Catalytic activities of Schiff base transition metal complexes

In the present contribution, some novel Cu(II) complexes were synthesized from tri- and tetradentate imine ligands. All the prepared compounds were elucidated by different physicochemical methods. Density Functional Theory calculations were carried out to explain the equilibrium geometry of the bsisnph and npisnph ligands and their Cu(II) complexes. Interaction of the synthesized ligands with Cu(II) affords nano-sized particles via TEM. The catalytic potentials of the prepared complexes has been tested within the oxidation of benzyl alcohol using an environmental friendly terminal oxidant, i.e. H2O2. The effect of various parameters, e.g. solvents, temperature and amount of catalyst was investigated. A mechanistic pathway of the catalytic oxidation was tentatively described and discussed.

Some New Nano-sized Mononuclear Cu(II) Schiff Base Complexes: Design, Characterization, Molecular Modeling and Catalytic Potentials in Benzyl Alcohol Oxidation

The bis-Schiff-base of N2O2 donor dibasic ligand, H2L, is synthesized by the reaction of 4,6-diacetylresorcinol with ethylamine in molar 1 : 2 ratio. The ligand is characterized using IR, UV-Vis, 1H NMR and mass spectroscopy. The 1H NMR spectrum of the ligand shows the presence of phenolic coordinating groups. Several new mixed ligand complexes of the Schiff-base ligand (H2L) and (L′) where (L′) = deprotonated 8-hydroxyquinoline (8-HQ), 2,2′-bipyridine (2,2′-Biby) and 1,10-phenanthroline (1,10-Phen) with different metal ions such as Co(II), Ni(II), Cu(II) and UO2(VI) are synthesized. Elemental analyses, infrared, ultraviolet-visible, electron spin resonance and thermal analysis, as well as conductivity and magnetic susceptibility measurements, are used to elucidate the structures of the newly prepared metal complexes. The complexes are isolated as binuclear and confirmed by ESR spectra. Thermal degradation studies for some complexes show that the final product is the metal oxide. In addition, thermal grav...

Synthesis and spectroscopic studies on ternary bis-Schiff-base complexes having oxygen and/or nitrogen donors

Synthesis, characterization and antifungal activity of a series of manganese(II) and copper(II) complexes with ligands derived from reduced N,N'-O-phenylenebis(salicylideneimine).

Synthesis and characterization of Co(II), Ni(II), Cu(II) and Zn(II) complexes of tridentate Schiff base derived from vanillin and dl-α-aminobutyric acid

Z.H.Abd El-Wahab

Papers

Co(II), Ce(III) and UO2(VI) bis-salicylatothiosemicarbazide complexes: Binary and ternary complexes, thermal studies and antimicrobial activity

Derivatives of phosphate Schiff base transition metal complexes: synthesis, studies and biological activity.