“Shake ‘n Bake” Route to Functionalized Zr-UiO-66 Metal–Organic Frameworks
Roberto D’Amato, Roberto Bondi, Intissar Moghdad, Fabio Marmottini, Matthew J. McPherson, Houcine Naı̈li, Marco Taddei, Ferdinando Costantino
Abstract
precursors and various substituted dicarboxylic linkers. The syntheses are carried out by grinding in a ball mill the starting reagents, namely, Zr salts and the dicarboxylic linkers, in the presence of a small amount of acetic acid and water (1 mL total volume for 1 mmol of each reagent), followed by incubation at either room temperature or 120 °C. Such a simple "shake 'n bake" procedure, inspired by the solid-state reaction of inorganic materials, such as oxides, avoids the use of large amounts of solvents generally used for the syntheses of Zr-MOF. Acidity of the linkers and the amount of water are found to be crucial factors in affording materials of quality comparable to that of products obtained under solvo- or hydrothermal conditions.