Results 31 to 40 of about 7,300 (245)

Excited-state electronic asymmetry prevents photoswitching in terthiophene compounds [PDF]

open access: yes, 2018
The diarylethene moiety is one of the most extensively used switches in the field of molecular electronics. Here we report on spectroscopic and quantum chemical studies of two diarylethene-based compounds with a non-C3-symmetric triethynyl terthiophene ...
Benjamin H. Strudwick   +8 more
core   +4 more sources

Disentangling electron- and electric field-induced ring-closing reactions in a diarylethene derivative on Ag(111) [PDF]

open access: yes, 2017
Using scanning tunneling microscopy and spectroscopy we investigate the adsorption properties and ring-closing reaction of a diarylethene derivative (C5F-4Py) on a Ag(111) surface.
Franke, Katharina J   +4 more
core   +2 more sources

Inelastic electron tunneling spectroscopy of difurylethene-based photochromic single-molecule junctions

open access: yesBeilstein Journal of Nanotechnology, 2017
Diarylethene-derived molecules alter their electronic structure upon transformation between the open and closed forms of the diarylethene core, when exposed to ultraviolet (UV) or visible light.
Youngsang Kim   +5 more
doaj   +1 more source

Quantitative Evaluation of Photoinduced Bending Speed of Diarylethene Crystals

open access: yesCrystals, 2015
We investigated photoinduced crystal bending behavior of various photochromic diarylethenes. In all the diarylethene derivatives we used in this work, the relationship between the initial photoinduced bending speed and the crystal thickness was well ...
Daichi Kitagawa   +3 more
doaj   +1 more source

Synthesis and Properties of Dipyridylcyclopentenes [PDF]

open access: yes, 2005
A short and general route to the substituted dipyridylcyclopentenes was explored and several new compounds belonging to this new group of diarylethenes were synthesized.
Ben L. Feringa   +6 more
core   +2 more sources

A perfluorocyclopentene based diarylethene bearing two terpyridine moieties – synthesis, photochemical properties and influence of transition metal ions

open access: yesBeilstein Journal of Organic Chemistry, 2010
The synthesis of a perfluorocyclopentene based diarylethene bearing two terpyridine units is reported. Furthermore studies of the free ligand’s photochromism and investigations regarding the influence of various transition metal ions on the photochromic ...
Falk Wehmeier, Jochen Mattay
doaj   +1 more source

Photochromic diarylethene ligands featuring 2-(imidazol-2-yl)pyridine coordination site and their iron(II) complexes

open access: yesBeilstein Journal of Organic Chemistry, 2019
A new family of photochromic diarylethene-based ligands bearing a 2-(imidazol-2-yl)pyridine coordination unit has been developed. Four members of the new family have been synthesized.
Andrey G. Lvov   +5 more
doaj   +1 more source

Silicon-based molecular switch junctions [PDF]

open access: yes, 2009
In contrast to the static operations of conventional semiconductor devices, the dynamic conformational freedom in molecular devices opens up the possibility of using molecules as new types of devices such as a molecular conformational switch or for ...
Cuniberti, Gianaurelio, Nozaki, Daijiro
core   +2 more sources

Organic nanoparticulate photochromes [PDF]

open access: yes, 2013
Photochromic organic dyes can be widely used in materials for optically rewritable data storage, photonic switches, memories, sensors, or actuators. In recent years photochromic materials based on nanoparticles became particularly focused, since they can
Feczkó, Tivadar, Voncina, Bojana
core   +1 more source

A photochemical determination of luminescence efficiency of upconverting nanoparticles

open access: yesBeilstein Journal of Organic Chemistry, 2019
Upconverting nanoparticles are a rising class of non-linear luminescent probes burgeoning since the beginning of the 2000’s, especially for their attractiveness in theranostics.
Baptiste Amouroux   +4 more
doaj   +1 more source

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