Studies on Mononuclear Chelates Derived from Substituted Schiff Base Ligands (Part 4): Synthesis and Characterization of a New 5-Hydroxysalicyliden-P-Aminoacetophenoneoxime and Its Complexes with Co(II), Ni(II), Cu(II) and Zn(II)


Abstract: 5-Hydroxysalicyliden-p-aminoacetophenoneoxime (LH) was synthesized starting from p-aminoacetophenoneoxime and 5-hydroxysalicylaldehyde. Complexes of this ligand with Co^{+2}, Ni^{+2}, Cu^{+2} and Zn^{+2} salts were prepared. With this ligand, complexes were synthesized using Co^{+2}, Ni^{+2}, Cu^{+2} and Zn^{+2} salt with a metal:ligand ratio of 1:2. Their structures were elucidated on the basis of elemental analyses, IR, ^1H- and ^{13}C-NMR, electronic spectra, magnetic susceptibility measurements, molar conductivity and thermogravimetric analyses.

Keywords: Schiff bases, transition metal complexes, oxim

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