Synthesis, Properties and Application in Optical Recording of a New Diarylethene Bearing an Isoxazole Unit

2011 ◽  
Vol 393-395 ◽  
pp. 389-392
Author(s):  
Hui Li ◽  
Shou Zhi Pu ◽  
Wei Jun Liu
Keyword(s):  
Visible Light ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Isomeric Compound ◽  
Photostationary State ◽  
Fluorescence Switch ◽  
Synthesis Properties ◽  
Reversible Cyclization

A new photochromic diarylethene bearing an isoxazole unit has been synthesized, namely {1-(3,5-dimethyl-4-isoxazolyl), 2-[2-methyl-5-(3-methoxyphenyl)-3-thienyl]}perfluorocyclopentene. Its properties, including photochromic reactivity both in solution and in PMMA film, photoconversion ratio at photostationary state, fluorescence and optical recording property were investigated. It underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light both in hexane and in PMMA. The isomeric compound also functioned as a fluorescence switch by photoirradiation. Using this dithienylethene as optical storage was performed successfully.

Photochromism and Fluorescence of a Novel Unsymmetrical Diarylethene Material Bearing Benzene and Thiophene Ring

2012 ◽  
Vol 164 ◽  
pp. 251-254 ◽  
Author(s):  
Shu Hong Jing ◽  
Shou Zhi Pu ◽  
Hui Li
Keyword(s):  
Visible Light ◽  
Uv Light ◽  
Thiophene Ring ◽  
Amorphous Film ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Solid States ◽  
Reversible Cyclization

A new photochromic diarylethene compound, 1-[2-methyl-(5-(4- dioxolane) phenyl)-3-thienyl]-2-(2-methyl-3-benzothiophene)perfluorocyclopentene (1o)was synthesized. Its properties, including photochromism and fluorescence were investigated in detail both in solution and PMMA amorphous film. It underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light in hexane. The compound showed good phtochromism both in solution and in solid states. Diarylethene 1o changed the color from colorless to purple upon irradiation with 297 nm UV light, in which absorption maxima were observed at 539 nm in hexane and at 547nm in PMMA film, respectively. Using diarylethene 1c/PMMA film as recording medium, optical recording was performed successfully. This new photochromic system also exhibited remarkable optical storage character

Synthesis and Properties of a New Unsymmetrical Diarylethene Bearing Two Thiophene Rings

2012 ◽  
Vol 490-495 ◽  
pp. 3672-3675
Author(s):  
Hui Li ◽  
Yuan Ming Tu ◽  
Gang Liu
Keyword(s):  
Visible Light ◽  
Fluorescence Intensity ◽  
Fluorescence Property ◽  
Pmma Film ◽  
Isomeric Compound ◽  
Fluorescence Switch ◽  
Reversible Cyclization

A new unsymmetrical photochromic diarylethene has been synthesized, namely {1-(2,5-dimethyl-3-thienyl),2-[2-methyl-5-(4-trifluoromethylphenyl)-3-thienyl]}perfluorocyclopentene. Its properties, including photochromic reactivity in solution and fluorescence property both in solution and in PMMA film were investigated. It underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light. The isomeric compound functioned as a fluorescence switch by photoirradiation both in solution and in PMMA film. The fluorescence intensity also showed regular changes along with the change of concentration.

Synthesis and Characterization of Photochromic 1-(3,5-dimethyl-4-isoxazolyl)-2-[2-methyl-5-(3-methylphenyl)-3-thienyl]perfluorocyclopentene

2011 ◽  
Vol 327 ◽  
pp. 45-48
Author(s):  
Hui Li ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Visible Light ◽  
Uv Light ◽  
Optical Storage ◽  
Optical Recording ◽  
Synthesis And Characterization ◽  
Pmma Film ◽  
Strong Fluorescence ◽  
Photostationary State ◽  
Fluorescence Switching

A new unsymmetrical photochromic diarylethene, 1-(3,5-dimethyl-4-isoxazolyl)-2- [2-methyl-5-(3-methylphenyl)-3-thienyl]perfluorocyclopentene (1o) was synthesized. Its properties, including photochromic reactivity both in solution and in PMMA film, photoconversion ratio at photostationary state, fluorescence and optical recording property were investigated. The diarylethene underwent reversible photochromism, changing from colorless to purple after irradiation with UV light or visible light both in hexane and PMMA film. In hexane, the diarylethene exhibited relatively strong fluorescence switching. Using the diarylethene 1c as optical storage was performed successfully.

