Synthesis and Property of a Novel Diarylethene Based on Benzofuran and Thienyl Units for Polarization Optical Recording

2011 ◽  
Vol 474-476 ◽  
pp. 1561-1564
Author(s):  
Tao Feng Wang ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Intensity ◽  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order ◽  
Open Ring

A new photochromic diarylethene of bis(3-methyl-2-thienyl)ethene and bis(2-methyl-3- benzofuran)ethene was synthesized. Its photochromic, fluorescent and optical strorage properties were investigated. The compounds exhibited remarkable photochromism both in solution and in PMMA film. In hexane, the open-ring isomer of the diarylethene 1 exhibited relatively strong and clear fluorescent switches when excited at 270 nm. The fluorescence intensity declined along with the photochromism upon irradiation with 297 nm light. The results showed that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction. This new photochromic system also exhibited remarkable optical storage character.

Synthesis of a Novel Photochromic Diarylethene for Polarization Optical Recording

2011 ◽  
Vol 396-398 ◽  
pp. 2357-2360
Author(s):  
Tao Feng Wang ◽  
Gang Liu ◽  
Wei Jun Liu ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Intensity ◽  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order

A novel unsymmetrical photochromic diarylethene compound bearing a benzofuran unit, 1-[2-methyl-5-formyl-3-thienyl]-2-[2-methyl-3-benzofuran-yl]perfluoroyclopentene(1a) have been synthesized, its photochromic, fluorescence and optical strorage properties were investigated. The compound exhibited obviously photochromism both in hexane and in PMMA film. In hexane, the fluorescence intensity of 1a declined along with the photochromism upon irradiation with 297 nm light. The results showed that the cyclization and cycloreversion process of the compound was determined to be the zeroth/first order reaction. This new photochromic system also exhibited remarkable optical storage character.

Synthesis of a New Diarylethene Based on Isoxazole and Benzofuran Units for Polarization Optical Recording

2011 ◽  
Vol 233-235 ◽  
pp. 2476-2479
Author(s):  
Tao Feng Wang ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order

A new photochromic diarylethene1-(3,5-dimethyl-4-isoxazolyl)-2-(2-methyl-3- benzofuran) perfluorocyclopentene (1a) has been synthesized. Its photochromic, fluorescent and optical strorage properties were investigated. The compound exhibited remarkable photochromism and clear fluorescent switches both in solution and in PMMA film. The results showed that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction. This new photochromic system also exhibited remarkable optical storage character.

Photoinduced Fluorescence Switching of a New Diarylethene and its Application in Optical Recording Storage

2012 ◽  
Vol 602-604 ◽  
pp. 896-899
Author(s):  
Cong Bin Fan ◽  
Luo Han Zhang ◽  
Tao Feng Wang ◽  
Gang Liu
Keyword(s):  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order ◽  
Fluorescence Switching

A novel unsymmetrical photochromic diarylethene 1-(2-methyl-3-benzothienyl)-2-{2-n-butyl-5-[2-(1,3-dioxolane)]-3-thienyl}perfluorocyclopentene(1O) was synthesized, and its photochromic, fluorescent and optical strorage properties were investigated. The compounds 1O exhibited remarkable photochromism both in solution and in PMMA film, and the results showed that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction. In addition, this new photochromic system also exhibited remarkable optical storage character.

Synthesis, Photochromism and Optical Storage of a Novel Unsymmetrical Diarylethene Compound

2010 ◽  
Vol 156-157 ◽  
pp. 665-669
Author(s):  
Tao Feng Wang ◽  
Zhi Gang Liu ◽  
Shou Zhi Pu ◽  
Gang Liu
Keyword(s):  
Fluorescence Intensity ◽  
Uv Light ◽  
Optical Storage ◽  
Order Reaction ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order

A new unsymmetrical photochromic diarylethene 1-[2,5-dimethyl-3-thienyl]-2-[3,5-difluorophenyl]perfluoroyclopentene (1a) was synthesized, its photochromic, fluorescent and optical strorage properties were examined, the result indicated that the diarylethene 1a changed the color from colorless to purple upon irradiation with 313 nm UV light, in which absorption maxima were observed at 542nm and 556nm in hexane and PMMA film, respectively. This new photochromic system exhibited remarkable fluorescence intensity and clear fluorescent switches by photoirradiation in PMMA film. The results showed that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction. This new photochromic system also exhibited remarkable optical storage character.

Photochromism and Optical Storage of a Novel Unsymmetrical Diarylethene Based on Pyrazole and Benzofuran

2011 ◽  
Vol 295-297 ◽  
pp. 220-223
Author(s):  
Tao Feng Wang ◽  
Gang Liu ◽  
Shi Qiang Cui
Keyword(s):  
Fluorescence Intensity ◽  
Uv Light ◽  
Optical Storage ◽  
Order Reaction ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order

A new unsymmetrical photochromic diarylethene of bis (1,3,5-trimethyl-4-pyrazole)ethane and bis(2-methyl-3-benzofuran)ethane was synthesized, its photochromic, fluorescent and optical strorage properties were examined, the result indicated that the diarylethene 1a changed the color from colorless to violet upon irradiation with 297 nm UV light, in which new absorption maxima were observed at 539nm and 556nm in hexane and PMMA film, respectively. This new photochromic system exhibited remarkable fluorescence intensity and clear fluorescent switches by photoirradiation in hexane. The results showed that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction. This new photochromic system also exhibited remarkable optical storage character.

