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In this work, the reaction between Fe(II) Schiff base complexes and H2O2 was carried out in aqueous, co-organic media and in the presence of added salts. Moreover the activation parameters were calculated and discussed. The Kinetic measurements confirmed the pseudo 1st - order rate dependence in both [complex] and [H2O2]. The suggested mechanism was involved the attack of hydroperoxo ion (HOO-) on the electrophilic carbon azomethine to form the intraperoxo - complex intermediate via which the oxidation reaction of Fe(II) to Fe(III) is catalyzed in slow steps. There is an enhancement of the...

This work deals with the preparation, characterization and kinetic studies on base hydrolysis of some Fe(II) Schiff base amino acid complexes.The prepared complexes were found to be of 1:2 or 1:1 stoichiometry and non - electrolytic character, solubility measurements of these complexes showed them as hydrophobic in nature. The base hydrolysis reaction of the prepared complexes was carried out in aqueous, co-organic media and in the presence of added salts. The kinetic measurements confirmed the pseudo 1st - order rate dependence in [complex] and 2nd - order in [OH-]. A relevant mechanism was...

Coumarins have attracted intense interest in recent years because of their diverse pharmacological properties. Among these properties, their cytotoxic effects were most extensively examined, their broad range of effects on the tumors as shown by various in vitro and in vivo experiments. Coumarins have important effects in plant biochemistry and physiology, acting as antioxidants, enzyme inhibitors. In addition, these compounds are involved in the actions of plant growth hormones, growth regulators, the control of respiration and photosynthesis. Coumarin derivatives have also found...