Abstract
The complexes derived the reactions of 1-(2-hydroxybenzoyl)-4-phenylthiosemicarbazide (L-1) with MX2 (M = Co-II, Cu-II and Zn-II ions; X = Cl- in case of Co-II and Cu-II ions, Cl- and Ac- in case of Zn-II) in EtOH, were synthesized and characterized. The results suggested that the complexes have the general formulae, [Cu(L-1-2H)(EtOH)(H2O)(2)]center dot H2O, [Co(L-1-2H)(EtOH)(H2O)]center dot 2H(2)O and [Zn(L-1-2H)(EtOH)]. Also, the ternary complexes, derived from the reactions 2,2'-dipyridyl (L-2) with the metals salts followed by adding a solution of the L-1 were synthesized and having the general formulae, [Cu-2(L-2)(L-1-2H)(H2O)(OH)(2)]center dot 1/2H(2)O, [Co(L-2)(L-1-2H)]center dot 1.5EtOH center dot 3H(2)O and [Zn(L-2)(L-1-2H)]center dot EtOH. The binary and ternary complexes were characterized by elemental analyses, molar conductivities, spectral (IR, UV-Vis, H-1-NMR and mass), thermal and magnetic measurements. The existence of OH group in the ternary complexes was confirmed by IR spectra. The amounts of solvent were determined from the results of TGA. The biological activity for the ligand and two complexes were tested against DNA. (C) 2014 Elsevier B.V. All rights reserved.