Abstract: | An anionic multifunctional porous metal organic framework (MOF), Cu2THBA(H2O)2] · (C3H7NO)12 · (H2O)10 ( 1 ) (H4THBA = p‐terphenyl‐3,2′′,3′′,5,5′′,5′′′‐ hexcarboxylic acid) with NbO‐type topology was synthesized and characterized. Due to multiple functional sites and suitable pore size, the desolvated compound 1a exhibits high separation selectivity for C2H2/CO2 of 30 and C2H2/CH4 of 131 at 1 kPa at room temperature. Compound 1 can also efficiently and completely separate methylene blue (MB+) molecules of low concentrations from aqueous solution in 12 h. |