د.منى عباس هادي السلامي

NEW Azo-Schiff base derivative (3,4-bis(((1E,2E)-2-((2-((4-((Z)-(3-hydroxyphenyl) diazenyl)naphthalen-1-yl)amino)ethyl)imino)-1,2-diphenylethylidene)amino)phenyl)(phenyl)methanone (HANPH) and its metal complexes which include Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Pt(II), and Au(III) metal ions were synthesized. The structure of these compounds has been investigated by using elemental analysis, FT-IR, UV-Vis spectrometric methods, 1H-NMR, mass spectra, atomic absorption, molar conductivity and magnetic susceptibility of metal complexes. The spectroscopic data of the complexes suggest that their (1:1) (metal: ligand) is mole ratio. Also, the analytical studies for all new complexes have shown octahedral geometries, except for Pt (II) and Au (III) complexes which suggested square planar geometries also its conductivity measurements show electrical properties. These complexes show high conductance value supporting (1:1) electrolytic nature. Furthermore, the FTIR results show that the coordination site from the ligand to the metal ions were through the nitrogen of azomethine

The complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Pt(II), and Au(III) were prepared from the complexation reaction between the new Azo -Schiff base ligand and Selected Metal Ions. This ligand(3,4-bis(((1E)-1-(2-((2,4-dihydroxy-6-methylphenyl) diazenyl) phenyl) ethylidene) amino) phenyl) (phenyl) methanone) was derived from the condensation reaction of 3,4-diamino benzophenone, 2-amino acetophenone, and 3,5-dihydroxy toluene. The ligand was characterized by C.H.N elemental analysis, Uv-Vis, FT-IR, 1H-NMR, and mass spectra studies, its complexes characterized by C.H.N elemental analysis, Uv-Vis, FT-IR, mass of Ni(II) complex and 1H-NMR of Zn(II) complex , molar conductivity, Atomic absorption, magnetic moment measurements. The results of this studies show the coordination sites for the ligand with the metal ion were to be through oxygen of the hydroxyl group, and the nitrogen of azomethine group and the nitrogen of azo group. The electronic spectral and magnetic measurement data predict octahedral structure of the complexes, except for Pt(II) and Au(III) complexes were suggested a square planar geometry. All complexes show that non electrolytes properties and no conductive

A new series of Co(II), Ni(II), Cu(II) and Zn(II) metal complexes of ligand 4-((E)-((6Z,13E,16Z)-14-methyl-6,7-diphenyl-16-(phenyl amino)-8,15-dihydro-5H- dibenzo[b,h][1,4,7,10]tetraazacylo tridecin-15-yl)diazenyl)-N-(pyrimidin-2-yl)benzene sulfonamide were synthesis, characterized and structural of Co(II), Ni(II), Cu(II), and Zn(II) complexes with tetra dentate ligand. The new tetra azo methane macro cyclic ligand derived from sulphadiazine, acetoacetanilide, o-phenylene diamine and benzil with Monomeric complexes with the general formula [M(L)]Cl2 Where M= Co(II), Ni (II), Cu (II), and Zn(II), are reported. The Structures of new ligand , mode of bonding and over all geometry of the complexes were determined through FTIR, UV-Vis, and 1HNMR spectral studies, magnetic moment measurement, elemental analysis, metal content, and molar conductance. These studies revealed square planar geometries for all complexes. Complex formation studies via molar ratio and continuous variation methods were consisted to those found in the solid complexes with a ratio of ( M:L) as (1:1). Stability constant of complexes were calculated by spectro photometricaly. spectral data showed that the ligand behaves a tetra dentate molecular with (N4) donor

The New Schiff base ligand 4,4'-[(1,1'-Biphenyl)-4,4'-diyl,bis-(azo)-bis-[2-Salicylidene thiosemicarbazide](HL) and its complexes with Co(II), Ni(II), and Cu(II) have been preparation and characterized by elemental analysis, electronic, FTIR magnetic Susceptibility measurements from analysical and spectral data, the stiochiometry of the complexes has been found to be 1:1 (metal: ligand). FTIR spectral data suggest that the ligand behaves as monobasic tridentate molecule with (N, S, O) donor sequence towards metal ions. The analysis data suggest octahedral geometry for Co(II), Ni(II), and Cu(II) complexes and expected for non electrolyte.

Tridentate Schiff base ligand (4-DMIAB) of complexes: cobalt(II), nickel(II), copper(II), zinc(II), cadmium(II), and mercury(II) ions have been prepared by the condensation of 4-Ominoantipyrine, isatin, and 4-amino benzoic acid. The complexes and ligand were characterized by UV-visible, FTIR, elemental analysis, magnetic susceptibility, and molar conductance measurements. It has been found that the Schiff base ligand behaves as neutral tridentate (N,N’,O) forming chelates with (1:2) (metal: ligand) stoichiometry. Octahedral environment is suggested for all metal complexes.

Abstract: Six metal complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II), with new Schiff base (L) derived from isatin, benzil and O-pheylene diamine were prepared and characterized. The structural features were arrived from their elemental analyses, magnetic susceptibility, molar conductance, Infrared, Uv-Vis and H1NMR spectral studies. The data show that the complexes have composition of [ML]Cl2, and [MLCl2] type (1:1) (metal:ligand) stoichiometry for the isolated complexes. The ligand behave as neutral tetradentate N2O2. The Uv-Vis, magnetic susceptibility spectral data and molar conductance of the complexes suggest square-planar geometry for Co(II), Ni(II) complexes and octahedral geometry for Cu(II), Zn(II), Cd(II),and Hg(II) complexes

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