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Post-synthetic modification is a viable route for the introduction of surface sites with new chemical properties in metal–organic framework compounds. Herein we demonstrate that it is possible to perform covalent post-synthetic modifications of the UiO-66–NH2 MOF with four different acid anhydrides. FT-IR is employed to monitor the reactions and the extent of reaction depends on the bulkiness of the anhydrides. For the smallest one, acetic anhydride, 100% conversion to UiO-66–NHCOCH3 was observed.
Kandiah et al. (Fri,) studied this question.