Results 151 to 160 of about 2,975 (190)

Characterization of evaporated thin films of merocyanine dyes

Journal of Applied Physics, 1990
Vacuum evaporation of a merocyanine dye, 3-ethyl-5 [2-(3-ethyl-2-benzothiazolidene) ethyldene]-2-thioxo-4-thiazolidione, onto different substrates such as bare and surface-oxidized silicon wafers and a quartz glass substrate is done. There is a difference in color between a film deposited on the bare silicon substrate and one on either a quartz glass ...
S. Hattori, A. Ishitani, H. Kuroda, Y. Nagasawa, Y. Mori, N. Nagai   +5 more
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Benzothiazole merocyanine dyes as middle pH optical sensors

Dyes and Pigments, 2020
Abstract Substituted merocyanine dyes were obtained by Knoevenagel condensation between formylated arylbenzothiazole and quaternary 2-alkylbenzothiazoles. The condensations were performed in the presence of sodium methoxide and the products were obtained with excellent yields after simple purification.
Felipe Lange Coelho, Rodrigo da Costa Duarte, Cláudia de Ávila Braga, Josene Maria Toldo, Paulo Fernando Bruno Gonçalves, Fabiano da Silveira Santos, Fabiano Severo Rodembusch   +6 more
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Synthesis of new merocyanine dyes of thiophene series

Mendeleev Communications, 2015
Reaction of benzo[b]thiophen-3(2H)-one or thieno[2,3-b]pyridin-3(2H)-one with diarylpropargylic alcohols gives new merocyanine dyes.
Valerii Z. Shirinian, Igor V. Zavarzin, Evgeniya S. Leonova, Ashot I. Markosyan   +3 more
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Merocyanin dye preparation for the introductory organic laboratory

Journal of Chemical Education, 1977
Synthesis of a compound that exhibits pronounced color changes with changes in solvent polarity.
M. J. Minch, S. Sadiq Shah
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Merocyanine-dye photovoltaic cell on a plastic film

Applied Physics Letters, 1981
A flexible photovoltaic cell was produced by depositing a merocyanine-dye layer on a transparent electro-conducting film, which is a polyester film coated with ITO (indium-tin oxide). Two kinds of the layered structures on the films were examined; i.e., Al/merocyanine/ITO and Ag/merocyanine/ZnO/ITO structures. It was found that the latter structure was
T. Moriizumi, K. Kudo
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Langmuir-blodgett multilayers of polymer-merocyanine-dye mixtures

Thin Solid Films, 1987
Deposition studies of mixed monolayers of poly(methylmethacrylate) (PMMA) and merocyanine chromophore (M22) were carried out by the Langmuir-Blodgett technique. The equilibrium surface pressure vs. specific area of the monolayers at the air-water interface was measured for several mixtures. The specific area vs.
Pieter Stroeve, M.P. Srinivasan, Brian G. Higgins, Stephen T. Kowel   +3 more
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Dye aggregates formed in Langmuir–Blodgett films of amphiphilic merocyanine dyes

Current Applied Physics, 2006
Abstract The electronic absorption spectra of pure Langmuir (L) films of 6MeDS prepared upon MgCl2, CaCl2, CdCl2, and CuCl2 aqueous solutions have shown that the Mg2+, Ca2+, and Cd2+ cations promote the J-aggregation of the dye, but the Cu2+ cation inhibits it.
openaire   +1 more source

Photoelectrochemical Studies of Electrodes Coated with Merocyanine Dye

Berichte der Bunsengesellschaft für physikalische Chemie, 1982
AbstractDeposited films of merocyanine dye (3‐carboxymethyl‐5‐[2‐(3‐octadecyl‐2‐benzothiazolinylidene)ethylidene]‐2‐thioxo‐4‐thiazolidinone) show various kinds of intra‐ and intermolecular changes when they are heated and/or soaked in a neutral aqueous solution.
Fumio Mizutani, Sei‐Ichiro Iijima, Kanji Sasaki, Yukio Shimura   +3 more
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Octupolar Merocyanine Dyes: A New Class of Nonlinear Optical Chromophores

Chemistry – A European Journal, 2012
AbstractA set of new octupolar merocyanine chromophores was designed and synthesized. These compounds were prepared from the reaction of 1,3,5‐triformyl‐2,4,6‐trihydroxybenzene with heterocyclic nucleophiles. Octupolar dyes were formed exclusively in their open‐dye form.
Yevgen M, Poronik, Vincent, Hugues, Mireille, Blanchard-Desce, Daniel T, Gryko   +3 more
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Synthesis and spectroscopic properties of some merocyanine dyes

Dyes and Pigments, 2001
The reaction between some 1,1-diarylprop-2-yn-1-ols 3 and cyclohexane-1,3-diones affords merocyanine dyes 7, the valence tautomers of the tetrahydro-2H-[1]benzopyrans. The spectroscopic properties of these dyes are discussed. The isomeric merocyanine dyes 14 and 15 derived from the reaction of 1,1-bis(4-dimethyl-aminophenyl)prop-2-yn-1-ol and 2 ...
openaire   +1 more source