Method for producing coordinatively unsaturated metal-organic framework and coordinatively unsaturated metal-organic framework
申请人:TOYOTA JIDOSHA KABUSHIKI KAISHA
公开号:US11078219B2
公开(公告)日:2021-08-03
[OBJECT] To provide a metal-organic framework having high hygroscopicity under low humidity conditions, and a method for producing such a metal-organic framework.
[SOLVING MEANS] A method for producing a coordinatively unsaturated metal-organic framework includes the steps of providing a precursor metal-organic framework comprising a metal cluster and a polycarboxylic acid ion and a monocarboxylic acid ion coordinated to the metal cluster, and allowing the precursor metal-organic framework and a metal salt having a Lewis acidity to coexist in a solvent to desorb at least a part of the monocarboxylic acid ion, which is coordinated to the metal cluster, from the metal cluster, as well as a coordinatively unsaturated metal-organic framework, including an M6O8-x(OH)x-type metal cluster and carboxylic acid ions including a polycarboxylic acid ion as a polydentate ligand and a C1-3 monocarboxylic acid ion as a monodentate ligand coordinated to the metal cluster.
[目的] 提供一种在低湿度条件下具有高吸湿性的金属有机框架,以及生产这种金属有机 框架的方法。
[解决方法]一种生产配位不饱和金属有机框架的方法包括以下步骤:提供一种前体金属有机框架,该前体金属有机框架由金属簇、多羧酸离子和与金属簇配位的单羧酸离子组成;使前体金属有机框架和具有路易斯酸度的金属盐在溶剂中共存,以解吸至少一部分单羧酸离子、以及配位不饱和金属有机框架,包括 M6O8-x(OH)x 型金属簇和羧酸离子,其中羧酸离子包括作为多齿配体的聚羧酸离子和作为单齿配体与金属簇配位的 C1-3 一羧酸离子。