Acid and base stability 10 mg of the corresponding MOF was immersed in 1 mL of each respective solvent or solution, which was added to the same glass-tubes used for synthesizing the material. The tubes were then sealed with PBT caps containing a PTFE seal and were subsequently stirred and heated to various temperatures for 24 h. Solutions of various pH were prepared by adding NaOH or HCl to deionized water in order to obtain the desired pH (Supplementary Fig. 22-30).