One-Pot, Room-Temperature Conversion of CO2 into Porous Metal−Organic Frameworks

We demonstrate the one-pot synthesis of highly porous crystalline metal−organic frameworks, [Zn₄O(piperazine dicarbamate)₃], an analogue of [Zn₄O(1,4-benzenedicarboxylate)₃] (MOF-5), directly from atmospheric pressure CO₂ gas and piperazine derivatives at 25 °C. The structures showed high CO₂ contents over 30 wt% and surface areas of 1270−2366 m² g⁻¹. We also show that the synthesis is feasible even by the use of 400 ppm of CO₂.