Catalytically Active Systems of Cobalt Complexes with Wa-ter-Soluble Phthalocyanines

Abstract

The work reports catalytic properties of series of cobalt phthalocyanines peripherally substituted with consistently changing sulfonated fragments. Data on heterogenization of cobalt phthalocyaninates onto organic and inorganic polymers are provided. Comparing catalytic activity of the macrocycles in dependence on structure and peripheral substituent as well as polymer carrier's type is given. Application of cobalt phthalocyanine's sulfonic acids for fine synthesis of thiuram E upon both homogeneous and heterogeneous catalysis is shown to be prospective.

Electrochemical Deposition of Aggregated Cobalt Sulfophthalocyanines at Gold Surfaces in Alkaline Solutions

“…These observations correlate with the fact that compared to other complexes, CoPcIII has the lowest stability of dimeric associates in water. [37] Useful information involving electrochemical mechanism generally can be acquired from the relationship between peak current and scan rate. Scan rate studies were carried out to assess whether the process on gold electrode was under diffusion or adsorption controlled.…”

“…The study of the behaviour of macroheterocyclic complexes in aqueous alkaline solutions is required to solve a number of practical problems to improve existing and create new generation current sources. In our previous works, [36,37] we have briefly summarized the catalytic properties for a number of sulfonated derivatives of cobalt phthalocyanines, which have peripheral substituents regularly varying in structure. Sulfonic acid fragments being part of phthalocyanine macrocycle impart solubility in aqueous and aqueous-alkali media within a broad range of concentrations, that is positive in terms of catalytic application.…”