Porous noria polymer: a cage-to-network approach toward a robust catalyst for CO₂fixation and nitroarene reduction

The advantages of the cage-to-network design strategy were demonstrated by knitting a waterwheel-like preporous molecular cage, noria, with a rigid aromatic linker to obtain a highly microporous organic polymer (NPOP,S_BET: 748 ± 25 m²g⁻¹). The NPOP was employed for the catalytic conversion of CO₂to cyclic carbonates under solvent-free reaction conditions. Furthermore, a silver nanoparticle encapsulated NPOP exhibited remarkable catalytic activity for nitroarene reduction with excellent recyclability.