Photochromism of a diarylethene charge-transfer complex: photochemical control of intermolecular charge-transfer interaction

Abstract

A diarylethene derivative bearing a phenylenediamine group formed radical ions with an electron acceptor molecule in solution, and the concentration of the radical ions was modulated by the photochromic reaction of the diarylethene, reflecting the difference in the electron-donating character between the open- and closed-ring isomers.