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 new azobenzene-based design strategy for detergents in membrane protein research
Leonhard H. Urner,Leonhard H. Urner,Leonhard H. Urner,Maiko Schulze,Yasmine B. Maier,Waldemar Hoffmann,Waldemar Hoffmann,Stephan Warnke,Idlir Liko,Kristin Folmert,Christian Manz,Carol V. Robinson,Rainer Haag,Kevin Pagel,Kevin Pagel +14 more
TL;DR: The first systematic gas-phase study of azobenzene detergent is presented, which enables the native mass spectrometry analysis of membrane proteins and whose charge-reducing properties can be tuned by irradiation with light.
Journal ArticleDOI
Isomerisation of an intramolecular hydrogen-bonded photoswitch: protonated azobis(2-imidazole)
TL;DR: This study demonstrates the versatility of tandem ion mobility mass spectrometry for exploring the isomerisation of molecular photoswitches initiated by either light or collisions.
Journal ArticleDOI
A photo-responsive poly(amide–triazole) physical organogel bearing azobenzene residues in the main chain
Huai-Zhen Wang,Hak-Fun Chow +1 more
TL;DR: The synthesis of a click poly(amide-triazole) bearing multiple azobenzene units along the main chain was reported, and the polymer was found to form strong physical polymer organogels.
Journal ArticleDOI
Synthesis and Binding Studies of a Tetra-α Aryl-Extended Photoresponsive Calix[4]pyrrole Receptor Bearing meso-Alkyl Substituents
Journal ArticleDOI
Manipulation and assembly of small objects in liquid crystals by dynamical disorganizing effect of push-pull-azobenzene-dye
Seiji Kurihara,Kazuhiro Ohta,Takahiro Oda,Ryo Izumi,Yutaka Kuwahara,Tomonari Ogata,Sunnam Kim +6 more
TL;DR: The combination of the photo-controlled dynamical change in the liquid crystalline order and the intrinsic self-assembly property of a liquid crystal is promising for use in technologies that require not only the organization of small objects but also thephoto-driving of nano- and micro-sized mechanical materials.
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.