Microporous Cu metal-organic framework constructed from V-shaped tetracarboxylic ligand for selective separation of C2H2/CH4 and C2H2/N2 at room temperature

Acetylene purification material: by using novel V-shaped tetracarboxylic ligand, a microporous Cu metal-organic framework 1 with dual functionalities of OMSs and LBSs has successfully synthesized for acetylene purification purpose. The framework contains two types of 1D intersecting channels with BET surface areas 628 m2g−1 and pore volume 0.23 cm3g−1. The active sample shows moderately high selective separation of C2H2 over CH4 and N2 at room temperature.368