title: Synthesis, characterization and antibacterial activity of new sulfonyl hydrazone derivatives and their nickel(II) complexes.
abstract: Prophane sulfonic acid hydrazide (psh: CH(3)CH(2)CH(2)SO(2)NHNH(2)) derivatives as salicylaldehydeprophanesulfonylhydrazone (salpsh), 5-methylsalicylaldehydeprophanesulfonylhydrazone (5-msalpsh), 2-hydroxyacetophenoneprophanesulfonylhydrazone (afpsh), 5-methyl-2-hydroxyacetophenoneprophanesulfonylhydrazone (5-mafpsh) and their Ni(II) complexes have been synthesized. The structure of these compounds has been investigated by using elemental analysis, FTIR, (1)H NMR, LC/MS, UV-vis spectrophotometric method, magnetic susceptibility and conductivity measurements. The complexes were found to have general compositions [NiL2]. Square-planer structures are proposed for the Ni(II) complexes on the basis of magnetic evidence, electronic spectra and TGA data. Bacterial activities of sulfonyl hydrazone compounds were studied against gram-positive bacteria: Staphylococcus aureus, Bacillus subtilis, Bacillus magaterium and gram-negative bacteria: Salmonella enteritidis, Escherichia coli by using minimum inhibitory concentrations (MICs) method.
authors: Department of Chemistry, Faculty of Science and Art, Gazi University, 06500 Teknikokullar, Ankara, Turkey. ummuhan@gazi.edu.tr
authors: Ummühan Ozdemir
authors: UO
authors: Ozmen
authors: Gülçin
authors: G
authors: Olgun
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D006835:Hydrazones / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D009532:Nickel / Q000737:chemistry / Q000494:pharmacology*; D013055:Spectrophotometry, Infrared
chemical_list: D000900:Anti-Bacterial Agents; D006835:Hydrazones; D008024:Ligands; D009532:Nickel