الفهرس | Only 14 pages are availabe for public view |
Abstract Schiff base compounds have received considerable attention in the last decade which plays a central role as chelating agents for a large numbers of metal ions, as they form a stable six-membered ring after complexation with a metal ion. The present study involves preparation of a novel series of transition metal complexes of Cu(II), Co(II), Ni(II), Mn(II), UO2(II) and Cd(II) acetate were synthesized from Schiff base of 4-[(2,4-dihydroxy-benzylidene)-amino]-1,5-dimethyl-2-phenyl-1,2-dihydroxo-pyrazol-3-one (H2L) Schiff base and their metal complexes have been synthesized and characterized by elemental analysis, mass spectroscopy, X-ray, IR, 1H NMR, electronic spectra, molar conductance magnetic susceptibility, thermogravimetric studies, DNA cleavage properties, alternating current conductivity (σac) and dielectric properties. Chapter 1, contains a literature survey includes the importance and structural chemistry of Schiff base compounds and their metal complexes. Chapter 2, involves materials used and the preparation of Schiff base of 4-[(2,4-dihydroxy-benzylidene)-amino]-1,5-dimethyl-2-phenyl-1,2-dihydroxo-pyrazol-3-one (H2L) as well as their complexes of Cu(II), Co(II), Ni(II), Mn(II) UO2(II) and Cd(II) acetate in addition to analytical techniques. Chapters 3, 4 and 5 include on the results and discussion abstracted from this study. |