Photochromism Material of New Unsymmetrical Isomeric Diarylethenes Bearing a Thiophene and Pyridine Unit

2012 ◽  
Vol 164 ◽  
pp. 239-242
Author(s):  
Ming Liu ◽  
Gang Liu ◽  
Shi Qiang Cui
Keyword(s):  
Optical Storage ◽  
Pmma Film ◽  
Storage Material ◽  
Fluorescent Properties ◽  
Photochromic Behavior ◽  
Fluorescence Switch

A new photochromic diarylethene compound, 1-(2,5-dimethyl-3-thiophene)-2-[5-(4-pyridine)-2-methyl-3-thienyl]perfluorocyclopentene(1a) was synthesized. its photochromic and fluorescent properties have been investigated in detail. The results of the research showed that it has shown good photochromic behavior and fluorescence switch in solution and PMMA film. Finally, photo-mode rewritable optical storage using 1b was performed. The images demonstrated that the compound can be used as optical storage material

Synthesis and Fluorescence Switch of a Photochromic Diarylethene Bearing Benzene and Pyridine Unit

2011 ◽  
Vol 393-395 ◽  
pp. 354-357
Author(s):  
Ming Liu ◽  
Gang Liu ◽  
Shi Qiang Cui
Keyword(s):  
Room Temperature ◽  
Optical Storage ◽  
Fluorescence Properties ◽  
Storage Material ◽  
Fluorescent Properties ◽  
Strong Fluorescence ◽  
Photochromic Behavior ◽  
Fluorescence Switch

A new photochromic diarylethene compound, 1-(2-methylphenyl)-2-[5-(2-pyridine)-2-methyl-3-thienyl]perfluorocyclopentene (1a) was synthesized. its photochromic and fluorescent properties have been investigated in detail. Meanwhile, 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 fluorescence in different solution and in PMMA at room temperature. Finally, photo-mode rewritable optical storage using 1b was performed. The images demonstrated that the compound can be used as optical storage material.

Efficient Synthesis and Properties of a Photochromic Hybrid Diarylethene Bearing a Isoxazole Moiety

2011 ◽  
Vol 399-401 ◽  
pp. 1039-1042
Author(s):  
Hong Liang Liu ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui ◽  
Hui Li
Keyword(s):  
Visible Light ◽  
Optical Storage ◽  
Pmma Film ◽  
Efficient Synthesis ◽  
Fluorescent Properties ◽  
Fluorescence Switch

A novel photochromic hybrid diarylethene based on both isoxazole and cyano moieties 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.

Efficient Synthesis, Photochromism and Application of a Photochromic Diarylethene Bearing a Benzene Unit

2011 ◽  
Vol 295-297 ◽  
pp. 1038-1041
Author(s):  
Ren Jie Wang ◽  
Gang Liu ◽  
Hong Ying Xia ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Intensity ◽  
Uv Light ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Efficient Synthesis ◽  
Storage Material ◽  
Photochromic Properties ◽  
Fluorescence Switch ◽  
Hexane Solution

A novel photochromic diarylethene bearing a six-membered aryl unit, 1-[2-methyl-5-(3-fluorophenyl)-3-thienyl]-2-(2-methoxylphenyl)perfluorocyclopentene (1o), was synthesized and its photochromic properties, fluorescence switch and optical recording were investigated in detail. This compound exhibited remarkable photochromism, changing from colorless to blue after irradiation with 297 nm UV light both in solution and in PMMA film, respectively. The new diarylethene also exhibited excellent fluorescence intensity and fluorescence switches by photoirradiation in hexane solution. Finally, photo-mode rewritable optical storage using 1o was performed. The images demonstrated that the compound as optical storage material was very sensitive responding to 633 nm recording laser, and the recorded-signals were provided with high S/N ratio.

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.

Synthesis of a Photochromic Diarylethene Having Thiazole and a Pyridyl Group for Optical Recording

2010 ◽  
Vol 156-157 ◽  
pp. 650-654 ◽  
Author(s):  
Hui Li ◽  
Yong Liang Xia ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Intensity ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Fluorescent Properties ◽  
Strong Fluorescence ◽  
Pyridyl Group ◽  
Open Ring

A new unsymmetrical photochromic diarylethene namly 1-(2,4-dimethyl-5- thiazolyl)-2- [(2-methyl-5-(2-pyridyl)-3-thienyl)]perfluorocyclopentene was synthesized, and its photochromic and fluorescent properties were also investigated. The compound exhibited good photochromism both in solution and in PMMA film. In PMMA film, The open-ring isomer of the diarylethene 1 exhibited relatively strong fluorescence at 427 nm when excited at 320 nm. The fluorescence intensity declined along with the photochromism upon irradiation with 297 nm light. Using this dithienylethene 1b as optical storage was performed successfully.

