Assembly of [Cu2(COO)4] and [M3(μ3-O)(COO)6] (M = Sc, Fe, Ga, and In) building blocks into porous frameworks towards ultra-high C2H2/CO2and C2H2/CH4separation performance

Porous MOFs built from paddle-wheel-like [Cu₂(COO)₄] and trigonal prismatic [M₃(μ₃-O)(COO)₆] SBUs exhibit ultra-high C₂H₂storage as well as C₂H₂/CO₂and C₂H₂/CH₄separations at room temperature.