Abstract

Two fof-type porous metal–organic frameworks (MOFs), [Cu2(bdfdpa)(H2O)2]·8DMF·2H2O (JLU-Liu29) and [Cu2(btadpa)(H2O)2]·7DMF·8H2O (JLU-Liu30) (H4bdfdpa = 5,5′-(benzo[1,2-b:4,5-b′]difuran-2,6-diyl)diisophthalic acid and H4btadpa = 5,5′-(benzo[c][1,2,5]thiadiazole-4,7-diylbis(ethyne-2,1-diyl))diisophthalic acid), have been successfully synthesized by using different expanded tetracarboxylate ligands. Both of them exhibit good permanent porosity and high surface areas of 2205 and 1791 m2 g–1, respectively. Due to open metal sites, different functional groups, and suitable pore spaces, the two porous MOFs exhibit high adsorption performance for small molecule gases (CO2, CH4, C2H6, and C3H8) and removal of refractory organosulfur compounds.

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