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.

Study on Photochromic Materials with Synthesizes and Properties of a Novel Unsymmetrical Photochromic Diarylethene

2013 ◽  
Vol 327 ◽  
pp. 78-82
Author(s):  
Zhi Yuan Sun ◽  
Xiao Dan Zhang ◽  
Shi Qiang Cui ◽  
Shou Zhi Pu
Keyword(s):  
Methyl Methacrylate ◽  
Absorption Maximum ◽  
Uv Light ◽  
Order Reaction ◽  
First Order Reaction ◽  
Pmma Film ◽  
First Order ◽  
Open Ring ◽  
Photochromic Materials ◽  
Hexane Solution

A novel unsymmetrical photochromic diarylethene 1-(2-methyl-3-benzofuran)-2-[5-(2-methylbenzene)-2-methyl-3-thieny perfluorocyclopentene1owas synthesized, then its photochromic, Kinetics and fluorescence properties were investigated. The results showed that the diarylethene compound had good photochromism upon irradiation with 297 nm UV light, in which the absorption maximum were observed at 510 nm in hexane solution and 524 nm in poly methyl methacrylate (PMMA) film. Besides, the cyclization and cycloreversion process of the compound were determined to be the zeroth and first order reaction by UV-Vis spectra, respectively. And, the open-ring isomer of the diarylethene exhibited relatively stronger fluorescence at 427 nm when excited at 273 nm in hexane solution.

Reaction Kinetics and Optical Storage Characters of a New Diarylethene Materials with Composite Properties

2012 ◽  
Vol 583 ◽  
pp. 105-108
Author(s):  
Shi Qiang Cui ◽  
Yan Hua Yang ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
High Capacity ◽  
Optical Storage ◽  
Order Reaction ◽  
Optical Recording ◽  
Pmma Film ◽  
Zeroth Order ◽  
Photochromic Properties ◽  
First Order ◽  
Composite Properties

Photochromism; Diarylethene materials; Fluorecence; Reaction kinetics. Abstract. A new unsymmetrical photochromic diarylethene, 1-(2-methyl-5-phenyl-3-thienyl)-2-[2-methyl-5-(4-formyl-phenyl)-3-thienyl]perfluorocyclopentene (1a), was synthesized, and its photochromic properties and reaction kinetics were investigated, respectively. The compound exhibited good photochromism both in solution and in PMMA film with alternating irradiation by UV/Vis light. The cyclization processes of compound 1a belong to the zeroth order reaction, while the cycloreversion processes belong to the first order reaction. The optical recording results indicated that the new photochromic diarylethene can be applied in high capacity optical storage.

Synthesis and Properties of a New Diarylethene Bearing Isoxazole Moieties

2013 ◽  
Vol 763 ◽  
pp. 69-73
Author(s):  
Hui Li ◽  
Yuan Ming Tu ◽  
Gang Liu
Keyword(s):  
Reaction Kinetics ◽  
Optical Storage ◽  
Order Reaction ◽  
First Order Reaction ◽  
Fluorescence Properties ◽  
Zeroth Order ◽  
First Order ◽  
Closed Ring ◽  
Open Ring ◽  
Photochromic Reaction

A new unsymmetrical photochromic diarylethene bearing an isoxazole moiety was developed, and its properties, including photochromism, photochromic reaction kinetics, and fluorescence properties were investigated systematically. The compound exhibited remarkable photochromism and functioned as a fluorescent photoswitch both in solution and in PMMA films. The results illustrated that the cyclization processes of diarylethene 1 belong to the zeroth order reaction when open-ring isomers changed to closed-ring isomers and the cycloreversion process belong to the first order reaction. Inaddition, using this diarylethene 1c as optical storage was performed successfully.

Study on Advanced Composite Synthesis of a New Photochromic Diarylethene Materials with Bearing Thiophene Units

2012 ◽  
Vol 583 ◽  
pp. 121-124
Author(s):  
Hui Li ◽  
Yuan Ming Tu ◽  
Gang Liu
Keyword(s):  
Fluorescence Intensity ◽  
Uv Light ◽  
Optical Storage ◽  
Optical Recording ◽  
Pmma Film ◽  
Recording Medium ◽  
Strong Fluorescence ◽  
Advanced Composite ◽  
Open Ring ◽  
Storage Properties

A novel unsymmetrical photochromic diarylethene bearing bisthiophene moiety 1-[2,5-dimethyl-3-thienyl]-2-[2-methyl-5-(2-methylphenyl)-3-thienyl]perfluoroyclopentene (1o) was synthesized and its photochromic, fluorescent and optical storage properties were also investigated. The compounds exhibited remarkable photochromism both in solution and in PMMA film. The result indicated that the diarylethene 1o changed the color from colorless to purple upon irradiation with 297 nm UV light, in which absorption maxima were observed at 527 and 541 nm in hexane and PMMA film, respectively. The open-ring isomer of the diarylethene 1 also exhibited relatively strong fluorescence both in hexane and PMMA film. The fluorescence intensity declined along with the photochromism upon irradiation with 297 nm light. In addition, optical recording using diarylethene 1c as recording medium was carried out successfully.

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