Photochromism and Optical Recording of a Novel Photochromic Hybrid Diarylethene Bearing an Isoxazole Unit

2011 ◽  
Vol 393-395 ◽  
pp. 222-225
Author(s):  
Hong Liang Liu ◽  
Shou Zhi Pu ◽  
Cong Bin Fan ◽  
Hui Li
Keyword(s):  
Visible Light ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Fluorescent Properties ◽  
Fluorescence Switch

A novel photochromic hybrid diarylethene bearing an isoxazole moiety was synthesized and its photochromic and fluorescent properties were also investigated. This compound exhibited good photochromism and functioned as a fluorescence switch upon alternating irradiation with UV and visible light both in solution and in PMMA film. Using this diarylethene 1c as optical storage was performed successfully.

A Novel Photochromic Diarylethene Based on Thiophene and Isoxazole Moieties for Optical Recording

2011 ◽  
Vol 239-242 ◽  
pp. 3290-3293
Author(s):  
Hong Liang Liu ◽  
Shou Zhi Pu ◽  
Wei Jun Liu ◽  
Shi Qiang Cui
Keyword(s):  
Uv Light ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Fluorescent Properties ◽  
Strong Fluorescence ◽  
Closed Ring ◽  
Fluorescence Switch ◽  
Open Ring ◽  
Reversible Cyclization

A novel photochromic diarylethene based on isoxazole moiety was synthesized and its photochromic and fluorescent properties were also investigated. It underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light in hexane and in PMMA film. The compound exhibited remarkable photochromism, changing from colorless to purple after irradiation with UV light. When irradiation with UV light, the fluorescence intensity declined remarkably. The results showed that the diarylethene exhibited a relatively strong fluorescence switch along with the photochromism from open-ring isomer to closed-ring isomer. Using this dithienylethene 1c as optical storage was performed successfully.

A Novel Unsymmetrical Diarylethene Material Bearing Double Thiophene Ring

2013 ◽  
Vol 763 ◽  
pp. 65-68
Author(s):  
Shu Hong Jing ◽  
Cong Bin Fan ◽  
Shou Zhi Pu
Keyword(s):  
Visible Light ◽  
Uv Light ◽  
Thiophene Ring ◽  
Amorphous Film ◽  
Optical Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Solid States ◽  
Reversible Cyclization

A new photochromic diarylethene compound, 1-[2-methyl-5-(3-thienyl)-3-thieny-2-[2-methyl-5-(3-benzaldehyde)-3-thieny perfluorocyclopentene (1a) was synthesized. Its properties, including photochromism and fluorescence were investigated in detail both in solution and PMMA amorphous film. It underwent reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light in hexane. The compound showed good phtochromism both in solution and in solid states. Diarylethene 1a changed the color from colorless to navy upon irradiation with 297 nm UV light, in which absorption maxima were observed at 577 nm in hexane and at 592 nm in PMMA film, respectively. Using diarylethene 1b/PMMA film as recording medium, optical recording was performed successfully.

