Chemistry Letters

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

K Naitoh, T Yamaoka, A Umehara

Index: Naitoh, Kazuhiko; Yamaoka, Tsuguo; Umehara, Akira Chemistry Letters, 1991 , # 11 p. 1869 - 1872

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Citation Number: 13

Abstract

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.