Novel Microporous Metal–Organic Framework Exhibiting High Acetylene and Methane Storage Capacities

A new organic hexacarboxylic acid, 5,5′,5″-(9H-carbazole-3,6,9-triyl)triisophthalic acid (H6CTIA), was developed to construct its first microporous metal–organic framework (MOF), Cu6(CTIA)2 (ZJU-70). With open metal sites and suitable pore sizes, this MOF exhibits high acetylene and methane storage capacities at room temperature.