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
More filters
Journal ArticleDOI
Azobenzene-Containing Block Copolymers as Light-Induced Reworkable Adhesives: Effects of Molecular Weight, Composition, and Block Copolymer Architectures on the Adhesive Properties
Shotaro Ito,Haruhisa Akiyama,Reiko Sekizawa,Miyuki Mori,Tamaki Fukata,Masaru Yoshida,Hideyuki Kihara +6 more
Journal ArticleDOI
Stimulus-Responsive Biopolymeric Surface: Molecular Switches for Oil/Water Separation
TL;DR: This work fabricated a stimulus-responsive biopolymeric material and demonstrated the reversible character of a hydrophilic/hydrophobic interface upon exposure to UV light.
Journal ArticleDOI
Toward an Optomechanical Control of Photoswitches by Tuning Their Spectroscopical Properties: Structural and Dynamical Insights into Azobenzene.
Felipe Zapata,Miguel Ángel Fernández-González,Daniel Rivero,Ángel Álvarez,Marco Marazzi,Luis Manuel Frutos +5 more
TL;DR: A new methodology to calculate efficiently the absorption spectrum of a single molecule when subjected to mechanical stress is presented, highlighting notable differences between the mechanical properties of cis- and trans-azobenzene conformers.
Journal ArticleDOI
Approximate photochemical dynamics of azobenzene with reactive force fields
Yan Li,Bernd Hartke +1 more
TL;DR: Reactive force fields of the ReaxFF type are fitted to the ground and first excited electronic states of azobenzene, using global parameter optimization by genetic algorithms to pave the way towards large-scale dynamics simulations of molecular machines, including bond breaking and formation.
Journal ArticleDOI
Glass wool: a novel support for heterogeneous catalysis
Ayda Elhage,Bowen Wang,Nancy Marina,M. Luisa Marin,Menandro Cruz,Anabel E. Lanterna,Juan C. Scaiano +6 more
TL;DR: Glass wool – a very inexpensive, widely available and easily handled material – is a versatile catalyst support for heterogeneous catalysis.
References
More filters
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.
Journal ArticleDOI
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.