The binuclear Schiff base complexes prepared by condensation 2,6-diaminopyridine and salicylaldehyde (LH) by using microwave and adding metal salts to ligand by same ratio. The Schiff base ligand was checked by infrared, electronic spectra and 1 HNMR spectroscopy and prepared complexes characterized by molar conductivity, infrared, electronic spectra and susceptibility measurements. The values of molar conductivities reveal that the complexes are non-electrolytes, from obtained data of electronic spectra and magnetic moment, an octahedral geometry was suggested, coordinated to the metal ions in a manner with N donor sites of imine groups, and oxygen of phenolic OH group.

A new coordination complexes and adducts of the general formulas [M(hpipdtc) 2 ] and [M(hpipdtc) 2 L n ] where M= Mn(II), Fe(II), Co (II), (hpipdtc)=4hydroxypiperidinedithiocarbamate, n=1 L= 1, 10phen, en, n=2 L=4-picoline, 3,5-luitidine, triphenylphosphine have been prepared and characterized by metal analyses, infrared, molar conductance measurements, electronic absorption spectra, and susceptibility measurements. Magnetic moments and electronic spectra, suggested tetrahedral geometry for complexes of the type [M(hpipdtc) 2 ] and an octahedral geometry for their base adducts.

A dithiocarbamate ligand; sodiumdiethanolaminedithiocarbamte Na(deadtc) is synthesized from the reaction of diethanolamine with cabondisulfide and sodium hydroxide.(phen)= 1,10-phenathroline. Addition of metal salts, gave complexes of the types: [M(deadtc) 2 phen], where M = Fe(II), Co(II), Ni(II) and Cu(II). [M(deadtc) 3 ] where M= Fe(III). The ligand (deadtc) behaves as a bidentate and coordinated to the metal ion centers either through the sulfur atom of its dithiocarbamate and or through the nitrogen atoms of the phenathroline. All the synthesized ligands and complexes are characterized by elemental analyses,

Piperidine is heterocyclic amine used as starting material for preparation piperidine dithiocarbamate (pipdtc).add the some transition metal salt of this ligand with ethylinediamine gave complexes of the types:[M(pipdtc) 2 en], [M(pipdtc) 3 ] when the ratio, (M: pipdtc:en,1:2:1), (M: pipdtc.1:3) respectively. The ligand dithiocarbamate (pipdtc) behaves as a bidentate and coordinated to the metal ion centers either through sulfur atoms and through nitrogen atoms of the ethylenediamine All the synthesized ligand and complexes are characterized by elemental analyses, conductivity, infrared, electronic spectra and susceptibility measurements and theoretical Calculations. From the obtained data octahedral geometry for the complexes have been suggested.

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