The aggregation and reaction with oxygen of the tetrasodium salt of cobalt phthalocyanine-4,4',4'',4'''-tetrasulphonic acid

作者：L. Clem GRUEN, RJ Blagrove · 发表于：Australian Journal of Chemistry · 年份：1973 · DOI：10.1071/ch9730319 · 被引用次数：78 · 研究领域：Porphyrin and Phthalocyanine Chemistry、Molecular Sensors and Ion Detection、Photochemistry and Electron Transfer Studies

The reversible addition of molecular oxygen to the tetrasodium salt of cobalt phthalocyanine-4,4?,4?,4??-tetrasulphonic acid in aqueous solution has been confirmed. Visible absorption spectra of the monomeric and dimeric species and of the oxygen adduct have been determined. A monomer-dimer system prevails at neutral pH, low ionic strength, and low dye concentrations. The oxygen adduct and the dimeric form of the dye predominate in alkaline solution.