Metal complexes of schiff base ligands derived from 4-hydroxy2-(1H)quinolone and ethylenediamine or 1,2-propylenediamine: Part II

830-836New schiff base ligands derived from 4-hydroxy-2-(1H)quinolone and ethylenediamine or 1, 2-propylenediamine have been prepared and reacted with metal salts to get mononuclear and dinuclear complexes. The ligands behave either as tetradentate dibasic or as bidentate mono- or di-basic ligands. A variety of structures are indicated for the products by their visible and IR spectra, and magnetic measurements. Different products are obtained in similar reactions of the two ligands with the same metal salts which is attributed to the effect of the extra methyl group in the latter ligand. Also, different complexes are obtained for the same ligand and the same metal salt using different solvent media. Besides, the variation of the counter anion of the metal salt also leads to different products