Photochromism and Optical Recording of a Novel Diarylethene Bearing Phenanthrene Unit

2013 ◽  
Vol 763 ◽  
pp. 79-83 ◽  
Author(s):  
Xue Li ◽  
Cong Bin Fan ◽  
Gang Liu
Keyword(s):  
Uv Light ◽  
Light Stimulus ◽  
Optical Recording ◽  
Color Variation ◽  
Pmma Film ◽  
Fluorescent Properties ◽  
Closed Ring ◽  
Fluorescence Switch ◽  
Open Ring ◽  
Photochromic Molecules

Photochromic molecules are part of a large class of materials in which light stimulus not only induces a color variation but also affects other physicochemical properties. In the paper, an asymmetrical photochromic diarylethene, 1-(2,4-dimethyl-3-thiazole)-2-[2-methyl-5-(10-phenanthrenyl)-3-thienyPerfluorocyclopentene was synthesized and its photochromic and fluorescent properties were systematically investigated. The compound exhibited remarkable photochromic, changing from colorless to OrangeRed after irradiation with UV light both in solution and in PMMA film. In addition, its fluorescence property was also discussed. 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 diarylethene 1a as optical storage was performed successfully.

Efficient Synthesis and Properties of a Photochromic Diarylethene Bearing Thiophene and Isoxazole Moieties

2011 ◽  
Vol 295-297 ◽  
pp. 1070-1073
Author(s):  
Hong Liang Liu ◽  
Gang Liu ◽  
Shi Qiang Cui ◽  
Wei Jun Liu
Keyword(s):  
Uv Light ◽  
Amorphous Film ◽  
Optical Storage ◽  
Efficient Synthesis ◽  
Fluorescent Properties ◽  
Strong Fluorescence ◽  
Closed Ring ◽  
Fluorescence Switch ◽  
Open Ring ◽  
Fluorescence Switching

A novel photochromic diarylethene based on isoxazole moiety was synthesized and its photochromic and fluorescent properties were also investigated. This compound exhibited reversible photochromism, changing from colorless to red 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. 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 New Photochromic Diarylethene for Optical Storage

2011 ◽  
Vol 295-297 ◽  
pp. 1133-1137
Author(s):  
Pei Jian Yan ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Fluorescent Properties

A new photochromic diarylethene, 1-(2-ethylbenzo[b]thiophen-3-yl)-2-(2-cyanophenyl) perfluorocyclopentene (1o), was synthesized, and its photochromic and fluorescent properties were investigated. This compound exhibited reversible photochromism and fluorescence photoswitches both in solution and in PMMA films. Using diarylethene 1c/PMMA film as recording medium, optical recording was performed successfully.

Synthesis and Properties Study of 1-(2,4-dimethoxyl-5-pyrimidinyl)-2-[2-methyl-5-(4-n-pentylbenzene)-3-thienyl] Perfluorocyclopentene

2014 ◽  
Vol 952 ◽  
pp. 75-78
Author(s):  
Jing Jing Liu ◽  
Hong Jing Jia ◽  
Shou Zhi Pu
Keyword(s):  
Uv Light ◽  
Initial Increase ◽  
Pmma Film ◽  
Fluorescent Properties ◽  
Dramatic Decrease ◽  
Photochromic Behavior ◽  
Pyrimidine Moiety

A novel photochromic diarylethene based on a six-membered pyrimidine moiety 1-(2,4-dimethoxyl-5-pyrimidinyl)-2-[2-methyl-5-(4-n-pentylbenzene)-3-thienyl] perfluorocyclopent-ene has been synthesized. Its properties, including photochromic behavior and fluorescent properties, have been investigated. The compounds exhibited remarkable photochromism, changing from colorless to red after irradiation with UV light both in solution and in PMMA film. The fluorescence had a remarkable initial increase with subsequent dramatic decrease with increasing concentration. The results indicated that the pyrimidine moiety played a very important role during the process of photoisomerization reactions.

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