Synthesis and Application of 1,2-bis-[2-methyl-5-(3-pentyl)phenyl-3-thienyl]perfluorocyclopentene

Abstract

A photochromic diarylethene 1, 2-bis-[2-methyl-5-(3-pentyl) phenyl-3-thienyl] perfluorocyclopentene was synthesized and characterized. Its properties, such as photochromism and fluorescence were investigated systematically. Upon irradiation with UV light, it underwent a reversible transformation from the open-ring isomer to the closed-ring isomer. The kinetic experiments showed that the cyclization and cycloreversion processes were zeroth and first order reaction. This new photochromic system also exhibited fluorescence switching in hexane solution.