Effect of Organic Compounds and Salts on the Tris(2,2"-Bipyridyl)Ruthenium(II)-Photosensitized Substitution of the Sulfo Group for Halogen in Halogenated Naphthalenes in Aqueous Solutions

The effect of the addition of organic compounds and salts on the occurrence of the chain radical-ion reaction of replacement of halogen by sulfo group in halogenated hydroxynaphthalenes in a sodium sulfite aqueous solution, which was photosensitized by a tris(2,2"-bipyridyl)ruthenium(II) complex, was studied. It was shown that both organic compounds and salts in small concentrations increase the quantum yield of the substitution reaction. The kinetic scheme of the reaction is discussed.