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New zinc(II)-complexes with S-alkyl derivatives of thiosalicylic acid (alkyl = benzyl-(L1), methyl-(L2), ethyl-(L3), propyl-(L4), butyl-(L5)) have been synthesized and characterized by elemental microanalysis, IR spectroscopy, and 1H and 13C NMR spectroscopy. The S-alkyl derivatives of thiosalicylic acid were prepared by alkylation of thiosalicylic acid by adding alkyl halides to an alkaline water-ethanol solution, while the corresponding zinc(II)-complexes were obtained via the direct reaction of ZnCl2 with S-alkyl derivatives of thiosalicylic acid in water. Based on the microanalysis results and the IR and NMR spectra of the S-alkyl derivatives of thiosalicylic acid and the corresponding zinc(II)-complexes, we concluded that the ligands are bidentately coordinated to the zinc(II)-ion.

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. 4 (2008) 498-502; DOI: 10.2174/157340608785700162. M. Zupancic, I. Turel, P. Bukovec, A. White and D. J. Williams, Synthesis and characterization of two novel zinc(II) complexes with ciprofloxacin. Crystal structure of [C 17 H 19 N 3 O 3 F] 2 · [ZnCl 4 ] · 2H 2 O, Croat. Chem. Acta 74 (2001) 61-74. T. Mach, P. Neves, E. Spiga, H. Weingart, M. Winterhalter, P. Ruggerone, M. Ceccarelli and P. Gameiro, Facilitated permeation of antibiotics across membrane channels - Interaction of the quinolone moxifloxacin with the Omp F channel, J. Am. Chem. Soc. 40 (2008

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