Synthesis, characterization and cytotoxic properties of bismuth(III) chloride complexes with heterocyclic thioamides

S. Yarar, I. I. Ozturk, C. N. Banti, N. Panagiotou, C. Papatriantafyllopoulou, M. Manoli, M. J. Manos, A. J. Tasiopoulos, S. K. Hadjikakou

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23 Citations (Scopus)

Abstract

Bismuth(III) complexes of the formulae [BiCl3(MBZT)2] ·H2O} (1), {[BiCl22-Cl)(MMI)2]2·(CH3)2CO} (2), {[BiCl32-S-PYT)(PYT)]2} (3) {([BiCl2(MBZIM)4]+)·2(Cl-)·(H3O+) ·2H2O} (4) and [BiCl3(tHPMT)3] (5) (where MBZT: 2-mercaptobenzothiazole, MMI: 2-mercapto-1-methylimidazole, PYT: 2-mercaptopyridine, MBZIM: 2-mercaptobenzimidazole, tHPMT: 2-mercapto-3,4,5,6-tetrahydro-pyrimidine) are reported. The compounds were characterized by spectroscopic techniques including FT-IR, FT-Raman, UV-Vis, 1H-,13C-NMR spectroscopies, TG-DTA, e.a, molar conductivity and by single-crystal X-ray diffraction analysis. While 1, 4 and 5 are mononuclear compounds, 2 and 3 are dinuclear complexes in which the two Bi3+ ions are bridged through Cl- and SR groups respectively. Interestingly, 3 is the first example of dinuclear Bi3+ complex containing two Bi-(μ-SR)-Bi bridges between the two metal centers formed by covalent bonds. Compounds 1–5 were evaluated for their in vitro cytotoxic activity against human adenocarcinoma cervix (HeLa) and breast (MCF-7) cells. The toxicity of 1–5 was evaluated on normal human fetal lung fibroblast cells (MRC-5). The influence of 1–5, on the catalytic peroxidation of the linoleic acid by the enzyme lipoxygenase (LOX) was determined experimentally.

Original languageEnglish
Pages (from-to)23-33
Number of pages11
JournalInorganica Chimica Acta
Volume471
DOIs
Publication statusPublished - 24 Feb 2018
Externally publishedYes

Keywords

  • Biological Inorganic Chemistry
  • Bismuth(III) chloride
  • Cell studies
  • Drug design
  • Lipoxygenase inhibition

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