Li Ke, Yang Jian, Gu Jinlou
Key Laboratory for Ultrafine Materials of Ministry of Education , School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China . Email:
Chem Sci. 2019 Apr 26;10(22):5743-5748. doi: 10.1039/c9sc01447k. eCollection 2019 Jun 14.
Metal-organic frameworks (MOFs) are attracting immense research interest despite the fact that their synthesis usually proceeds in organic media or under harsh conditions depending on specific cases. Herein, Hofmeister effect was firstly introduced for the construction of MOFs and thereafter a general salting-in species (SS) induced self-assembly strategy was proposed for the aqueous-phase and mild synthesis of stable MOFs based on a unique "solubilization-mediating" mechanism. The SS not only improved the solubility of organic ligands, but also effectively mediated the mutual proximity of the organic linkers and the inorganic nodes, thus facilitating the crystallization of MOFs under mild conditions. Several typical and highly useful stable MOFs were exemplified owing to the availability of various SS. This strategy could set a framework for the development of more stable MOFs in aqueous phase and drive the large-scale and economic production of MOFs.
金属有机框架材料（MOFs）尽管在特定情况下其合成通常在有机介质中或在苛刻条件下进行，但仍吸引了大量的研究兴趣。在此，首次将霍夫迈斯特效应引入到MOFs的构建中，随后基于独特的“增溶介导”机制，提出了一种通用的盐溶物种（SS）诱导自组装策略，用于水相温和合成稳定的MOFs。SS不仅提高了有机配体的溶解度，还有效地介导了有机连接体与无机节点的相互靠近，从而促进了MOFs在温和条件下的结晶。由于各种SS的可用性，列举了几种典型且非常有用的稳定MOFs。该策略可为水相中更稳定的MOFs的开发建立一个框架，并推动MOFs的大规模经济生产。
