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Abstract The two Schiff base ligands, H3L1 (02NO) and H2L2 (02N), were prepared by the condensation of o acetoacetylphenol with either ethanolamine or ethylamine, respectively, in the molar ratio 1:1. Both ligands contain a ketonic group, an imine group of the Schiff base linkage 1 besides a phenolic group. In addition, ligand H3L contained a tennenal alcoholic group. The reactions of the two ligands with Cu(ll), Ni(II), Co(II), Mn(II), VO(IV), U02(VI), Fe(III) and Cr(III) ions yielded solid complexes. LiOH was added in some reactions, as a deprotonating agent The ligand H3L1 behaved as bi-, ter-, or tetradentate and either as a morio-, or dianionic and yielded either mono-, bi-, tri-, or tetranuclear 2 metal· complexes. The ligand H2L behaved as bi-, or terdentate and either as a mono- or dianionic and yielded either mono- or binuclear metal complexes. The complexes attained different geometrical structures, e.g. Cu(II) complexes are square-planar; Ni(II), Co(II), Mn(II); Fe(III) and Cr(III) complexes are octahedral; U02(VI) complexes are pentagonal bipyramid and VO(IV) is square pyramid. Iron (III) complexes contain two chlorine bridges between the two Fe (III) ions coordinated to the outer sites of two ligand molecules. chromium complex of ligand H2L2 contained two hydroxo bridges between the two Cr(III) ions coordinated to the available sites of two ligand molecules. |