Chen Kai, Wu Chuan-De
State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China.
Angew Chem Int Ed Engl. 2019 Jun 11;58(24):8119-8123. doi: 10.1002/anie.201903367. Epub 2019 May 7.
Metal-organic frameworks (MOFs) are an emerging class of porous materials with attractive properties, however, their practical applications are heavily hindered by their fragile nature. We report herein an effective strategy to transform fragile coordination bonds in MOFs into stable covalent organic bonds under mild annealing decarboxylative coupling reaction conditions, which results in highly stable organic framework materials. This strategy successfully endows intrinsic framework skeletons, porosity and properties of the parent MOFs in the daughter organic framework materials, which exhibit excellent chemical stability under harsh catalytic conditions. Therefore, this work opens a new avenue to synthesize stable organic framework materials derived from MOFs for applications in different fields.
金属有机框架材料（MOFs）是一类具有吸引人特性的新兴多孔材料，然而，它们的实际应用因其脆弱的性质而受到严重阻碍。我们在此报告一种有效的策略，即在温和的退火脱羧偶联反应条件下，将MOFs中脆弱的配位键转化为稳定的共价有机键，从而得到高度稳定的有机框架材料。该策略成功地在衍生的有机框架材料中赋予了母体MOFs的固有框架骨架、孔隙率和性质，这些材料在苛刻的催化条件下表现出优异的化学稳定性。因此，这项工作为合成源自MOFs的稳定有机框架材料以用于不同领域开辟了一条新途径。
