SYNTHESES, CHARACTERIZATION, AND ANTIBACTERIAL PROPERTIES OF COPPER(II) COMPLEXES DERIVED FROM FLUORO-CONTAINING SCHIFF BASES

A centrosymmetric dinuclear copper(II) complex [Cu-2(L-a)(2)] (1) and two mononuclear copper(II) complexes [Cu(L-b)(2)] (2) and [Cu(L(C))(2)] (3), where L-a, L-b, and L(C) are deprotonated anionic forms of 2-((cyclopropylimino)methyl)-4,6-difluorophenol (HLa), 2-((cyclohexylimino)methyl)-4,6-difluorophenol (HLb) and 2,4-difluoro-6-((2-hydroxyethylimino)methyl)phenol (HL(C)), respectively, are prepared and characterized by elemental analyses, IR and UV-Vis spectra, and single crystal X-ray diffraction. The Cu atoms in complex 1 are in a square pyramidal coordination, while those in complexes 2 and 3 are in a square planar coordination. The complexes exhibit interesting antibacterial activities against P. aeruginosa, S. typhi, and S. aureus.