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S4 mono nuclear and thier complexes with some metal ions , synthesis and physical studies. | ||
| journal of kerbala university | ||
| Article 1, Volume 9, Issue 4, 2013, Pages 35-53 PDF (0 K) | ||
| Abstract | ||
| The tetradentate (S4) ligand have been synthesized through the refluxed of 2-amino-1,3,4- thiadiazole -5- thiol with dibromoethane in presence anhydrous sodium carbonate. The metal complexes of this ligand was curried out by the direct reaction of metal salts with ligand . The prepared complexes and ligand were characterized by FT - IR ,UV-Vis ,NMR , Mass Spectroscopies and C.H.N.S elementary analysis. In addition to the motor conductivity and magnetic successpitibilty. Stability constant and mole ratio was carried out of prepared complexes. The thermodynamic parameters ΔH , ΔG , ΔS were measured. The spectroscopic studies and magnetic moments measurements showed the octahedral geometry around the Co, Cu and tetrahedrul geometry around Nickel ion. | ||
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