Abstract
A novel unsymmetrical diarylethene derivative 1-[2,4-dimethyl- isoxazol-3-yl]-2-[2-methyl-5-(2-(1,3-dioxolane))-3-thienyl] perfluorocyclopentene (1a) was synthesized successfully. The properties of the compound, including photochromic and fluorescence properties of the diarylethene were investigated systematically. The color of diarylethene 1a changed from colorless to pink upon irradiation with 297 nm UV light, in which absorption maxima were observed at 496 nm in hexane and at 510 nm in PMMA film, respectively. In hexane solution, compound 1 showed good fluorescence switching characters with 305 nm light excited.
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