Porous Double-Walled Metal Triazolate Framework Based upon a Bifunctional Ligand and a Pentanuclear Zinc Cluster Exhibiting Selective CO2 Uptake

The self-assembly of a custom-designed bifunctional ligand featuring both 1,2,3-triazolate and carboxylate donor groups with a pentanuclear zinc cluster generated in situ affords a double-walled metal triazolate framework (MTAF) material, MTAF-1 (Zn5(μ3-O)2(C9N3H5O2)5(H+)4(H2O)17(C3H7NO)10), which exhibits a surface area of 2300 m2/g and demonstrates interesting selective CO2 uptake performances.