Efficient Synthesis, Photochromism and Fluorescence Properties of a Novel Diarylethene Bearing a Fluorene

2014 ◽  
Vol 1003 ◽  
pp. 51-54
Author(s):  
Shui Jun Xia ◽  
Xiao Rong Dong ◽  
Gang Liu
Keyword(s):  
Reaction Kinetics ◽  
Fluorescence Intensity ◽  
Order Reaction ◽  
First Order Reaction ◽  
Efficient Synthesis ◽  
Zeroth Order ◽  
Strong Fluorescence ◽  
First Order ◽  
Closed Ring ◽  
Photochromic Reaction

A new symmetrical photochromic diarylethene, 1,2-bis-[2-methyl-5-(9,9-dibutyl-9H-fluorene) -3-thienyl] perfluorocyclopentene (1a), was synthesized and its optoelectronic properties, such as photochromism in solution and fluorescence were investigated. 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. The new diarylethene also exhibited relatively strong fluorescence by photoirradiation in solution and the fluorescence intensity decreased along with the photochromism upon irradiation 297 nm light and its closed-ring isomer showed almost no fluorescence.

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.

Synthesizes and Properties Research of a Photochromic Diarylethene Bearing a Ethynyl Moiety

2014 ◽  
Vol 952 ◽  
pp. 79-83
Author(s):  
Feng Xia Sun ◽  
Shi Qiang Cui ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
Uv Light ◽  
Amorphous Film ◽  
Order Reaction ◽  
First Order Reaction ◽  
Fluorescence Properties ◽  
Zeroth Order ◽  
First Order ◽  
Photochromic Reaction

A new unsymmetrical photochromic diarylethene compound, 1-(2-Methyl-3-benzothiophene)-2-(5-(4-ethynyl)-2-methylthiophen-3-yl)Perfluorocyclopentene (1o),was synthesized and its photochemical, fluorescence properties were investigated systematically both in solution and PMMA amorphous film. The results showed that this compound exhibited reversible photochromism, changing from colorless to pink after irradiation with 297 nm UV light both in solution and in PMMA amorphous film. 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.

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.

Photochromism and Fluorescent of a Novel Diarylethene Bearing Methylpyridine Group

2014 ◽  
Vol 952 ◽  
pp. 105-108
Author(s):  
Shi Qiang Cui ◽  
Feng Xia Sun ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
Amorphous Film ◽  
Order Reaction ◽  
First Order Reaction ◽  
Fluorescence Properties ◽  
Zeroth Order ◽  
First Order ◽  
Photochromic Reaction

A new unsymmetrical photochromic diarylethene compound, 1-(2-methyl-3-benzofuranyl)-2-[2-methyl-5-(2-methyl-6-pyridyl)-3-thienyl] perfluorocyclopentene (1o), was synthesized and its photochemical, fluorescence properties were investigated systematically both in solution and PMMA amorphous film. The photochromic reaction kinetics results indicated that the cyclization processes of1obelong to the zeroth order reaction and the cycloreversion process belong to the first order reaction.

Synthesis and Photochromism Studies of 1-(3,5-dimethyl-4-isoxazole)-2-[2-methyl-5-naphthyl-3-thienyl] perfluorocyclopentene

2014 ◽  
Vol 1003 ◽  
pp. 15-18
Author(s):  
Xiao Rong Dong ◽  
Ren Jie Wang ◽  
Gang Liu ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
Uv Light ◽  
Order Reaction ◽  
First Order Reaction ◽  
Zeroth Order ◽  
Photochromic Behavior ◽  
First Order ◽  
New Class ◽  
Photochemical Properties ◽  
Photochromic Reaction

A new class of unsymmetrical photochromic diarylethene bearing an isoxazole moiety was synthesized. Its photochemical properties, including photochromic behavior and kinetics, have been investigated systematically. The result indicated that the Diarylethene1achanged the color from colorless to pink irradiation with 297 nm UV light, in which absorption maxima were observed at 522 nm in hexane. The photochromic reaction kinetics indicated that the cyclization processes of1abelong to the zeroth order reaction and the cycloreversion process belong to the first order reaction.

