Kinetics and mechanism of the oxidation of dithiocarbamic acids in the presence of Co(II) phthalocyaninetetacarboxylic acid

Abstract

Present work contains kinetic data of oxidation of sodium diethyldithiocarbamate in presence of phthalocyanine catalysts. It is shown that nature of peripheral substituent has a great influence on self-association of phthalocyanines and on its catalytic activity. Oxidation mechanism of sodium diethyldithiocarbamate involving formation of triple complex of substrate, reduced form of catalyst and oxygen is offered. It is also shown that oxidation mechanism of dithiocarbamic acids is different than for cysteine.

Keywords

• Co(II)phthalocyanines
• Catalysts
• Oxidation
• Kinetics
• Mechanism