Fig. 2

Estimation of pKa of radical cation [1a]•+. a Acid–base equilibria between [1a]•+ and substituted anilines. b Linear free energy plot for the acid–base equilibria

Estimation of pKa of radical cation [1a]•+. a Acid–base equilibria between [1a]•+ and substituted anilines. b Linear free energy plot for the acid–base equilibria