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A novel unsymmetrical photochromic diarylethene 1-[3-methyl-2-thienyl] -2[2-ethyl-3-benzothiophene] perfluoroyclopentene(1a) was synthesized, its photochromic, fluorescent, electrochemical and optical storage properties were investigated. The compounds exhibited remarkable photochromism both in solution and in PMMA film. In hexane, the open-ring isomer of the diarylethene 1a exhibited relatively strong...
A new asymmetrical photochromic diarylethene 1-[2-methyl-5-(3-methylphenyl)-3-thienyl]-2[2-methyl-benzofuran-3yl]perfluorocyelopentene (1a) was synthesized and its phtochromic, fluorescence, kinetics and optical recording properties were investigated in detail. This compound exhibited remarkable photochromism, changing from colorless to violet after irradiation with 297 nm UV light both in solution...
A new unsymmetrical photochromic diarylethene bearing an isoxazole moiety was synthesized and its photochromic and fluorescent properties were also investigated. The compounds exhibited remarkable photochromism both in solution and in PMMA film. In PMMA film, the open-ring isomer of the diarylethene 1 exhibited relatively strong fluorescence at 405 nm when excited at 310 nm. The fluorescence intensity...
A new photochromic diarylethene bearing hexatomic ring aryls was synthesized efficiently. Its photochromic properties were examined, it underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and Vis light both in solution and in PMMA film. The fluorescence property of the photochromic diarylethene was also performed in hexane solution. The results indicated...
A new photochromic diarylethene compound 1-(2, 4-dimethyl-thiazole-5-yl)-2-[2-methyl-5-(2-trifluorophenyl)-3-thien yl]perfluorocyclopentene (1a) was synthesized and its photochromic properties, fluorescence switch and polarization optical recording were investigated in detail. The diarylethene 1a showed excellent photochromic properties upon UV or visible light irradiation, which changed the color...
A novel photochromic diarylethene, 1-(2-ethyl-3-benzothienyl)-2-(2-trifluoromethylphenyl)perfluorocyclopentene (1a), was synthesized and its photochromic and fluorescent properties were investigated. The compound underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light both in solution and in PMMA film. And the absorption maximum of compound...
A novel symmetrical photochromic diarylethene, 1,2-bis[2-methyl-5-(p-chlorophenyl)-3-thienyl]perfluorocyclop- entene (1a), has been synthesized. Its photochromic properties in solution and PMMA film were investigated. While, fluorescence properties in different solution have also been discussed. The results of the research demonstrated that it has shown good photochromic behavior and relatively strong...
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