A pillared metal–organic framework incorporated with 1,2,3-triazole moieties exhibiting remarkable enhancement of CO2 uptake

The replacement of the pillar ligand, 4,4′-bipyridine, in the prototypal pillared MOF, MOF-508, with the custom-designed ligand, 4,4′-(2H-1,2,3-triazole-2,4-diyl)dipyridine, affords a porous metal–triazolate framework, MTAF-3, which demonstrates remarkable enhancement of CO2 uptake capacity by a factor of ∼3 compared to the parent MOF-508.