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.

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

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.

Synthesis, Photochromism Properties of a Hybrid Diarylethene Based on Hydroxyl Group

2011 ◽  
Vol 393-395 ◽  
pp. 385-388
Author(s):  
Duo Hua Jiang ◽  
Wei Jun Liu ◽  
Shi Qiang Cui ◽  
Gang Liu
Keyword(s):  
Visible Light ◽  
Uv Light ◽  
Amorphous Film ◽  
Methanol Solution ◽  
Fluorescence Properties ◽  
Hydroxyl Group ◽  
Pmma Film ◽  
Open Ring ◽  
Reversible Cyclization

A novel unsymmetrical diarylethene derivative 1-[2-methyl-5-(3-trifluoromethylphenyl)-3-thienyl]-2-[2-methyl-5-(4-hydroxylphenyl)-3-thienyl]hexafluorocyclopentene (1a) was successfully synthesized. The properties of the compound, including photochromic and fluorescence properties of the diarylethene were also investigated systematically. 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 593 nm in methanol and at 598 nm in PMMA amorphous film, respectively, upon irradiation with 297 nm UV light. In methanol solution, the open-ring isomer of the diarylethene 1 exhibited relatively fluorescence at 569 nm when excited at 360 nm.

A New Unsymmetrical Diarylethene for Reversible Holographic Recording

2010 ◽  
Vol 156-157 ◽  
pp. 655-659 ◽  
Author(s):  
Pei Jian Yan ◽  
Zhi Peng Tong ◽  
Shou Zhi Pu ◽  
Wei Jun Liu
Keyword(s):  
High Spatial Resolution ◽  
Uv Light ◽  
Amorphous Film ◽  
Optical Recording ◽  
Holographic Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Fluorescent Properties ◽  
Fluorescence Switching ◽  
High Photosensitivity

A novel photochromic diarylethene, 1-(2-ethyl-benzothiophen-3-yl)-2-(2-methyl-5-(2-cyanophenyl)thien-3-yl)perfluorocyclopentene(1o) was synthesized, and its photochromic and fluorescent properties were investigated. This compound exhibited reversible photochromism, changing from colorless to purle after irradiation with UV light both in solution and in poly-methyl methacrylate (PMMA) amorphous film. Also, it exhibited remarkable fluorescence switching in the solid state. When we used diarylethene 1c/PMMA film as recording medium, rewritable holographic optical storage was performed successfully. The results demonstrated that the diarylethene compound had attractive properties for polarization holographic optical recording, such as high photosensitivity, high spatial resolution, excellent fatigue-resistance.

Study on Composite Photochromic Properties of New Diarylethenes Bearing Naphthyl Rings

2012 ◽  
Vol 583 ◽  
pp. 134-137
Author(s):  
Pan Pan Ren ◽  
Shou Zhi Pu
Keyword(s):  
Visible Light ◽  
Uv Light ◽  
Amorphous Film ◽  
Optoelectronic Properties ◽  
Pmma Film ◽  
Amorphous Films ◽  
Photochromic Properties ◽  
Reversible Cyclization

A novel photochromic diarylethene, 1-[(2-methyl-5-(4-fluorophenyl)-3-thienyl)]-2-(2-methyl-1-naphthyl) perfluorocyclopentene (1o), was synthesized. Its optoelectronic properties, such as photochromism in solution as well as in poly-methylmethacrylate (PMMA) amorphous films, fluorescences 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 511 nm in hexane and at 522 nm in PMMA amorphous film, respectively, upon irradiation with 297 nm UV light.

A New Photochromic Diarylethene for Reversible Molecule Switching Properties Based on Pyrrole and Thiophene

2011 ◽  
Vol 284-286 ◽  
pp. 2239-2242
Author(s):  
Shang Hua He ◽  
Gang Liu ◽  
Ren Jie Wang
Keyword(s):  
Visible Light ◽  
Reaction Kinetics ◽  
Absorption Maximum ◽  
Uv Light ◽  
Amorphous Film ◽  
Pmma Film ◽  
Reversible Cyclization ◽  
Hexane Solution

A new unsymmetrical photochromic diarylethene bearing a pyrrole and a thiophene aryl unit 1-(5-cyan-1,2-dimethylpyrrole)-2-(5-aldehyde-2-butylthiophene) perfluorocyclopentene(1a) has been synthesized. Its properties, including photochromism and kinetics were investigated in detail. It underwent reversible cyclization and cycloreversion reactions upon alternating with UV and visible light both in solution and in PMMA film. The results showed that this compound exhibited reversible photochromism, changing from colorless to blue upon irradiation with UV light, in which absorption maximum were observed at 649 nm and 583 nm in solution and PMMA amorphous film, respectively. This new photochromic system also exhibited remarkable reaction kinetics in hexane solution.

