は,多様なニッケル調整ポリマー構造への経路を提供します.
- 以前に認識されていなかった基本的なネットワークトポロジーが特定されました.
- 温度は,調整ポリマーの最終的な構造と寸法を決定する上で重要な役割を果たします.
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