当有机官能团一起固定在金属有机框架（MOF）中时，其反应性发生意想不到的逆转

IF 3.2 3区工程技术 Q2 CHEMISTRY, PHYSICAL

Molecular Systems Design & Engineering Pub Date : 2024-03-19 DOI:10.1039/D3ME00185G

Pricilla Matseketsa, Donovan Mafukidze, Lahiru Pothupitiya, Udo P. Otuonye, Yasemin Çimen Mutlu, Boris B. Averkiev and Tendai Gadzikwa

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引用次数: 0

摘要

一种混合配体金属有机框架 (MOF) 材料（KSU-1）由含胺和羟基的连接体组成，并与多种异氰酸酯发生反应。羟基的反应程度高于胺，这与之前在同一种 MOF 中观察到的这些官能团的相对亲核性相矛盾。当单独固定在单官能团 MOF 中时，胺官能团连接体比羟基连接体的反应性更强，这表明在 KSU-1 中观察到的反应性逆转是由于这些官能团在 MOF 中相互限制所致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Unexpected reversal of reactivity in organic functionalities when immobilized together in a metal–organic framework (MOF)†

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Unexpected reversal of reactivity in organic functionalities when immobilized together in a metal–organic framework (MOF)†

A mixed-ligand metal–organic framework (MOF) material composed of both amine- and hydroxyl-bearing linkers, KSU-1, was reacted with a variety of isocyanates. The hydroxyl groups reacted to a greater extent than the amines, in conflict with the previously observed relative nucleophilicities of these functionalities in the same MOF. When immobilized individually in monofunctional MOFs, the amine-functionalized linker was more reactive than the hydroxyl linker, indicating that the reactivity reversal observed in KSU-1 is due to the groups' mutual confinement within the MOF.

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来源期刊

Molecular Systems Design & Engineering Engineering-Biomedical Engineering

CiteScore

6.40

自引率

2.80%

发文量

144

期刊介绍： Molecular Systems Design & Engineering provides a hub for cutting-edge research into how understanding of molecular properties, behaviour and interactions can be used to design and assemble better materials, systems, and processes to achieve specific functions. These may have applications of technological significance and help address global challenges.