Intra-ion-pair Electron Transfer Mechanism for Photolysis of Diphenyliodonium Salt Sensitized by 9,10-Dimethoxyanthracene-2-sulfonate Counteranion

Article abstract of DOI:10.1246/cl.1991.1869

Diphenyliodonium 9,10-dimethoxyanthracene-2-sulfonate is photochemically dissociated to give 9,10-dimethoxyanthracene-2-sulfonic acid.The dissociation is considered to proceed via an intra-ion-pair electron transfer from 9,10-dimethoxyanthracene moiety to iodonium moiety.The counteranion acts as both spectral sensitizer for diphenyliodonium ion and precursor for photo-acid generator.