Study on Material Properties with Synthesis and Property of a Novel Unsymmetrical Photochromic Diarylethene

2013 ◽  
Vol 327 ◽  
pp. 94-98
Author(s):  
Hong Yan Xu ◽  
Shou Zhi Pu ◽  
Ren Jie Wang
Keyword(s):  
Visible Light ◽  
Material Properties ◽  
Uv Light ◽  
Amorphous Film ◽  
Optical Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Photochromic Properties ◽  
Reversible Cyclization

A novel unsymmetrical diarylethene derivative bearing both benzofuran and thiophene moieties, 1-(2-methyl--3-benzofuranyl)-2-[(2-methyl-3-thienyl-5-thienyl)-3-thieny perfluorocyclopentene (1o), was synthesized. At the same time, its photochromic properties were investigated in detail. 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 and in PMMA film, and its absorption maxima were observed at 523 nm in hexane and at 539 nm in PMMA amorphous film, respectively, upon irradiation with 297 nm UV light. Finally, using this diarylethene as recording medium, polarization optical recording was carried out successfully.

Efficient Synthesis, Properties of a Novel Unsymmetrical Photochromic Diarylethene Based on Trifluoromethy Group and Formyl Group

2012 ◽  
Vol 602-604 ◽  
pp. 892-895
Author(s):  
Gang Liu ◽  
Long Liang ◽  
Duo Hua Jiang
Keyword(s):  
Fluorescence Intensity ◽  
Uv Light ◽  
Amorphous Film ◽  
Pmma Film ◽  
Photochromic Properties ◽  
Closed Ring ◽  
Fluorescence Switch ◽  
Open Ring ◽  
Synthesis Properties ◽  
Reversible Cyclization

An unsymmetrical diarylethene derivative was synthesized, and its photochromic properties and fluorescence switch were investigated in detail. 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 and in PMMA film, and its absorption maxima were observed at 599 nm in hexane and at 609 nm in PMMA amorphous film, respectively, upon irradiation with 297 nm UV light. The fluorescence intensity of diarylethene decreased dramatically along with the photochromism from open-ring isomer to closed-ring isomer upon irradiation with 297 nm light in PMMA. In hexane solution, the open-ring isomer of the diarylethene 1 exhibited relatively strong fluorescence at 419 nm when excited at 309 nm. The fluorescence intensity is highest at the concentration of 5.0×10-5 mol/L when excited at 309 nm.

Efficient Synthesis, Properties of a Novel Unsymmetrical Photochromic Diarylethene Based on Benzothiophene and Thienyl Group

2012 ◽  
Vol 455-456 ◽  
pp. 13-16
Author(s):  
Duo Hua Jiang ◽  
Gang Liu ◽  
Wei Jun Liu
Keyword(s):  
Uv Light ◽  
Amorphous Film ◽  
Pmma Film ◽  
Efficient Synthesis ◽  
Photochromic Properties ◽  
Strong Fluorescence ◽  
Fluorescence Switch ◽  
Thienyl Group ◽  
Synthesis Properties ◽  
Reversible Cyclization

An unsymmetrical diarylethene derivative was synthesized, and its photochromic properties and fluorescence switch were investigated in detail. 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 and in PMMA film, and its absorption maxima were observed at 548 nm in hexane and at 558 nm in PMMA amorphous film, respectively, upon irradiation with 297 nm UV light. The PMMA film of the diarylethene 1a exhibited relatively strong fluorescence at 413 nm when excited at 311 nm. The fluorscence intensity is highest at the concentration of 1.0×10-4 mol/L when excited at 311 nm.

Synthesis, Photochromism and Fluorescence of a Novel Diarylethene Having Thiazole Unit

2012 ◽  
Vol 455-456 ◽  
pp. 17-20
Author(s):  
Hui Li ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Spectrum ◽  
Concentration Dependence ◽  
Pmma Film ◽  
Isomeric Compound ◽  
Photostationary State ◽  
Fluorescence Switch

A new unsymmetrical isomeric diarylethene was synthesized, namely 1-(2,4-dimethyl-5-thiazolyl)-2-[2-methyl-5- (3-methoxyphenyl)-3-thienyl] perfluorocyclopentene (1o). Its photochromic reactivity both in solution and in PMMA film, photoconversion ratio at photostationary state, and fluorescence were investigated in detail. The compound displayed excellent photochromism both in solution and in PMMA film. The isomeric compound also functioned as a fluorescence switch and concentration dependence on the fluorescence spectrum in hexane.

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