Results 201 to 210 of about 7,300 (245)

Photochromism of Diarylethene Derivatives

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Kingo Uchida, Masahiro Irie
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Blocked photochromism of diarylethenes

Journal of the American Chemical Society, 1992
We designed and synthesized chemical-gated molecules by introducing substitutents tha have hydrogen-bonding ability into 1,2-diarylethenes.
Masahiro Irie, Osamu Miyatake, Kingo Uchida   +2 more
openaire   +1 more source

Electrochemical Cyclization/Cycloreversion Reactions of Diarylethenes

Organic Letters, 2005
[reaction: see text]. Electrochemical oxidation of diarylethene derivatives induced cyclization or cycloreversion reactions. The reaction mechanism was studied with CV, absorption spectra, and theoretical calculation.
Yoshihisa, Moriyama, Kenji, Matsuda, Naoki, Tanifuji, Setsuko, Irie, Masahiro, Irie   +4 more
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Photoconversion of a Protonated Diarylethene Derivative

The Journal of Physical Chemistry A, 2012
A photochromic diarylethene with N,N-dimethyl substituted group 1a was prepared. 1a showed ring-opening and ring-closing photoisomerization with UV/vis light irradiation. Treatment of 1a with CF(3)COOH produced a protonated diarylethene 1aH. With UV light irradiation, 1aH photoconverted to protonated ring-closed isomer 1c, which is photoinactive. It is
Huan-huan, Liu, Xu, Zhang, Zeng, Gao, Yi, Chen   +3 more
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Nanocrystallization Process of Diarylethene

Molecular Crystals and Liquid Crystals, 2011
We have clarified nanocrystallization process of diarylethene in the reprecipitation method using a derivative, cis-1,2-cyano-1,2-bis(2,4,5,-trimethyl-3-thienyl)ethene (CMTE) as a typical example of diarylethene. The crystal growth was investigated by the time-dependence measurement of crystal size with dynamic light scattering (DLS ...
Norio Tagawa, Akito Masuhara, Tsunenobu Onodera, Hitoshi Kasai, Hachiro Nakanishi, Hidetoshi Oikawa   +5 more
openaire   +1 more source

Reversible C═N Bond Formation Controls Charge-Separation in an Aza-Diarylethene Photoswitch.

Journal of the American Chemical Society
Diarylethenes belong to the most eminent photoswitches and have been studied for many decades. They are found in virtually every field of application and have become highly valuable molecular tools for instilling light-responsiveness into materials ...
Maximilian Sacherer, Sofia Gracheva, H. Maid, Christian Placht, Frank Hampel, H. Dube   +5 more
semanticscholar   +1 more source

Zwitterion Interlocked Diarylethene Molecules Order, Unconnected Diarylethene Molecules Disorder

Small
AbstractA diarylethene‐based zwitterionic molecule (DZM) is newly synthesized for the development of smart films exhibiting reversible color change and switchable ionic conductivity in response to external light stimuli. This dual molecular building block is constructed through zwitterionic interlocking and strong phase separation between the dendron ...
Youngjae Wi, Dong‐Gue Kang, Hyeyoon Ko, Mintaek Oh, Junhwa Jang, Minwoo Rim, Kyung Min Lee, Nicholas P. Godman, Michael E. McConney, Kwang‐Un Jeong   +9 more
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Design of Mesomorphic Diarylethene-Based Photochromes

Journal of the American Chemical Society, 2004
The 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, Chris, Welch, Georg H, Mehl   +2 more
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Mechanical Properties and Photomechanical Fatigue of Macro- and Nano-dimensional Diarylethene Molecular Crystals.

Nano letters (Print), 2020
The diarylethene derivative, 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)perfluorocyclopentene undergoes a reversible photoisomerization between its ring-open and ring-closed forms in the solid-state and has applications as a photomechanical material ...
Thiranjeewa I. Lansakara, Fei Tong, C. Bardeen, A. Tivanski   +3 more
semanticscholar   +1 more source

Subwavelength nanopatterning of photochromic diarylethene films

Applied Physics Letters, 2012
The resolution of optical patterning is constrained by the far-field diffraction limit. In this letter, we describe an approach that exploits the unique photo- and electro-chemistry of diarylethene photochromic molecules to overcome this diffraction limit and achieve sub-wavelength nanopatterning.
P. Cantu, N. Brimhall, T. L. Andrew, CASTAGNA, ROSSELLA, BERTARELLI, CHIARA, R. Menon   +5 more
openaire   +1 more source