Synthesis and Properties of [1-(3,5-dimethyl-4-iodoisoxazole)-2-(2-methyl-(5-ethynyl)trimethylsilane-3-thienyl)perfluorocyclopentene
A photochromic diarylethene of [1-(3,5-dimethyl-4-iodoisoxazole)-2-(2-methyl-(5-ethynyl) trimethylsilane-3-thienyl) perfluorocyclopentene (1o) was synthesized and characterized. Its properties, including photochromic behavior and fluorescent properties have been investigated. Upon irradiation with UV light with the extended response time, the diarylethene underwent a ring opening reaction to produce closed forms and color change in solution. The results showed the compound exhibited good photochromism in acetonitrile solution. The kinetic experiments showed that the cyclization and cycloreversion processes were zeroth and first order reaction, respectively. Moreover, diarylethene1oalso exhibited obviously fluorescence switches along with the photochromism.