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Abstract The master thesis include aim of the work and three main chapters I- Aim of the work The work aimed to prepare and characterize new propane hydrazide ligand and its metal complexes aiming to study their effects in the treatment of tumor diseases. II- Introduction This chapter includes an overview of previous researches for complexes of hydrazide ligands and their application. III-Experimental This chapter contains the used chemical and instruments in Practical part of thesis as follow: 1) Preparation of propane hydrazide ligand and its metal complexes. 2) characterization of the ligand and its complexes using: The ligand, (H3L) was prepared by dropwise addition 2- aminopropanoic ester (20.0 g, 0.13 mol) dissolved in 30 cm3 of ethanol to hydrazine (29.0 g, 0.26 mol) dissolved in 20 cm3 of ethanol solution . The mixture was refluxed with stirring for 2 hours and then left to cool at room temperature .filtered off the formed precipitate and leave it to dry at room temperature. The ethanolic solution of the product (24.0g, 0.08 mol ) was added 3-acetyl-2-hydroxy-6-methyl-4H-pyran-4-one (22.9g, 0.17 mol) (1:2) dissolved in 30 cm3 ethanol . The mixture was stirred and refluxed for another three hours at 80 0C, then left to cool at room temperature. The solid product was filtered off, then dried under vacuum over anhydrous CaCl2 to give the ligand. (E)-N’-(1(6methyl2,4dioxo3,4-dihydro-2H-pyran-3yl)ethylidene)2((E) (1(6methyl2,4dioxo3,4dihydro2Hpyranyl)ethylidene)amino) propane hydrazide The reaction of the ligand (H3L) with Cu(II), Ni(II), Co(II), Zn(II) ,Ba (II) and Mn(II) complexes have been synthesized and characterized by (1H-NMR, mass, IR, UV-VIS, ESR) spectroscopy, (magnetic moments, conductance) measurements, (elemental and thermal) analysis. The IR spectral data show that, the Schiff base behaves as a neutral tetra dentate ligand bonded to the metal ions through the azomethine nitrogen atom and Sulphur atom in thiocarbonyl group which protonated or deprotonated form adopting either octahedral or tetragonally distorted octahedral geometries. Molar conductance in DMF solution indicates that, the complexes are non-electrolytes. The ESR spectra of solid Cu (II) complexes (4,13, &19) show an axial type indicating a d(X2-y2) or d (Z2) ground state with a significant covalent bond character. However, Co (II) complex (17) show isotropic type indicating an octahedral geometry. Cytotoxic evolution of the ligand and its complexes have been carried out. Complexes show enhanced activity in comparison to the parent ligand. Metal complexes (4),(5),(6),(7),(17) and (19) were evaluated against MCF-7 cell line showed better chemotherapeutic effect against MCF-7 cell line than the standard drug used. Also, the Co (II) complex (17) shows the highest potency of inhibition at 250 µg/ml against MCF-7 |