azobenzene


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azobenzene

(ˌeɪzəʊˈbɛnziːn; -bɛnˈziːn)
n
1. (Elements & Compounds) a yellow or orange crystalline solid used mainly in the manufacture of dyes. Formula: C6H5N:NC6H5
2. (Elements & Compounds) any organic compound that is a substituted derivative of azobenzene
Translations
azobenzène
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References in periodicals archive ?
1] was associated with the stretching vibration of azobenzene groups; the absorption band at 1,238-1,150 [cm.
The aromatic substitution reactions are not limited to azobenzene and benzylidene but are even more facile with N,N-dimethylbenzylamine [13,14].
The Sonochemical Degradation of Azobenzene and Related Azo Dyes: Rate Enhancements via Fenton's Reactions.
The topics include the black center in a silicon wafer for a solar cell, characteristics of the new multiferroic three-ply structure ferroelectric-ferromagnetic nanocomposite, the direct reduction of vanadium slag, dental resin composites with enhanced properties using commercial silica particles as fillers, titanium nitride modified by hydrothermal treatment in a calcium acetate solution, the structural evolution and mechanical properties of copolyamide fibers during thermal annealing, and infrared spectral characteristics of azobenzene containing a side-chain liquid crystal polymer.
The program included 11 oral presentations and more than 30 student posters addressing such diverse themes as stimuli-responsive polymeric materials, photomechanical azobenzene crystals, two-dimensional organization of gold nanoparticles and DNA-based structures with therapeutic functions.
The main objectives of the project are: i) the synthesis and characterization of several high-quality soluble functionalized graphene materials, having different organic functional molecules; ii) the tuning of the magnetoresistance by means of chemical design, introducing electronically active molecules and controlling the surface functionalization; iii) the photoswitching of the electronic properties such as electrical conductivity by covalent azobenzene derivatization; iv) the development and characterization of thin films of defective-free graphene through molecular recognition of functionalized graphenes; and v) the synthesis of magnetic nanoparticles/magnetic clusters-graphene hybrids for the room temperature tuning of magnetic properties on surfaces.
Over 100 papers selected from presentations and reviewed by peers discuss such topics as synthesizing and characterizing a novel liquid crystalline polymer bearing azobenzene, an infrared imaging system based on liquid-crystal thermo-optic effects, the microwave-assisted synthesis and mesomorphic properties of novel unsymmetric imidazolium as ionic liquid crystals, the electroluminescence of naturally oxidized polypyrrole, and improving the open circuit voltage of amorphous silicon solar cells by treating the p layer with hydrogen plasma.
They took gold nanoparticles and covered them with a mixture of two different ligand attachments, one of which contained an azobenzene group.
The second volume contains 13 review chapters discussing applications in different fields and includes coverage of layered silicate based polymeric nanocomposites; industry-relevant preparation, characterization, and applications of polymer nanocomposites; active composite polymers containing carbon nanotubes; light-induced nanostructure formation using azobenzene polymers; patterning of conjugated polymers for organic electronics and optoelectronics; electrodeposited polymers for the development of biosensors; nanosized polymers in drug delivery; nanoscale spectroscopic characterization of conductive polymer electrocoated carbon fiber surface; and nanosurface-initiated living radical polymerization.
The handles are bound to photo-reactive azobenzene atoms; the azobenzene contracts when exposed to ultraviolet light and expands when visible light is shined on it.
In the middle of the string, they put a chemical called azobenzene, which changes its shape when illuminated by certain wavelengths of light.