Studies in stability constants of schiff base hydrazone complexes with transition metal ions. Effect of ligand on seed germination

Resumo

Spectrophotometric investigation of Cu (II), Ni(II), Co(II), and Fe(III) complexes with 2,4-dihydroxyacetophonone 2,4-dichlorobenzoylhydrazone (H₂L¹) and 2,4-didydroxy-5-nitroacetophenone 2,4-dichlorobenzoylhydrazone (H₂L²) shows 1: 1 and 1: 2 complex formation between the pH range of 3.0 to 6.0 and also studied by jobs variation method at 0.1 M ionic strength at 30 ± 1°C specrtophotometrically. The conditional stability constants are determined for 1: 1 complexes. Effect of H₂L¹ and H₂L² ligand and its complexes on seed germination is studied.