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An unsymmetrical diarylethene derivative bearing both benzfuran and thiophene moieties, in which a Cyano group was substituted at the ortho-positions of the terminal phenyl ring,was synthesized. The results showed that this compound exhibited reversible photochromism, undergoing reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light both in solution...
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 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 unsymmetrical photochromic diarylethene compound, 1-[2-methyl-5-(3-thienyl)-3-thienyl]-2-[2-methyl-5-(4cyanophenyl)-3-thienyl]perfluorocyclopentene (1a), was synthesized and its photochemical properties, such as photochromism and kinetics in solution as well as in PMMA amorphous film, fluorescecne and optical strorage properties were investigated in detail. The results showed that the cyclization/cycloreversion...
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 new photochromic diarylethene, 1-(2-methyl-5-toluene-3-thienyl)-2-[2-methyl-5-(4-fluorophenyl)-3-thienyl]- perfluorocyclopentene (1a), was synthesized and its photochromic and fluorescent properties were investigated. Diarylethene 1a changed the color from colorless to blue upon irradiation with 313 nm UV light, in which absorption maxima were observed at 575 nm in hexane and at 584 nm in PMMA amorphous...
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