Spectra, Ionization Constants, and Rates of Oxidation of 1,4-Dimercaptobenzene and Properties of the p-Mercaptophenylthiyl and p-Benzodithiyl Anion Radicals

Article abstract of DOI:10.1021/j100123a025

In basic solution, p-dimercaptobenzene, which is found to have pK_a's of 6.0 and 7.7, is rapidly oxidized by azide radical (k = 7.4*10⁹ M^-1 s^-1) to p-benzodithiyl radical anion, the sulfur analog of p-benzosemiqu