Journal ArticleDOI
Photoisomerization in different classes of azobenzene
TLDR
This critical review details the studies completed to date on the 3 main classes of azobenzene derivatives and explains the mechanism behind the isomerization mechanism.Abstract:
Azobenzene undergoes trans → cisisomerization when irradiated with light tuned to an appropriate wavelength. The reverse cis →transisomerization can be driven by light or occurs thermally in the dark. Azobenzene's photochromatic properties make it an ideal component of numerous molecular devices and functional materials. Despite the abundance of application-driven research, azobenzene photochemistry and the isomerization mechanism remain topics of investigation. Additional substituents on the azobenzene ring system change the spectroscopic properties and isomerization mechanism. This critical review details the studies completed to date on the 3 main classes of azobenzene derivatives. Understanding the differences in photochemistry, which originate from substitution, is imperative in exploiting azobenzene in the desired applications.read more
Citations
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Journal ArticleDOI
A Machine-Driven Hunt for Global Reaction Coordinates of Azobenzene Photoisomerization.
Pedram Tavadze,Guillermo Avendaño Franco,Pengju Ren,Xiaodong Wen,Yong-Wang Li,James P. Lewis +5 more
TL;DR: In this paper, a global reaction coordinate (containing all internal coordinates) is presented to thoroughly describe the reaction mechanism for azobenzene photoisomerization, which includes all of the internal coordinates of azobensene contributing to the photoisomersomerization reaction coordinate.
Journal ArticleDOI
Sequential photoisomerisation dynamics of the push–pull azobenzene Disperse Red 1
TL;DR: In this article, the ultrafast dynamics of the push-pull azobenzene Disperse Red 1 following photoexcitation at λpump = 475 nm in solution in 2-fluorotoluene have been probed by broadband transient absorption spectroscopy and fluorescence up-conversion spectra.
Journal ArticleDOI
Design, synthesis and applications of responsive macrocycles
TL;DR: A review of photo-, pH-and redox-responsive macrocyclic molecules can be found in this paper, where the authors provide an overview of the design, synthesis, and applications of photo, pH, and redox responsive macrocycles.
Journal ArticleDOI
Azobenzene‐Based Macrocyclic Arenes: Synthesis, Crystal Structures, and Light‐Controlled Molecular Encapsulation and Release
Yuezhou Liu,Hongliang Wang,Peiren Liu,Huangtianzhi Zhu,Bingbing Shi,Xin Hong,Feihe Huang,Feihe Huang +7 more
TL;DR: This work provides a simple and effective method to prepare azo-macrocycles, and the light-responsive molecular encapsulation systems in this work may further advance the design and applications of novel photo-responsive host-guest systems.
Journal ArticleDOI
Azobenzene-based solar thermal energy storage enhanced by gold nanoparticles for rapid, optically-triggered heat release at room temperature
TL;DR: In this paper, the authors presented a new strategy for the design of efficient Azobenzene-based solar thermal fuel (STF) that operate at room temperature, where the heat storage and release behavior of these composites can be controlled completely using light alone at the room temperature.
References
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Journal ArticleDOI
Photomechanics: directed bending of a polymer film by light.
TL;DR: It is shown that a single film of a liquid-crystal network containing an azobenzene chromophore can be repeatedly and precisely bent along any chosen direction by using linearly polarized light.
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Light-driven motion of liquids on a photoresponsive surface
TL;DR: The light-driven motion of a fluid substance in a surface-modified glass tube suggests potential applicability to microscale chemical process systems.
Journal ArticleDOI
Design and synthesis of chromophores and polymers for electro-optic and photorefractive applications
TL;DR: The ability of nonlinear optical materials to transmit, process and store information forms the basis of emerging optoelectronic and photonic technologies as discussed by the authors, where organic chromophore-containing polymers, in which the refractive index can be controlled by light or an electric field, are expected to play an important role.
Journal ArticleDOI
Ultrafast Dynamics of Photochromic Systems.
Naoto Tamai,Hiroshi Miyasaka +1 more
TL;DR: Reaction dynamics of the photochromic systems such as spiropyran, flugide and diarylethene derivatives in femto- to nano-second time region was reviewed and mechanisms of rapid reaction channels in various phases were discussed.