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Title: Synthesis and characterization of transition metal complexes containing oxime, amido and thioamido groups
Authors: El-Asmy, A A
Khalifa, M E
Hassanian, M M
Issue Date: Jan-2004
Publisher: NISCAIR-CSIR, India
Abstract: New transition metal complexes of α-oximinoaceto-o-anisidide- 4-phenylthiosemicarbazone(H3OAAT) have been prepared and their geometrics are assigned. All the investigated complexes are mononuclear except the Cu(II) ions which form binuclear complexes with the chloride and acetate salts. The ligand acts as binegative tridentate in the Co (II), Ni(II), Zn(II) and Pd (II) complexes, trinegative tridentate in the Fe(III) and Co(III) complexes and trinegative pentadentate manner in the Cu(II) complexes. The Cu(II) and Pd(II) complexes possess a squareplanar stereochemistry while Ni(II) complex has an octahedral structure.Co(II) salts form diamagnetic and paramagnetic complexes. The protonat ion constants of the ligand and the stability constants of its Co(II), Ni (II) and Cu(II) complexes are calculated pH-metrically. Moreover, H3OAAT has been applied for the determination of Ni (II), Co(II), Cu(III) and Pd(II) ions in the 0.1-3.5 ppm range.
Page(s): 92-97
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections: IJC-A Vol.43A(01) [January 2004]

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