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
The Halogen Bond
Gabriella Cavallo,Pierangelo Metrangolo,Pierangelo Metrangolo,Roberto Milani,Tullio Pilati,Arri Priimagi,Giuseppe Resnati,Giancarlo Terraneo +7 more
TL;DR: The specific advantages brought up by a design based on the use of the halogen bond will be demonstrated in quite different fields spanning from material sciences to biomolecular recognition and drug design.
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Artificial Molecular Machines
TL;DR: The latest generations of sophisticated synthetic molecular machine systems in which the controlled motion of subcomponents is used to perform complex tasks are discussed, paving the way to applications and the realization of a new era of “molecular nanotechnology”.
Journal ArticleDOI
Spiropyran-based dynamic materials
TL;DR: This review discusses the synthesis, switching conditions, and use of dynamic materials in which spiropyran has been attached to the surfaces of polymers, biomacromolecules, inorganic nanoparticles, as well as solid surfaces.
Journal ArticleDOI
Stimuli-responsive supramolecular polymeric materials.
TL;DR: This critical review of recent developments in supramolecular polymeric materials is addressed, which can respond to appropriate external stimuli at the fundamental level due to the existence of noncovalent interactions of the building blocks.
References
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Journal ArticleDOI
Quenching and Recovery of Fluorescence of Azobenzenes by Acid–Base Reactions
TL;DR: In this article, a hybrid 2-borylazobenzene and pH-responsive 4-(dimethylamino)azobensene was synthesized as a hybrid.
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Saturation effect in azobenzene polymers used for polarization holography
TL;DR: In this paper, the saturation model of the polyester material can be used for the computer simulation of a polarization holographic data storage system under development, which is based on fast Fourier transforms, taking the parameters of the recording material and the optical processes into account.
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Physical Properties of Aminoazobenzene Dyes. VI. Intramolecular Hydrogen Bonding and Tautomerism in 4-Hydroxyazobenzene Derivatives and Higher Homologs1
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Trans-to-cis isomerization of stilbene following an ultrafast laser pulse
TL;DR: In this article, a trans-to-cis photoisomerization of stilbene induced by a femtosecond-scale laser pulse is described, showing that the basic mechanism is the simplest imaginable: Electronic excitation by the laser pulse weakens the central C-C bond, and also excites vibrations of this bond.