Aggregation and Molecular Complexation of Bifunctionally Substituted Cobalt Phthalocyaninates in Aqueous Media

The association and extracoordination of water-soluble cobalt complexes with mono- and bifunctionally substituted phthalocyaninates in aqueous solutions with monodentate ligands, such as pyridine and piperidine, were considered. The ability of substituted cobalt phthalocyaninates to coordinate small organic molecules was related to the nature of their peripheral substituents. The type and stability constants of associates formed in aqueous media were determined.