Abstract
A new unsymmetrical photochromic diarylethene compound, [1-(2-methyl-5-(3-fluorophenyl)-3-thienyl), 2-(2-methyl-3-benzothienyl)]perfluorocyclopentene (1o), was synthesized and its photochemical properties, such as photochromism and fluorescence in solution as well as in PMMA amorphous film were investigated in detail. The results showed that the compound exhibited remarkable photochromism, changing from colorless to violet after irradiation with 297 nm UV light both in solution and in PMMA film. Finally, using this dithienylethene as recording medium, polarization optical recording was carried out successfully.
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