Synthesis and properties of 1-(2-methyl-5-dioxolane)-1-thienyl-2-(2-methyl)-5-(4-methoxy)phenyl-3- thienylperfluorocyclopentene

摘要

An unsymmetrical photochromic diarylethene which called 1-[(2-methyl-5-dioxolane)-3-thienyl]-2-[(2-methyl)-5-(4-methoxyphenyl)-3-thienyl]perfluorocyclo-pentene was synthesized and its photochromic properties were examined in detail. The result demonstrate that the diarylethene changed the color from colorless to blue violt upon irradiation with 297 nm UV light, in which absorption maxima were observed at 552 nm and 563 nm in hexane and PMMA films, respectively. This photochromic compound also exhibited remarkable fluorescence switching both in hexane solution and in PMMA films.