Nitrogen-Rich Mn-Based Metal-Organic Frameworks for Small Molecule Adsorption and Activation through Polarization.

To address the far-reaching consequences of radioiodine contamination and CO emissions, heteroatom engineering in materials has emerged as a promising strategy. In this study, three thermally and chemically stable Mn-based metal-organic frameworks (MOFs), 1-3, are synthesized using (i) a dicarboxylate ligand with an oxadiazole core, and (ii) nitrogen-rich ligands with varying spacers between the bis(tridentate) ends. The incorporation of a heterocyclic core and nitrogen atoms enhances polarity, while Lewis acidity of Mn ion strengthens small molecule interactions.