Fig. 5: Mechanistic studies.
a Experiments and cyclic voltammograms of different propargylic compounds. b Stern-Volmer quenching experiments of fac-Ir(ppy)3. c Reaction with Ph-PTZ photocatalyst. d The radical trapping experiment with TEMPO. e Reaction with Ir(dtbbpy)(ppy)2PF6 or Ir[dF(CF3)ppy]2(dtbbpy)PF6 as photocatalyst.
