Robust Bifunctional Lanthanide Cluster Based Metal-Organic Frameworks (MOFs) for Tandem Deacetalization-Knoevenagel Reaction

A series of 12-connected lanthanide cluster based metal-organic frameworks (MOFs) have been constructed by [Ln(6)(mu(3)-OH)(8)(COO-)(12)] secondary building units (SBUs) and 2-aminobenzenedi-carboxylate (BDC-NH2) ligands. These obtained materials exhibit high chemical stability and generic thermal stability, especially in acidic and basic conditions. They also present commendable CO, adsorption capacity, and Yb-BDC-NH2 was further confirmed by a breakthrough experiment under both dry and wet conditions. Moreover, these materials possess both Lewis acid and Bronsted base sites that can catalyze one-pot tandem deacetalization-Knoevenagel condensation reactions.