Results 171 to 180 of about 2,599 (210)
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Design of Mesomorphic Diarylethene-Based Photochromes
Journal of the American Chemical Society, 2004The effects of the molecular variation of diarylethenes on the mesomorphic, photochromic, and fluorescence properties have been investigated, and dramatic changes in the fluorescence, photochromic, and liquid crystal behavior were observed.
Michel, Frigoli +2 more
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Photosalient Effect of a Diarylethene with a Perfluorocyclohexene Ring
Chemistry – A European Journal, 2016AbstractCrystals of a diarylethene with a perfluorocyclohexene ring exhibit a remarkable photosalient effect upon UV light irradiation that is attributed to the structural changes that occur when going from open‐ to closed‐ring isomers in the crystalline state, together with the existence of two conformers with different photoconversions compared with ...
Eri Hatano +6 more
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Photochromism of diarylethenes in nanolayers of a single crystal
Photochemical & Photobiological Sciences, 20031,2-Bis(2-methyl-5-pentafluorophenyl-3-thienyl)perfluorocyclopentene (1a) and 1,2-bis(2-ethyl-5-phenyl-3-thienyl)-perfluorocyclopentene (2a) were found to form a 1:1 stoichiometric co-crystal. The crystal is composed of alternate nanolayers of 1a and 2a molecular sheets.
Masakazu, Morimoto +2 more
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Photocyclization Dynamics of Diarylethene
2020The focus of this chapter is a study that uses UED to probe the atomic motions that take place during the ‘photocyclization’ or photoinduced ring-closing reaction of the molecule 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)perfluorocyclopentene, herein abbreviated to PFC.
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Photochromic and Fluorescent Properties of a Diarylethene Dimer.
ChemInform, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
Kyoko Yagi, Masahiro Irie
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Photocurrent Generation of Diarylethene Polymers
Molecular Crystals and Liquid Crystals, 2005ABSTRACT The combination of photochromism and electrical properties in diarylethene (DA) polymers were investigated. Photoswitching function could be introduced into a polymer by incorporating 2,3-bis(2-methylbenzo[b]thiophene-3-yl)hexafluorocyclopentene (BTF) unit plus p-phenylene vinylene (PPV) unit alternatively.
Eunkyoung Kim, Hyo Won Lee
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The Journal of Physical Chemistry A, 2009
A class of diarylethenes with a imidazole bridge unit has been synthesized and shows photochromic properties with UV/vis light irradiation. It is found that electronic properties of substituent in the imidazole bridge unit have a great effect on both photochromism and fluorescence of diarylethenes because of intramolecular charge transfer.
Huan-huan, Liu, Yi, Chen
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A class of diarylethenes with a imidazole bridge unit has been synthesized and shows photochromic properties with UV/vis light irradiation. It is found that electronic properties of substituent in the imidazole bridge unit have a great effect on both photochromism and fluorescence of diarylethenes because of intramolecular charge transfer.
Huan-huan, Liu, Yi, Chen
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New Thermally Irreversible and Fluorescent Photochromic Diarylethenes
The Journal of Physical Chemistry A, 2008A photokinetic investigation is here carried out on four newly synthesized diarylethenes with the aim to test their performance as photoreversible chromogenic and light emitting materials. The pentatomic ring, which fixes these diarylethenes in the cis conformation, contains a Si atom or a PO group.
Cipolloni M. +5 more
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Turn-On Mode Fluorescent Diarylethenes
2017Turn-on mode highly fluorescent photochromic chromophores, which are initially non-luminous under irradiation with visible light but activated to emit fluorescence upon irradiation with UV light, have been developed. The chromophores are sulfone derivatives of 1,2-bis(2-alkyl-1-benzothiophen-3-yl)perfluorocyclopentene.
Masakazu Morimoto, Masahiro Irie
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Discovery and development of photochromic diarylethenes
Pure and Applied Chemistry, 2015Abstract A new family of thermally irreversible photochromic molecules, named “diarylethene,” was serendipitously discovered a quarter of a century ago. The diarylethenes undergo thermally irreversible, fatigue resistant, ultrafast and highly sensitive photochromic reactions.
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