Results 41 to 50 of about 922 (172)

THE SHEET COPPERHALOID PHOTOCHROME SUN-PROTECTIVE GLASSES

open access: yes, 1997
The silver-free photochrome glasses with halogenides of the copper and cadmium are presented as the object of the scientific investigation. The purpose of the work: the development of the scientific bases for the organisation of the mass production of ...
Mashir, Yury Ivanovich   +1 more
core  

Leveraging P‐Reactivity and Ring Strain to Generate Molecular Diversity in Dithienylethenes‐Based Photochromes

open access: yesChemistryEurope, Volume 4, Issue 3, March 2026.
We prepared phosphetene‐bridged dithienylethenes and investigated their phosphorus chemistry and ring strain reactivity leading to oxophospholenes. The impact of these transformations on photochromic properties was examined through experimental and theoretical studies, highlighting the value of π‐extended phosphetenes for combining P‐chemistry with ...
Alexandre Chemin   +7 more
wiley   +1 more source

White Way, Broad Street, Eufaula, Alabama

open access: yes, 2005
Colorized print of "White Way," Broad St. in Eufaula, AL. Street lined with mostly one and two-story buildings. They face a green area with lampposts. Covered sidewalk along front of the buildings. American flag on top of one of the buildings.
J. D. Schaub
core  

Acceleration of photochromism and negative photochromism by the interactions with mesoporous silicas

open access: yesPhotochemical & Photobiological Sciences, 2019
The adsorption of merocyanine dye onto mesoporous silicas with varied pore sizes (5.5, 9.4 and 2.2 nm) from the toluene solution of 1,3,3-trimethylindolino-6'-nitrobenzopyrylospiran under UV irradiation was investigated quantitatively. The photoinduced adsorption of merocyanine onto SBA-15 with the pore diameter of 9.4 nm followed the pseudo-second ...
Tetsuo, Yamaguchi   +3 more
openaire   +2 more sources

America Postcard, Niagara Falls

open access: yes, 1910
Photochrome of American Fall, Niagara Falls, NY.

core   +1 more source

Useful Spectrokinetic Methods for the Investigation of Photochromic and Thermo-Photochromic Spiropyrans [PDF]

open access: yesMolecules, 2008
This review reports on the main results of a set of kinetic elucidation methods developed by our team over the last few years. Formalisms, procedures and examples to solve all possible AB photochromic and thermophotochromic kinetics are presented. Also, discussions of the operating conditions, the continuous irradiation experiment, the spectrokinetic ...
openaire   +3 more sources

Synthesis and study of Salen-based photochromic diarylethene ligands : Understanding of the metal-photochrome interaction for optical switching

open access: yes, 2013
Le travail de recherche s’intéresse au contrôle, par la lumière, des propriétés de la matière. Dans ce vaste domaine, notre équipe s’est focalisée sur les molécules organiques photochromes de type diaryléthène.
Guérin, Juliette
core  

Functionalization of photochromic dithienylmaleimides

open access: yesRSC Advances, 2015
Synthetic routes for the functionalization of photochromic dithienylmaleimides at three different positions are reported.
Wutz, Daniel   +3 more
openaire   +2 more sources

Conception de matériaux moléculaires commutables intégrant l'unité photochrome diméthyldihydropyrène

open access: yes, 2017
This work deals with the design of molecular multifunctional photoswitchable systems incorporating dimethyldihydropyrene (DHP) photochromic unit and with their implantation and characterization in switchable devices.We show that a tetra pyridinium ...
Bakkar, Assil
core   +1 more source

The Study of temperature influence on the steady state of photochrome response

open access: yes, 2007
katedra: KTM; přílohy: 2 CD, 1 přílohy; rozsah: 95 stran DP, 116 stran přílohDiplomová práce se zabývá studiem vlivu teploty na rovnovážný stav fotochromních pigmentů při expozici a následné relaxaci barevné změny vyvolané osvitem UV záření za ...
Žáčková, Ivana
core  

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