Abstract
Palladium(II) chloride and dioxouranium(VI) acetate complexes of some Schiff bases derived from 4-aminoantipyrine and certain carbonyl compounds such as salicylaldehyde (HL 1), 2-hydroxy-1-naphthaldehyde (HL 2), 2,4-dihydroxybenzaldehyde (HL 3) and acetylacetone (HL 4) have been prepared and characterized. Spectroscopic and other analytical studies reveal that the Schiff bases react with the metal ion as monobasic tridentates in the enolimine form, except HL 3 and HL 4 ligands coordinate with Pd(II) in the ketoenamine form as neutral tridentate and neutral bidentate respectively. IR spectra and conductance measurements of some metal complexes show the presence of coordinated chloride ion and acetate group. The IR spectra also reveal that the Pd(II) complex of ligand HL 4 has a square planar cis- configuration.
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