[ASAP] An Amino-Decorated Self-Catenated Metal–Organic Framework for Efficient Capture and Conversion of CO 2

Efficient capture and conversion of CO₂ are important in energy utilization and environmental protection. A new porous metal–organic framework [Zn₄O(NH₂-bpdc)₃(bpe)_0.5(H₂O)]·10DMF [NH₂-H₂bpdc = 2-amino-biphenyl-4,4′-dicarboxylic acid, bpe = 1,2-bi(4-pyridyl)ethylene] has been synthesized based on an amino-tagged organic linker and tetranuclear {Zn₄O} SBU. This compound exhibits an unusual self-catenated underlying net of topological type hxg-d-7–R-3c. The framework shows excellent thermal stability for the high connectivity and consists of abundant exposed metal sites and coordination-free amino groups, which make it an efficient heterogeneous catalyst for the cycloaddition of CO₂ with epoxides under mild conditions.