文摘
A new three-dimensional Zn(II) metal鈥搊rganic framework (MOF) of {[Zn4(bpydb)3(datz)2(H2O)](DMF)4(EtOH)5(H2O)8}n (1, bpydbH2 = 4,4鈥?(4,4鈥?bipyridine-2,6-diyl) dibenzoic acid, Hdatz = 3,5-diamino-1,2,4-triazole) with amino- and pyridine-functionalized pores has been successfully constructed under solvothermal conditions by using the mixed-ligand strategy, which consists of twisty 63 layers pillared by datz鈥?/sup> ligands. The adsorption properties of this MOF were studied by CO2, N2, and CH4 sorption measurements. Compared with the analogous 4,4鈥?bipyridine (bpy) pillared MOF {Zn(bpydb)(bpy)}n (2) we reported earlier, the activated 1 showed enhanced CO2 sorption capacity and good sorption selectivity for CO2 over N2 and CH4 at room temperature.