复旦大学李鹏团队综述了具有高化学和热稳定性的氢键有机框架的设计规则。相关研究成果于2022年6月8日发表在《美国化学会杂志》。

氢键有机框架（HOsF）是由预先设计的具有互补氢键模式的分子结构自组装而成，正迅速发展成为一类新型的重要多孔材料。除了它们与其他由模块化构建块构建的功能化多孔材料的共同特征外，固有的柔性和可逆氢键连接赋予HOFs简单的纯化程序、高结晶度、溶液加工性和可回收性。

HOFs的这些独特优势在广泛的领域引起了人们的极大关注，包括气体吸附和分离、催化、化学传感以及电学和光学材料。然而，HOFs中相对较弱的氢键相互作用可能会限制其稳定性和在进一步应用中的潜在用途。为此，该文强调了化学和热稳定性HOF材料开发的最新进展，并系统地讨论了获得高稳定性HOFs的相关设计规则和合成策略。

附：英文原文

Title: Design Rules of Hydrogen-Bonded Organic Frameworks with High Chemical and Thermal Stabilities

Author: Xiyu Song, Yao Wang, Chen Wang, Dong Wang, Guowei Zhuang, Kent O. Kirlikovali, Peng Li, Omar K. Farha

Issue&Volume: June 8, 2022

Abstract: Hydrogen-bonded organic frameworks (HOFs), self-assembled from strategically pre-designed molecular tectons with complementary hydrogen-bonding patterns, are rapidly evolving into a novel and important class of porous materials. In addition to their common features shared with other functionalized porous materials constructed from modular building blocks, the intrinsically flexible and reversible H-bonding connections endow HOFs with straightforward purification procedures, high crystallinity, solution processability, and recyclability. These unique advantages of HOFs have attracted considerable attention across a broad range of fields, including gas adsorption and separation, catalysis, chemical sensing, and electrical and optical materials. However, the relatively weak H-bonding interactions within HOFs can potentially limit their stability and potential use in further applications. To that end, this Perspective highlights recent advances in the development of chemically and thermally robust HOF materials and systematically discusses relevant design rules and synthesis strategies to access highly stable HOFs.

DOI: 10.1021/jacs.2c02598

Source: https://pubs.acs.org/doi/10.1021/jacs.2c02598