Synthesis, characterization, computational studies, antimicrobial activities and carbonic anhydrase inhibitor effects of 2-hydroxy acetophenone-N-methyl p-toluenesulfonylhydrazone and its Co(II), Pd(II), Pt(II) complexes

ÖZBEK N., Alyar S., Memmi B. K., BALABAN GÜNDÜZALP A., Bahceci Z., ALYAR H.

JOURNAL OF MOLECULAR STRUCTURE, vol.1127, pp.437-448, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 1127
  • Publication Date: 2017
  • Doi Number: 10.1016/j.molstruc.2016.07.122
  • Journal Name: JOURNAL OF MOLECULAR STRUCTURE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.437-448
  • Keywords: Sulfonamides, B3LYP, Disc diffusion method, MICs, hCA II, Drosophila melanogaster, IN-VITRO ANTIBACTERIAL, SPECTROSCOPIC CHARACTERIZATION, COPPER(II) COMPLEXES, CHEMICAL-SHIFTS, SPECTRA, CU(II), PALLADIUM(II), NI(II), C-13, IX
  • Gazi University Affiliated: Yes

Abstract

2-Hydroxyacetophenone-N-methyl p-toluenesulfonylhydrazone (afptsmh) derived from p-toluenesulfonicacid-1-methylhydrazide (ptsmh) and its Co(II), Pd(II), Pt(II) complexes were synthesized for the first time. Synthesized compounds were characterized by spectroscopic methods (FT-IR, H-1-C-13 NMR, LC-MS, UV-vis), magnetic susceptibility and conductivity measurements. H-1 and C-13 shielding tensors for crystal structure of ligand were calculated with GIAO/DFT/B3LYP/6-311++G(d,p) methods in CDCl3. The vibrational band assignments were performed at B3LYP/6-311++G(d,p) theory level combined with scaled quantum mechanics force field (SQMFF) methodology. The antibacterial activities of synthesized compounds were studied against some Gram positive and Gram negative bacteria by using microdilution and disc diffusion methods. In vitro enzyme inhibitory effects of the compounds were measured by UV-vis spectrophotometer. The enzyme activities against human carbonic anhydrase II (hCA II) were evaluated as IC50 (the half maximal inhibitory concentration) values. It was found that afptsmh and its metal complexes have inhibitory effects on hCA II isoenzyme. General esterase activities were determined using alpha and beta naphtyl acetate substrates (alpha- and beta-NAs) of Drosophila melanogaster (D. melanogaster). Activity results show that afptsmh does not strongly affect the bacteria strains and also shows poor inhibitory activity against hCAII isoenzyme whereas all complexes posses higher biological activities. (C) 2016 Published by Elsevier B.V.