Efficient light-induced phase transitions in halogen-bonded liquid crystals [PDF]
, 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
Concentration dependence of thermal isomerization process of methyl orange in ethanol [PDF]
, 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
Ortho-Fluorination of azophenols increases the mesophase stability of photoresponsive hydrogen-bonded liquid crystals [PDF]
, 2018 Photoresponsive liquid crystals (LCs) whose alignment can be controlled with UV-Visible light are appealing for a range of photonic applications. From the perspective of exploring the interplay between the light response and the self-assembly of the ...
Ahmed Z. +5 more
core +1 more source
Porphyrin Co(III)-Nitrene Radical Mediated Pathway for Synthesis of o-Aminoazobenzenes
Molecules, 2018 Azobenzenes are versatile compounds with a range of applications, including dyes and pigments, food additives, indicators, radical reaction initiators, molecular switches, etc.
Monalisa Goswami, Bas de Bruin
doaj +1 more source
Controlled rotary motion of light-driven molecular motors assembled on a gold film [PDF]
, 2010 Using circular dichroism (CD) spectroscopy, we show that light-driven rotary molecular motors based on overcrowded alkenes can function in a self-assembled monolayer on semi-transparent gold films.
Adams +51 more
core +3 more sources
Supramolecular hierarchy among halogen and hydrogen bond donors in light-induced surface patterning [PDF]
, 2015 Halogen bonding, a noncovalent interaction possessing several unique features compared to the more familiar hydrogen bonding, is emerging as a powerful tool in functional materials design.
Barrett C. J. +10 more
core +1 more source
High Yielding Lithiation of Azobenzenes by Tin-Lithium Exchange [PDF]
, 2015 The lithiation of halogenated azobenzenes by a halogen-lithium exchange commonly leads to a substantial degradation of the azo-group to give hydrazine derivatives besides the desired aryl-lithium species. Yields for quenching reactions with electrophiles
A Gould, Colin +6 more
core +2 more sources
Combining UV-Vis and Resonance Raman Spectroscopy to Characterize Molecular Aggregation
Crystals, 2023 In this work, we use UV-Vis and Raman spectroscopy to correlate the intensity of selected transitions to the onset of aggregation phenomena. Through TDDFT calculations, we rationalize the formation of H-aggregates and their influence on the observed ...
Valentina Sesti +6 more
doaj +1 more source
Surface-Relief Gratings in Halogen-Bonded Polymer–Azobenzene Complexes: A Concentration-Dependence Study [PDF]
, 2017 In recent years, supramolecular complexes comprising a poly(4-vinylpyridine) backbone and azobenzene-based halogen bond donors have emerged as a promising class of materials for the inscription of light-induced surface-relief gratings (SRGs).
Arri, Priimagi +6 more
core +1 more source
From:E to Z and back again: Reversible photoisomerisation of an isolated charge-tagged azobenzene [PDF]
, 2018 Substituted azobenzenes serve as chromophores and actuators in a wide range of molecular photoswitches. Here, tandem ion mobility spectrometry coupled with laser excitation is used to investigate the photoisomerisation of selected E and Z isomers of the ...
Adamson +40 more
core +2 more sources