(183m) Conversion of Hydroxy Double Salts for Scalable Synthesis of Metal-Organic Frameworks
Hydroxy double salts (HDSs) are layered compounds featured with fast anion exchange ability, and have been reported as key intermediates for facile MOF formation. Here, we extended this method to grow zeolitic imidazolate frameworks and fumarate-based MOF structures rapidly at room temperature. We synthesized [M1-xZnx(OH)2-y](NO3)y/zânH2O (M=Co, Cu) HDS structures by hydrolyzing ZnO in aqueous solution of M(NO3)2 at room temperature. These HDSs exhibit fast exchange rate with imidazolate and fumarate anions and subsequently convert to MOF structures. We will show how the shape and size of the organic linker anions affect HDSs conversion to MOFs, and discuss the differences between the conversion reaction and the intercalation reaction for HDSs during anion exchange.