Results 31 to 40 of about 31,317 (271)

Supramolecular Self-Assembly and Photo-Induced Transition of a Halogenated Azo-Benzene Molecule on Au(111) Surface

open access: yesCrystals, 2023
Azobenzene derivatives are a unique class of photo-switch molecules with promising potential for nanoscale optical applications. We have studied the self-assembly and photo-induced mechanical switching of azobenzene derivatives on Au(111) at the single ...
Talha Ijaz   +9 more
doaj   +1 more source

Efficient light-induced phase transitions in halogen-bonded liquid crystals [PDF]

open access: yes, 2016
Here, we present a new family of light-responsive, fluorinated supramolecular liquid crystals (LCs) showing efficient and reversible light-induced LC-to-isotropic phase transitions.
Fernandez-Palacio F.   +8 more
core   +1 more source

Facile synthesis of azobenzene‐embedded conjugated macrocycles for optically switchable single‐crystal transistors and tunable supramolecular assemblies

open access: yesAggregate, 2023
A series of new π‐conjugated macrocycles (AzoM‐n‐E, n = 1–3) incorporating azobenzene units have been synthesized by a facile strategy in one‐pot reaction.
Dongdong Chang   +7 more
doaj   +1 more source

Concentration dependence of thermal isomerization process of methyl orange in ethanol [PDF]

open access: yes, 2017
The thermal isomerization (TI) rates of methyl orange (MO) and 4-dimethylaminoazobenzene (DMAAB) in ethanol (EtOH) are measured. Usually TI rates of azobenzene dyes are known to be concentration independent.
KINOSHITA Eri   +3 more
core   +2 more sources

Computational design of metal-supported molecular switches: Transient ion formation during light- and electron-induced isomerisation of azobenzene [PDF]

open access: yes, 2018
In molecular nanotechnology, a single molecule is envisioned to act as the basic building block of electronic devices. Such devices may be of special interest for organic photovoltaics, data storage, and smart materials.
Maurer, Reinhard J., Reuter, Karsten
core   +2 more sources

Computational Investigation of Tuning the Electron-Donating Ability in Metal-Free Organic Dyes Featuring an Azobenzene Spacer for Dye-Sensitized Solar Cells

open access: yesNanomaterials, 2019
A series of donor–π-conjugated spacer–acceptor (D–π–A) organic dyes featuring an azobenzene spacer were designed as chromic dyes and investigated computationally.
Md Al Mamunur Rashid   +3 more
doaj   +1 more source

Spontaneous formation of optically induced surface relief gratings [PDF]

open access: yes, 2009
A model based on Fick's law of diffusion as a phenomenological description of the molecular motion, and on the coupled mode theory, is developped to describe single-beam surface relief grating formation in azopolymers thin films. It allows to explain the
Bellini B   +8 more
core   +4 more sources

Mechanism and Dynamics of Azobenzene Photoisomerization

open access: yesJournal of the American Chemical Society, 2003
The excited-state dynamics of trans-azobenzene were investigated by femtosecond time-resolved photoelectron spectroscopy and ab initio molecular dynamics. Two near-degenerate pipi* excited states, S2 and S3,4, were identified in a region hitherto associated with only one excited state.
Schultz, Thomas   +9 more
openaire   +4 more sources

Azobenzene versus 3,3',5,5'-tetra-tert-butyl-azobenzene (TBA) at Au(111): Characterizing the role of spacer groups

open access: yes, 2010
We present large-scale density-functional theory (DFT) calculations and temperature programmed desorption measurements to characterize the structural, energetic and vibrational properties of the functionalized molecular switch 3,3',5,5'-tetra-tert-butyl ...
Bronner, Christopher   +5 more
core   +1 more source

Generating and sustaining long-lived spin states in 15N,15N′-azobenzene [PDF]

open access: yes, 2019
Long-Lived spin States (LLSs) hold a great promise for sustaining non-thermal spin order and investigating various slow processes by Nuclear Magnetic Resonance (NMR) spectroscopy.
Ivanov, Konstantin L.   +6 more
core   +1 more source

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