title: Preparation of Zinc (II) and cadmium (II) complexes of the tetradentate Schiff base ligand 2-((E)-(2-(2-(pyridine-2-yl)- ethylthio)ethylimino)methyl)-4-bromophenol (PytBrsalH).
abstract: We describe the synthesis and characterization of two new zinc (II) and cadmium (II) complexes of the tetradentate dissymmetric Schiff base ligand 2-((E)-(2-(2-(pyridine-2-yl)ethylthio)ethylimino)methyl)-4-bromophenol (PytBrsalH), prepared from 1-(2-pyridyl)-3-thia-5-aminopentane (pyta) and 5-bromosalicylaldehyde. The complexes were synthesized by treating an ethanolic solution of the ligand with equimolar amounts of appropriate metal salts in 1 M methanolic solution of NaOH or alternatively, by a more direct route in which the two reactants are added to a solution of the ligand immediately after formation of the latter and prior to any isolation. The complexes were characterized by elemental analysis, FTIR, (1)H-NMR, electronic spectra and molar conductivity. According to obtained data, the probable coordination geometries of zinc and cadmium in these complexes with mixed N, S and O donor atoms are tetrahedral- and octahedral-like,respectively. Both complexes were found to be 1:1 electrolyte systems in acetonitrile.
authors.affiliation: Department of Chemistry, Payame Noor University (PNU), Khoy, Iran. saghatforoush@yahoo.com
authors.forename: Lotf A
authors.initials: LA
authors.lastname: Saghatforoush
authors.forename: Ali
authors.initials: A
authors.lastname: Aminkhani
authors.forename: Sohrab
authors.initials: S
authors.lastname: Ershad
authors.forename: Ghasem
authors.initials: G
authors.lastname: Karimnezhad
authors.forename: Shahriar
authors.initials: S
authors.lastname: Ghammamy
authors.forename: Roya
authors.initials: R
authors.lastname: Kabiri
mesh_terms: D002104:Cadmium / Q000737:chemistry*; D008024:Ligands; D010636:Phenols / Q000138:chemical synthesis* / Q000737:chemistry; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry; D012545:Schiff Bases / Q000138:chemical synthesis* / Q000737:chemistry*; D013057:Spectrum Analysis; D015032:Zinc / Q000737:chemistry*
chemical_list: C529842:2-((E)-(2-(2-(pyridine-2-yl)- ethylthio)ethylimino)methyl)-4-bromophenol; D008024:Ligands; D010636:Phenols; D011725:Pyridines; D012545:Schiff Bases; D002104:Cadmium; D015032:Zinc