柱の層次組立によって準備された微孔の多層フィルムによる分子認識[5]

Tomoki Ogoshi¹, Shu Takashima¹, Tada-aki Yamagishi¹

¹Graduate School of Natural Science and Technology, Kanazawa University , Kakuma-machi, Kanazawa, 920-1192, Japan.

Journal of the American Chemical Society

|August 14, 2015

まとめ

ピラー[5]アレンの多層膜はパラディニトロベンゼンを選択的に吸収する. この形状選択的吸収は,表面の静電電位によって駆動され,膜の厚さとともに増加し,同位体分離のための新しい方法を提供します.

科学分野:

材料科学
超分子化学
ナノテクノロジー

背景:

ピラーアレンは,調節可能な性質を持つマクロサイクル化合物である.
層ごとに組み立てることは,薄いフィルムを作るための汎用的な技術です.
ディニトロベンゼンイソマーの分離は,それらの類似した構造のために困難です.

研究の目的:

ピラー[5]アレンベースの多層フィルムを構成する.
これらのフィルムの形状選択的吸附特性について調査する.
吸着における表面静電電位の役割を理解する.

主な方法:

カチオンおよびアニオン柱[5]アレンの層次組成.
ディニトロベンゼン同位体 (オルト-, メタ-, パラ-) に膜を曝露する.
表面の静電電位と膜の厚さに基づく吸着の分析

主要な成果:

ピラー[5]アレンフィルムは,特にパラディニトロベンゼンの形状選択的吸収を示した.
吸着はフィルムの表面静電電位に依存した.
吸収されたパラディニトロベンゼンの量は堆積層の数とともに指数関数的に増加した.

結論:

ピラー[5]アレンの多層膜は,ダイニトロベンゼンの形状選択分離に有効である.
表面の静電電位は吸収機構において重要な役割を果たします.
開発されたフィルムは,化学センサーと分離技術における応用の可能性を示しています.

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