Properties Study of a New Perfluorocyclopentenes Bearing Fluorene

2013 ◽  
Vol 763 ◽  
pp. 53-56
Author(s):  
Hai Chang Ding ◽  
Chun Hong Zheng ◽  
Gang Liu
Keyword(s):  
Reaction Kinetics ◽  
Order Reaction ◽  
Optoelectronic Properties ◽  
First Order Reaction ◽  
Zeroth Order ◽  
Amorphous Films ◽  
First Order ◽  
Cyclization Process ◽  
Photochromic Reaction ◽  
Fluorescence Peak

A new unsymmetrical photochromic diarylethene 1-(2-methyl-benzothiophenyl) - 2-((5-(9, 9-dibutyl-fluorenyl)-2-methylthiophen-3-yl)) perfluoroncyclopentene (1o), was synthesized and its optoelectronic properties, such as photochromism in solution as well as in poly-methylmethacrylate (PMMA) amorphous films and fluorescence were investigated. The photochromic reaction kinetics indicated that the cyclization process of 1o belongs to the zeroth order reaction and the cycloreversion process belongs to the first order reaction. When the concentration at 5 × 10-5 mol/L the fluorescence peak have the maximum.

Synthesizes and Properties Research of a Photochromic Diarylethene Bearing a Hexatomic Ring

2013 ◽  
Vol 830 ◽  
pp. 278-281
Author(s):  
Zhi Yuan Sun ◽  
Wei Wei Geng ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
Fluorescence Intensity ◽  
Uv Light ◽  
Order Reaction ◽  
First Order Reaction ◽  
First Order ◽  
Solid Films ◽  
Kinetics Of

A new photochromic diarylethene compound 1-(2-cyan-3-phenyl)-2-[5-(4-cyanobenzene) -2-methyl-3-thienyl] perfluorocyclopentene was synthesized. And their properties inculding photochromis, fluorescence in both hexane and solid films, reaction kinetics of cyclization and cycloreversion were studied. And its absorption maxima were observed at 539 nm in hexane and at 552 nm in PMMA films, respectively, upon irradiation with 313 nm UV light. The fluorescence intensity of diarylethene decreased upon irradiation with 313 nm UV light. Besides, the cyclization and cycloreversion processes of the compound were determined to be the zeroth and first order reaction by UV-Vis spectra, respectively.

Synethesis and Properties of 1-(2-trifluoromethylphenyl)-2-[2-methyl-5-(3-N,N-dimethylphenyl)-3-thienyperfluorocyclopentene

2013 ◽  
Vol 473 ◽  
pp. 77-80
Author(s):  
Zhi Yuan Sun ◽  
Dan Dan Xue ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
Fluorescence Intensity ◽  
Uv Light ◽  
Order Reaction ◽  
First Order Reaction ◽  
Fluorescent Properties ◽  
First Order ◽  
Kinetics Of

An unsymmetrical photochromic diarylethene 1-(2-trifluoromethylphenyl)-2-[2-methyl-5-(3-N,N-dimethylphenyl)-3-thienyperfluorocyclopentene (1a) was synthesized and its photochromism, fluorescent properties and reaction kinetics of cyclization and cycloreversion were studied in detail. The compound exhibited remarkable photochromism and its absorption maxima were observed at 552 nm in hexane and at 569 nm in PMMA films upon irradiation with 297 nm UV light. The fluorescence intensity of diarylethene decreased upon irradiation with 297 nm UV light. In addiation, reaction kinetics of the cyclization and cycloreversion processes of the compound were determined to be the zeroth and first order reaction by UV-Vis spectra, respectively.

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.

Synthesis and Application of 1-[2-methyl-3-benzofuran]-2-[2-methyl-5-(4-pentylphenyl)-3-thienyl]perfluorocyclopentene

2014 ◽  
Vol 707 ◽  
pp. 52-55
Author(s):  
Ya Ming Xue ◽  
Ren Jie Wang ◽  
Shou Zhi Pu
Keyword(s):  
Reaction Kinetics ◽  
Uv Light ◽  
Order Reaction ◽  
First Order Reaction ◽  
First Order ◽  
Photochromic Reaction

An unsymmetrical photochromic diarylethene1o, which is named 1-[2-methyl-3-benzofuran]-2-[2-methyl-5-(4-pentylphenyl)-3-thienyl] perfluorocyclopentene, has been synthesized, and its properties including photochromism and fluorescence have been investigated. The compound exhibited remarkable photochromism, changing from colorless to light pink after irradiation with 297 nm UV light. The photochromic reaction kinetics was studied in solution and their cyclization/cycloreversion processes belong to zeroth/first order reaction in acetonitrile.

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