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Updated: Oct 14, 2025

Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
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化学的に安定したカーバゾール基のイミン共性有機フレームワークで,湿度制御アプリケーションのための酸色反応

Leisan Gilmanova1, Volodymyr Bon1, Leonid Shupletsov1

  • 1Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany.

Journal of the American Chemical Society
|November 2, 2021
PubMed
まとめ

新しい共性有機フレームワーク (COF) は,室内の湿度を効率的に制御するための優れた安定性と多孔性を示しています. これらの材料はpHに依存する逆転性を持ち,高度な水分管理の応用の可能性を示しています.

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Basicity of Heterocyclic Aromatic Amines

Heterocyclic amines, where the N atom is a part of an alicyclic system, are similar in basicity to alkylamines. Interestingly, the heterocyclic amine having a nitrogen atom as part of an aromatic ring has much less basicity than its corresponding alicyclic counterpart. For this reason, as presented in Figure 1, piperidine (pKb = 2.8) is significantly more basic than pyridine (pKb = 8.8).
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Imine formation involves the addition of carbonyl compounds to a primary amine. It begins with the generation of carbinolamine through a series of steps involving an initial nucleophilic attack and then several proton transfer reactions. The second part includes the elimination of water, as a leaving group, to give the imine.
Imines are formed under mildly acidic conditions. A pH of 4.5 is ideal for the reaction.
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