Two unreported metal–organic frameworks [Cu(6-Me-2,3-pydc)(1,10-phen)·7H2O]n (namely Cu-MOF) and [Mn2(2,2′-bca)2(H2O)2]n (namely Mn-MOF) were synthesized and characterized. Cu-MOF and Mn-MOF all can form a three-dimensional structure.

Two new bis-Schiff bases, namely 2-bromoisophthalaldehyde-2-aminofluorene (M1) and glutaraldehyde 2-aminofluorene (M2) were synthesized and were characterized, the potentiodynamic polarization curve confirmed that they were anode type inhibitors.

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Two undocumented cobalt (II) complexes 3pydc)namely Co-MOF 2), were successfully synthesized by solvothermal method. The X-ray single crystal diffraction, infrared spectrometer (IR), UV-Vis spectrum and X-ray diffraction were used to characterize and analyze the structure of the two MOFs. The single crystal structure analysis showed that Co-MOF 1 reconnected by CoÀ N bond and CoÀ O bond to form a onedimensional chains. The Co-MOF 2 was connected by CoÀ O and CoÀ N bonds to form a one-dimensional chain.The results indicated that complexes Co-MOF 1 and Co-MOF 2 have a certain thermal stability and fluorescence properties.