Molecular modeling, spectral, and biological studies of 4-formylpyridine-4N-(2-pyridyl) thiosemicarbazone (HFPTS) and its Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Cd(II), Hg(II), and UO2(II) complexes

• Published in: Journal of thermal analysis and calorimetry 2014, Vol.115 (3), p.2357-2367
• Main Authors: El Metwally, Nashwa M., Arafa, Reem, El-Ayaan, Usama
• Format: Article
• Language: English
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Measurement Science and Instrumentation; Physical Chemistry; Polymer Sciences
• ISSN: 1388-6150; 1588-2926
• DOI: 10.1007/s10973-013-3065-8

The present work describes the preparation and characterization of some metal ion complexes derived from 4-formylpyridine- 4 N -(2-pyridyl)thiosemicarbazone (HFPTS). The complexes have the formula; [Cd(HFPTS) 2 H 2 O]Cl 2 , [CoCl 2 (HPTS)]·H 2 O, [Cu 2 Cl 4 (HPTS)]·H 2 O, [Fe (HPTS) 2 Cl 2 ]Cl·3H 2 O, [Hg(HPTS)Cl 2 ]·4H 2 O, [Mn(HPTS)Cl 2 ]·5H 2 O, [Ni(HPTS)Cl 2 ]·2H 2 O, [UO 2 (FPTS) 2 (H 2 O)]·3H 2 O. The complexes were characterized by elemental analysis, spectral (IR, 1 H-NMR and UV–Vis), thermal and magnetic moment measurements. The neutral bidentate coordination mode is major for the most investigated complexes. A mononegative bidentate for UO 2 (II), and neutral tridentate for Cu(II). The tetrahedral arrangement is proposed for most investigated complexes. The biological investigation displays the toxic activity of Hg(II) and UO 2 (II) complexes, whereas the ligand displays the lowest inhibition activity toward the most investigated microorganisms.