Microporous Metal–Organic Framework Based on Mixing Nanosized Tris((4-carboxyl)-phenylduryl)amine and 4,4′-Bipyridine Ligands for Gas Storage and Separation

The assembly of mixing nanosized tris­((4-carboxyl)­phenylduryl)­amine
ligand and 4,4′-bipyridine ligand with Zn2+ ion
leads to a new microporous framework FIR-2 having pillared-layer
structure and unusual (3,4,6)-connected topology, which exhibits large
surface area and gas adsorption selectivity for the adsorption of
CO2 over N2 or CH4. The results reveal
the potential application of the long tris­((4-carboxyl)­phenylduryl)­amine
ligand on the construction of functional microporous metal–organic
frameworks with interesting structural topologies for gas storage
and separation.