Synthesis and Photochromism Properties of a Novel Hybrid Diarylethene

2011 ◽  
Vol 393-395 ◽  
pp. 1506-1509
Author(s):  
Wei Jun Liu ◽  
Wei Ping Wang ◽  
Cong Bin Fan ◽  
Gang Liu
Keyword(s):  
Visible Light ◽  
Electrochemical Properties ◽  
Data Storage ◽  
Uv Light ◽  
Amorphous Film ◽  
Pmma Film ◽  
Switching Property ◽  
Reversible Cyclization ◽  
Potential Use

A novel unsymmetrical diarylethene derivative 1-[2-methyl-5-(3-trifluoromethylphenyl)-3-thienyl]-2-[2-methyl-5-(4-methoxyphenyl)-3-thienyl]hexafluorocyclopentene (1a) was designed and successfully synthesized. The properties of the compound, including photochromic and electrochemical properties of the diarylethene were also investigated systematically. The results showed that this compound exhibited reversible photochromism, 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 606 nm in methanol and at 613 nm in PMMA amorphous film, respectively, upon irradiation with 297 nm UV light. Besides, the electrochemcial switching property can be potential use for electrochemistry data storage.

Efficient Synthesis, Photochromic Properties and Application of a New Unsymmetrical Diarylethene

2011 ◽  
Vol 474-476 ◽  
pp. 1547-1550
Author(s):  
Ren Jie Wang ◽  
Hong Ying Xia ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Uv Light ◽  
Amorphous Film ◽  
Optical Recording ◽  
Pmma Film ◽  
Efficient Synthesis ◽  
Recording Medium ◽  
Photochromic Properties ◽  
Photochemical Properties

A new unsymmetrical photochromic diarylethene compound, [1-(2-methyl-5-(3-fluorophenyl)-3-thienyl), 2-(2-methyl-3-benzothienyl)]perfluorocyclopentene (1o), was synthesized and its photochemical properties, such as photochromism and fluorescence in solution as well as in PMMA amorphous film were investigated in detail. The results showed that the compound exhibited remarkable photochromism, changing from colorless to violet after irradiation with 297 nm UV light both in solution and in PMMA film. Finally, using this dithienylethene as recording medium, polarization optical recording was carried out successfully.

Study on Photochromic Compounds with Synthesis Photochromic Diarylethenes Based on Five-Membered Heterocycle and Benzenze Ring

2013 ◽  
Vol 763 ◽  
pp. 84-87
Author(s):  
Pan Pan Ren ◽  
Ren Jie Wang ◽  
Shou Zhi Pu
Keyword(s):  
Visible Light ◽  
Uv Light ◽  
Cyano Group ◽  
Optical Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Photochromic Compounds ◽  
Membered Heterocycle ◽  
Hexane Solution ◽  
Fluorescence Peak

A novel photochromic diarylethene 1-{[2-methyl-5-formyl-3-thieny}-2-[2-methyl-5-(2-cyanophenyl)-3-thienyperfluorocyclopentene (1o) has been synthesized for the examination of its properties including photochromism, fluorescence properties and optical recording. The concentration effect in hexane solution was investigated also. The result indicated that the diarylethene 1o changed the color from colorless to royalblue upon irradiation with 297 nm UV light, in which absorption maxima were observed at 592 and 603 nm in hexane and PMMA film, respectively. The colorless open form with fluorescence character could be regenerated by irradiation with visible light. In hexane solution, when the concentration at 2 × 10-5 mol/L the fluorescence peak have the maximum. The cyano group and its substituted position can availably modulate the optical and electrochemical behaviours of these diarylethene derivatives. In addition, polarization optical recording using this diarylethene as recording medium was performed successfully.

Synthesis, Properties and Application in Optical Memory of a New Photochromic Diarylethene Based on a Chlorine Atom

2012 ◽  
Vol 455-456 ◽  
pp. 25-28 ◽  
Author(s):  
Zhi Peng Tong ◽  
Gang Liu ◽  
Shi Qiang Cui
Keyword(s):  
Chlorine Atom ◽  
Uv Light ◽  
Optical Memory ◽  
Optical Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Photochromic Properties ◽  
Synthesis Properties

A new unsymmetrical photochromic diarylethene 1-(2,4-dimethyl-3-isoxazol)-2-[2-methyl-5-(2-chlorophenyl) -3-thienyl] perfluorocyclopentene (1a) has been synthesized. Its photochromic properties in solution and PMMA film were investigated. Diarylethene 1a changed the color from colorless to red upon irradiation with 297 nm UV light, in which absorption maxima were observed at 515 nm in hexane and at 526 nm in PMMA film, The results demonstrated that it can be potentially used as polarization holographic optical recording medium.

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