Results 11 to 20 of about 5,608 (248)

Active Ester Functionalized Azobenzenes as Versatile Building Blocks

open access: yesMolecules, 2021
Azobenzenes are important molecular switches that can still be difficult to functionalize selectively. A high yielding Pd-catalyzed cross-coupling method under mild conditions for the introduction of NHS esters to azobenzenes and diazocines has been ...
Sven Schultzke   +2 more
doaj   +1 more source

Azobenzene-Oxindole Photochromic Dyads. [PDF]

open access: yesAngew Chem Int Ed Engl
AbstractManipulation of molecular geometry using photoresponsive units is a powerful tool in supramolecular chemistry, smart materials, and photopharmacology. Current synthetic chemistry offers many responsive molecules that perform such a task.
Ovalle M, Doellerer D, Feringa BL.
europepmc   +4 more sources

Dihydroazulene‐Azobenzene‐Dihydroazulene Triad Photoswitches [PDF]

open access: yesChemistry – A European Journal, 2021
AbstractPhotoswitch triads comprising two dihydroazulene (DHA) units in conjugation with a central trans‐azobenzene (AZB) unit were prepared in stepwise protocols starting from meta‐ and para‐disubstituted azobenzenes. The para‐connected triad had significantly altered optical properties and lacked the photoactivity of the separate photochromes.
Alvis Mengots   +9 more
openaire   +6 more sources

Building Triazolated Macrocycles from Bis-Propargylated Calix[4]arenes and Bis-Azidomethylated Azobenzene or Stilbene

open access: yesMolbank, 2023
Copper(I)-catalyzed azide-alkyne cycloaddition was employed to construct biscalixarene assemblies from the calix[4]arene dipropargyl ethers and 4,4′-bis-azidomethylated azobenzene or stilbene.
Ivan Lentin   +6 more
doaj   +1 more source

Photomechanical Solid Polymers: Model for Pressure and Strain Induced by Photoisomerization and Photo-Orientation

open access: yesApplied Sciences, 2022
Photoactive polymers are important for fundamental studies and applications in several area of photonics such as data storage and holography and nonlinear optics and photomechanics.
Zouheir Sekkat
doaj   +1 more source

Reprocessable Photodeformable Azobenzene Polymers [PDF]

open access: yesMolecules, 2021
Photodeformable azobenzene (azo) polymers are a class of smart polymers that can efficiently convert light energy into mechanical power, holding great promise in various photoactuating applications. They are typically of crosslinked polymer networks with highly oriented azo mesogens embedded inside. Upon exposure to the light of appropriate wavelength,
openaire   +3 more sources

Azobenzene as Antimicrobial Molecules

open access: yesMolecules, 2022
Azo molecules, characterized by the presence of a -N=N- double bond, are widely used in various fields due to their sensitivity to external stimuli, ch as light. The emergence of bacterial resistance has pushed research towards designing new antimicrobial molecules that are more efficient than those currently in use.
Di Martino, Miriam   +5 more
openaire   +4 more sources

Fluorescent Azobenzene-Containing Compounds: From Structure to Mechanism

open access: yesCrystals, 2021
The reversible photoisomerization of azobenzenes has been extensively studied to construct systems with optical responsiveness; however, this process limits the luminescence of these compounds.
Lulu Xue   +9 more
doaj   +1 more source

Columnar Aggregates of Azobenzene Stars: Exploring Intermolecular Interactions, Structure, and Stability in Atomistic Simulations

open access: yesMolecules, 2021
We present a simulation study of supramolecular aggregates formed by three-arm azobenzene (Azo) stars with a benzene-1,3,5-tricarboxamide (BTA) core in water.
Markus Koch   +2 more
doaj   +1 more source

Light-Activating PROTACs in Cancer: Chemical Design, Challenges, and Applications

open access: yesApplied Sciences, 2022
Nonselective cell damage remains a significant limitation of radiation therapies in cancer. Decades of successful integration of radiation therapies with other medicinal chemistry strategies significantly improved therapeutic benefits in cancer ...
Arvind Negi   +2 more
doaj   +1 more source

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