2H 2/CH 4 and C 2H 2/N 2 at room temperature]]>

摘要

A novel microporous Cu-MOF [Cu3(L)2(DMF)]·(H3O)2·3DMF,1, with dual functionalities of open metal sites (OMSs) and Lewis basic sites (LBSs) based on a V-shaped organic ligand 5,5'-azanediyldiisophthalate was synthesized by hydrothermal method. The framework contains two types of 1D channels with BET surface areas 419?m2g?1and pore volume 0.23?cm3g?1. It shows moderately high adsorption selectivity for C2H2/CH4and C2H2/N2at room temperature, the selectivity is 122 and 7.8 (50% and 50%), 181 and 165.7 (5% and 95%).