الفهرس 
RESULTS AND DISCUSSIONOnly 14 pages are availabe for public view
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Abstract
Nine new complexes [UO2(HNTA)(H2O)].3H2O, Na[UO2(NTA)].H2O, [ZrO(HNTA)(H2O)].3H2O, Na[ZrO(NTA)].H2O, [Ce(NTA)(H2O)2], [Ce(NTA)(OH)(H2O)].H2O, Na[Ce(NTA)(H2O)2].SO4.2H2O, [Ni(HNTA)-(H2O)] and Na[Ni(NTA)].4H2O were obtained during the reactions of UO22+, ZrO2+,Ce3+, Ce4+, and Ni2+ ions with nitrilotriacetic acid in water and NaOH aqueous solution. The infrared spectra of the solid complexes have been obtained and assigned on the basses of Cs symmetry. Thermogravimetic (TG) and differential thermal analysis (DTA) were also carried out. The data obtained agree quite well with the proposed structures and show that the complexes finally decompose to form oxides.
Nitrilotriacetic acid in three complexes which contain (HNTA) behaves as a tridentate ligands through two oxygen atoms of two carboxylate groups and a nitrogen atom but in which contain (NTA) acts as a tetradentate ligand and coordinates to metal ions through three oxygen atoms of the three carboxylate groups and a nitrogen atom.
Finally, In uranyl and cerium complexes are octahedral geometry structures but in zirconyl complexes are a square pyramidal structures and in nickel complexes are forming a square planer sphere around the nickel central atom.