Three zinc(Ⅱ) metal-organic frameworks (xF-MAC-3) have been synthesized by using Zn(Ⅱ) salts,3,5-dimethyl-lH-1,2,4-triazole (Hdmtrz) and different fluorination degree carboxylate ligands,which are analogic structures and can be described as (6,6)-connected pcu-b net.We find that the fluorine atoms have structural regulation effect on xF-MAC-3,which can not only enlarge the torsion angle φ of carboxylate ligands but also elevate the space group of structures.Besides,the CO2-273 K uptake increased from 23.21 cm3·g-1 (MAC-3) to 36.13 cm3·g-1 (4F-MAC-3) and H2-77 K uptake increased from 24.33 cm3·g-1 (MAC-3) to 59.79 cm3·g-1(4F-MAC-3),which means fluorination can enhance the gas adsorption uptake of xF-MAC-3 analogues.Furthermore,the results of fluorination in xF-MAC-3 analogues offer a potential way to study the ligand pre-functionalization effect on the structures and properties of MOFs analogues.