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 of a New Photochromic Compound for Optical Storage

2010 ◽  
Vol 156-157 ◽  
pp. 462-466
Author(s):  
Shi Qiang Cui ◽  
Shou Zhi Pu ◽  
Gang Liu ◽  
Wei Jun Liu
Keyword(s):  
Reaction Kinetics ◽  
Uv Light ◽  
Optical Storage ◽  
Order Reaction ◽  
Pmma Film ◽  
Zeroth Order ◽  
Photochromic Compound ◽  
Photochromic Properties ◽  
First Order ◽  
Photochromic Reaction

A new photochromic compound 1-[2,5-dimethyl-3-thienyl]-2-[2-methyl-5-pyridine-3-yl-3-thieyl] perfluoroyclopentene(1a) was synthesized, its photochromic properties were examined, the result indicated that the color of the compound 1a changed from colorless to a purple one upon irradiation with 297 nm UV light, a new absorption maxima were observed at 549 and 553 nm in hexane and PMMA film, respectively. The the photochromic reaction kinetics indicated that the cyclization processes of 1 belong to the zeroth order reaction and the cycloreversion process belong to the first order reaction.This new photochromic system also exhibited remarkable optical storage character.

Efficient Synthesis and Photochromic Properties of a New Diarylethene Bearing a Condensed Aromatics Moiety

2012 ◽  
Vol 455-456 ◽  
pp. 33-36
Author(s):  
Ren Jie Wang ◽  
Hong Ying Xia ◽  
Gang Liu ◽  
Shi Qiang Cui
Keyword(s):  
Uv Light ◽  
Optical Storage ◽  
Hybrid Structure ◽  
Order Reaction ◽  
Pmma Film ◽  
Efficient Synthesis ◽  
Photochromic Properties ◽  
First Order ◽  
New Class ◽  
Hexane Solution

A new class of diarylethenes based on a hybrid structure of thiophene and naphthalene has been developed and its properties including photochromism, kinetics and fluorescence were investigated in detail. The results showed that the compound exhibited obvious photochromism, changing from colorless to red after irradiation with 297 nm UV light both in solution and in PMMA film. The kinetic experiments indicated that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction in hexane solution. At last, the results demonstrated that the diarylethene compound had attractive properties for potential application in optical storage.

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.

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.

Synthesis and Photochromism Studies of 1-(2-methyl-3-benzothiophene)-2-[2-methyl-5-(4-aminomethanephenyl)-3-thienyl]perfluorocyclopentene

2014 ◽  
Vol 886 ◽  
pp. 143-146
Author(s):  
Xiao Rong Dong ◽  
Sha Sha Wei ◽  
Gang Liu ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
Uv Light ◽  
Order Reaction ◽  
First Order Reaction ◽  
Acetonitrile Solution ◽  
Zeroth Order ◽  
Photochromic Properties ◽  
First Order ◽  
Fluorescence Switching ◽  
Photochromic Reaction

A new unsymmetrical photochromic diarylethene compound, 1-(2-methyl-3-benzothiophene)-2-[2-methyl-5-(4-aminomethanephenyl)-3-thienyperfluorocyclopentene (1a) was synthesized, its photochromic properties were examined, the result indicated that the Diarylethene 1a changed the color from colorless to purple upon irradiation with 297 nm UV light, in which absorption maxima were observed at 564 in acetonitrile. The photochromic reaction kinetics indicated that the cyclization processes of 1a belong to the zeroth order reaction and the cycloreversion process belong to the first order reaction. This new photochromic system also exhibited fluorescence switching in acetonitrile solution.

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, Properties and Application in Optical Memory of a Photochromic Diarylethene Bearing Pyrimidine and Pyridine Ring

2012 ◽  
Vol 490-495 ◽  
pp. 3733-3737
Author(s):  
Shu Hong Jing ◽  
Shou Zhi Pu ◽  
Shi Qiang Cui
Keyword(s):  
Uv Light ◽  
Optical Memory ◽  
Order Reaction ◽  
Pmma Film ◽  
Zeroth Order ◽  
First Order ◽  
Synthesis Properties ◽  
Fluorescence Switching ◽  
Photochromic Reaction ◽  
Hexane Solution

A new photochromic diarylethene compound, 1-(2,4-dimethoxy-5-pyrimidine)-2-[2-methyl-5-(3-pyridine)-3-thienyl]perfluorocyclopentene(1a), was synthesized, and its photochromic reactivity, fluorescent and electrochemical property were also investigated. Diarylethene 1a changed the color from colorless to pink upon irradiation with UV light, in which absorption maxima were observed at 520 and 519 nm in hexane and PMMA film, respectively. The the photochromic reaction kinetics indicated that the cyclization processes of 1 belong to the zeroth order reaction and the cycloreversion process belong to the first order reaction. This new photochromic system also exhibited remarkable fluorescence switching in hexane solution and this new photochromic system also exhibited remarkable optical storage character.

Synthesis and Photochromism Studies of 1-(2-methyl-3-benzofuran)-2-[2-methyl-5-naphthyl-3-thienyl]perfluorocyclopentene

2014 ◽  
Vol 1078 ◽  
pp. 86-89
Author(s):  
Xiao Rong Dong ◽  
Hong Yan Xu ◽  
Shou Zhi Pu
Keyword(s):  
Absorption Band ◽  
Uv Light ◽  
Amorphous Film ◽  
Order Reaction ◽  
Pmma Film ◽  
Zeroth Order ◽  
Fluorescent Properties ◽  
Visible Absorption ◽  
First Order ◽  
Photochromic Reaction

A novel photochromic diarylethene was synthesized and its photochromic and fluorescent properties were investigated. The results showed that this compound exhibited reversible photochromism, changing from colorless to amaranth after irradiation with UV light both in solution and PMMA amorphous film. In hexane, compound 1a exhibited an absorption peak at 266 nm, upon irradiation with 297 nm light, a new visible absorption band centered at 530 nm emerged while the original peak at 266 nm decreased. In PMMA amorphous film, diarylethene 1a also showed good photochromism as similar to that in solution. The photochromic reaction kinetics indicated that the cyclization processes of 1a belong to the zeroth order reaction and the cycloreversion process belong to the first order reaction. Diarylethene 1a also exhibited good fluorescent switching both in solution and in PMMA film upon alternating irradiation with UV and visible light.

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