Water Stable Metal–Organic Framework Evolutionally Formed from a Flexible Multidentate Ligand with Acylamide Groups for Selective CO2 Adsorption

A water stable porous metal–organic framework has been synthesized through an evolution approach in terms of both structures and properties. This interesting pillar-layered MOF ({[Cu 2 (TCMBT)(bpp)(μ 3 -OH)]·6H 2 O} n ( 1 )) constructed from a flexible ligand possesses a BET surface area of 808.5 m 2 g –1 and exhibits good selectivities of CO 2 /N 2 (20.1:1) and CO 2 /CH 4 (4.0:1), which are comparable to those of the ZIF materials reported by Yaghi’s group. The excellent water stability of complex 1 would be quite preferable in practical application.