Synthesis, Structures, and Antimicrobial Activity of Schiff Base Cobalt Complexes [Co(HL<sup>1</sup>)<sub>2</sub>(N<sub>3</sub>)<sub>2</sub>]·H<sub>2</sub>O and [CoL<sup>2</sup> <sub>2</sub>]·ClO<sub>4</sub>
作者:Ling-Wei Xue、Yong-Jun Han、Gan-Qing Zhao、Yun-Xiao Feng
DOI:10.1080/15533174.2011.609510
日期:2012.2.1
The new Schiff bases 4-bromo-2-[(3-diethylaminopropylimino) methyl] phenol (HL1) and 2-methoxy-6-[(2-phenylaminoethy limino) methyl] phenol (HL2) derived from5-bromosalicylaldehyde with N, N-diethylpropane -1,3-diamine and 3-methoxysalicylaldehyde with N-phenylethane-1,2-diamine, respectively, and their cobalt complexes, [Co(HL1)(2)(N-3)(2)]center dot H2O and [CoL22]center dot ClO4, have been prepared and characterized by elemental analyses, infrared, and single crystal X-ray crystallographic determination. The HL1 coordinates to the Co atom through the phenolic O and imino N atoms with a zwitterionic form, while the HL2 coordinates to the Co atom through the phenolic O, imino N, and amino N atoms with a deprotonated form. Each Co atom in the complexes adopts an octahedral coordination. The effect of the Schiff bases and the complexes on the antimicrobial activity against Staphylococcus aureus, Escherichia coli, and Candida albicans were studied.