Abstrait

Spectroscopic and structural studies of some transition metal complexes of a synthetic ligands derived from 4-acetylpyridine

Moamen S.Refat, Ibrahim M.El-Deen, Hassan K.Ibrahim, Jehan A.Hasanen

Co(II), Ni(II) and Cu(II) complexes with novel heterocyclic ligands derived from4-acetylpyridine with thiosemicarbazide were synthesized and characterized by elemental analysis, molar conductivity, spectral methods (mid infrared, 1H-NMR, mass and UV/vis spectra) and simultaneous thermal analysis (TG andDTG) techniques. Themolar conductance measurements proved that all complexes are electrolytes comparedwith their ligands. The IR spectra of the two ligands and their complexes are used to identify the type of bonding. The kinetic thermodynamic parameters such as: E*, H*, S* and G* are estimated from the DTG curves. The free ligands and their complexes have been studied for their possible biological activity (antibacterial and antifungal).