Solubilization of Crown-Substituted Magnesium Phthalocyaninates in Solutions of Salts of Bile Acids

• Published in: Protection of metals and physical chemistry of surfaces Vol. 54; no. 1; pp. 33 - 42
• Main Authors: Goldshleger, N. F., Kalashnikova, I. P., Gorbunova, Yu. G., Martynov, A. G., Baulin, V. E., Tsivadze, A. Yu
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 2018
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Corrosion and Coatings; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Materials Science; Metallic Materials; Molecular and Supramolecular Structures at the Interfaces; Tribology; phthalocyanines; surfactants; salts of bile acids; solubilization; sodium dodecylsulfate; crown ether; aggregation; supramolecular chemistry; absorption spectra
• ISSN: 2070-2051; 2070-206X
• DOI: 10.1134/S2070205118010082

Crown-containing Pc Mg[(B15C5O) 8 Pc], Mg[(B15C5O) 4 Pc], and Mg[(15C5) 4 Pc] are in the monomolecular state in solutions of synthetic anionic surfactants: sodium dodecylsulfate and sodium dodecylbenzenesulfonate. In micellar solutions of bile-acid salts, molecular organization of crown-substituted Pc with different methods of introduction of crown groups into the macrocycle and their different numbers changes their state from predominantly monomeric for Mg[(B15C5O) 8 Pc] in the presence of NaCl to the aggregated one in the case of Mg[(15C 5 ) 4 Pc)]. Magnesium phthalocyaninate with annulated (15-crown-5)-fragments, Mg[(15C 5 ) 4 Pc], is characterized by the highest sensitivity to the structure of the micelle-forming biocompatible surfactant.