Results 141 to 150 of about 2,975 (190)

Merocyanine dyes: synthesis, structure, properties and applications

Russian Chemical Reviews, 2009
Key approaches to the synthesis of merocyanine dyes are summarised. The dependence of the dye properties on their chemical structure, the solvent nature and the aggregation type is analysed. The main methods of studying the electronic structure of merocyanines are considered. Attention is focused on polyene–polymethine electron transitions.
A V Kulinich, Aleksandr A Ishchenko
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Photoisomerization of a sterically constrained merocyanine dye

Journal of the Chemical Society, Faraday Transactions, 1998
A particular concern regarding the photophysical properties of merocyanine 540 derivatives, and related cyanine dyes, involves identifying which double bond in the central polyenic bridge undergoes light-induced isomerization. In order to address this issue we have synthesized a novel merocyanine dye in which the first double bond is built into a ...
Andrew C. Benniston, Anthony Harriman
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Photosensitizing Merocyanine Dyes Based on Selenobarbituric Acid

Phosphorus, Sulfur, and Silicon and the Related Elements, 1992
Abstract Structural analogs of Merocyanine 540 (MC540) were synthesized to probe biological mechanisms of action and to enhance viral inactivation. Novel pyrimidine-2- selone analogs of known and modified merocyanine sensitizers are described.
Wolfgang H.H. Günther, Roger Searle, Fritz Sieber   +2 more
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ELECTRON SPIN RESONANCE IN LANGMUIR FILMS OF MEROCYANINE DYES

Thin Solid Films, 1983
Abstract Electron spin resonance measurements were performed on Langmuir films of merocyanine dyes with three different donor nuclei at room temperature and 77 K. Each system showed a single anisotropic resonance line with a g factor close to 2.00. The spin concentration and its change due to illumination were markedly dependent on the donor nuclei ...
Shin-Ichi Kuroda, Michio Sugi, Sigeru Iizima   +2 more
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X-ray photoelectron spectroscopy of merocyanine dyes

Journal of Electron Spectroscopy and Related Phenomena, 1987
Abstract Smyth's equation for calculating the partial ionic character of bonds yields better results than Pauling's equation when the electronegativity difference between the bonded atoms exceeds unity. This equation is used to establish the following binding energy/partial charge correlation for the O1s line:O1s binding energy (eV) = 534.55 + 3.29 q.
Mohamed M. Chehimi, Michel Delamar
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Synthesis and spectral properties of malononitrile-based merocyanine dyes

Russian Chemical Bulletin, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A. V. Kulinich, N. A. Derevyanko, A. A. Ishchenko   +2 more
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ChemInform Abstract: SULFUR‐ AND SELENCONTAINING MEROCYANINE DYES

Chemischer Informationsdienst, 1975
AbstractAlkylaminomethylenderivate von 5‐Pyrazolonen (Ia) und (Ib) reagieren mit dem Tetramethylindoleniumsalz (II) zu Merocyaninfarbstoffen (III).
I. YA. KVITKO, V. P. MARTYNOVA, R. P. PONOMAREVA, N. S. FEDOROVA   +3 more
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Lowest triplet state of a simple merocyanine dye

The Journal of Chemical Physics, 1974
The lowest triplet state of 3-ethyl-5-(1,3-dithiolanylidene)-rhodanine has been studied in solution and in single crystals at liquid helium temperatures. This state is tentatively assigned as a ππ* state. The origin in single crystals is composed of two lines separated by 0.6 cm−1. These lines have been interpreted as the allowed Au and Bu factor-group
A. P. Marchetti, J. F. Landry, D. S. Tinti   +2 more
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Photo- and Electroluminescence of Merocyanine Dye M-440

Molecular Crystals and Liquid Crystals, 2005
Spectral, photoluminescent (PL), and electroluminescent (EL) properties of thin films of M-440 merocyanine dye have been studied. The technique of making EL structures based on this dye is developed. Uniform yellow emission of a thin film of M-440 dye is observed at the direct bias voltage that corresponds to the injection part of current–voltage (C–V)
V. S. Manzhara, R. D. Fedorovich, A. B. Verbitsky, A. V. Kulinich, A. A. Ishchenko   +4 more
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NIR-Absorbing Merocyanine Dyes for BHJ Solar Cells

Chemistry of Materials, 2014
We have synthesized a series of new, polymethine chain extended merocyanine dyes 1–4 bearing varied acceptor units and an aminothiophene donor moiety. The optical and electronic properties of these new merocyanines have been studied in comparison with their corresponding lower homologues 5–8, which contain two methine groups less, by UV–vis and electro-
André Zitzler-Kunkel, Martin R. Lenze, Nils M. Kronenberg, Ana-Maria Krause, Matthias Stolte, Klaus Meerholz, Frank Würthner   +6 more
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