Výsledky vyhledávání - "K S, Tikhomirova"

Photochromic coumarin spiropyranes with switching of optical properties by lanthanide ions

Autor: Igor V. Dorogan, Yu. V. Revinskii, Alexander D. Dubonosov, O. Yu. Karlutova, Vladimir I. Minkin, O. G. Nikolaeva, Anatoly V. Metelitsa, Vladimir A. Bren, K. S. Tikhomirova

Publikováno v: Russian Chemical Bulletin. 68:1223-1231

Coumarin spiropyrans with terminal carbohydrazide substituents were synthesized. UV irradiation of their solutions was found to initiate rearrangement into a deeply colored merocyanine form. In the presence of lanthanide cations, the obtained spiropy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16d5959e4955c0f7bd07e89c842b1708
https://doi.org/10.1007/s11172-019-2545-9

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Synthesis, Photo-, and Ionochromic Properties of Indolyl(thienyl)maleimides with Terpyridine Receptor

Autor: Alexander D. Dubonosov, Vladimir I. Minkin, K. S. Tikhomirova, Vladimir A. Bren, Evgenii N. Shepelenko, Vitaly A. Podshibyakin

Publikováno v: Russian Journal of General Chemistry. 89:409-415

Indolyl(thienyl)maleimides with terpyridine receptor in the bridge part have been synthesized. Irradiation of their toluene solutions with light at λ = 436 nm has led to the formation of cyclic isomers. The reverse ring opening reaction has occurred

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b604220ddf09ae36606cc77a5758237
https://doi.org/10.1134/s1070363219030071

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Synthesis and Photo- and Ionochromic and Spectral-Luminescent Properties of 5-Phenylpyrazolidin-3-one Azomethine Imines

Autor: K. S. Tikhomirova, Alexander D. Dubonosov, O. S. Popova, Vladimir I. Minkin, Vladimir A. Bren, Yurii V. Revinskii

Publikováno v: International Journal of Photoenergy, Vol 2018 (2018)

Photochromic 5-phenylpyrazolidin-3-one-based azomethine imines containing 2-((1H-imidazol-2-yl)methylene) 1, 2-(pyridin-2-ylmethylene) 2, 2-(quinolin-2-ylmethylene) 3, and 2-((8-hydroxyquinolin-2-yl)methylene) 4 substituents were synthesized. All the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54f379501e75bbe2558636d55a48279c
https://doi.org/10.1155/2018/9746534

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Anthracene-Containing Podands, Ion-Active Molecular Switches of Fluorescence Characteristics

Autor: K. S. Tikhomirova, Yu. V. Revinskii, Vladimir A. Bren, I. E. Tolpygin, Alexander D. Dubonosov

Publikováno v: Russian Journal of Organic Chemistry. 54:1117-1121

2,2′-[Ethane-1,2-diylbis(oxy)]bis[N-(anthracen-9-ylmethyl)ethanamine] and its bisphenylthiourea and bisthiourea derivatives have been synthesized. The diamine, being a certain analog of an aza-crown ether with an open chain, exhibits a 50 times inc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b48d021c69cb7ef80a1eef2c4ff35c3
https://doi.org/10.1134/s1070428018080018

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Photo- and ionochromic thienyl(coumarinyl)thiazoles

Autor: K. S. Tikhomirova, Vladimir I. Minkin, Yurii V. Revinskii, Vladimir A. Bren, Vitaly A. Podshibyakin, Alexander D. Dubonosov, Evgenii N. Shepelenko

Publikováno v: Journal of Molecular Structure. 1163:221-226

Thienyl (6-methoxycoumarinyl)thiazoles containing various amino groups in bridging fragment were synthesized. In the ring-opened form, the dihetarylethenes display fluorescence with quantum yields of 0.012–0.015. Irradiation of their solutions with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5cdc0ee6933a0953a08d48fa2119120a
https://doi.org/10.1016/j.molstruc.2018.03.005

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Photo- and Ionochromic Spiroindoline-2,2′-pyrano[2,3-f]chromenecarbohydrazides—Chemosensors for Lanthanide Cations

Autor: Vladimir I. Minkin, Vladimir A. Bren, O. G. Nikolaeva, Zh. V. Bren, O. Yu. Karlutova, K. S. Tikhomirova, A. V. Metelitsa, Alexander D. Dubonosov, Evgenii N. Shepelenko, A. S. Cheprasov, O. G. Karamov, Yu. V. Revinskii

Publikováno v: Doklady Chemistry. 480:121-125

Photochromic indoline spiropyrans with carbohydrazide substituents in the pyrano[2,3-f]chromene moiety of the molecule have been synthesized. These compounds exhibit inochromic properties and are chromogenic (“naked-eye”) and fluorogenic chemosen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1deb202a1c837bebbdf3d5bf187c3cf6
https://doi.org/10.1134/s0012500818060071

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Bifunctional terpyridine/ o -hydroxyimine chemosensors

Autor: Vitaly A. Podshibyakin, Vladimir I. Minkin, K. S. Tikhomirova, Leonid D. Popov, Vladimir A. Bren, Igor N. Shcherbakov, Evgenii N. Shepelenko, Yurii V. Revinskii, Alexander D. Dubonosov

Publikováno v: Journal of Molecular Structure. 1154:219-224

Terpyridines containing substituted o-iminophenolic groups were synthesized. The obtained compounds possess two emission bands: with normal (at 480–495 nm) and anomalous Stokes shifts (at 509–569 nm) generated by the fast intramolecular O→N pro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0f70f32fac3f1006d6c8a0e9e2661f5
https://doi.org/10.1016/j.molstruc.2017.09.069

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Photo- and ionochromic indolyl(thienyl)maleimides containing naphthalimide linkers

Autor: Vitaly A. Podshibyakin, Evgenii N. Shepelenko, K. S. Tikhomirova, Yurii V. Revinskii, Alexander D. Dubonosov, Vladimir A. Bren

Publikováno v: Chemistry of Heterocyclic Compounds. 54:32-37

Newly synthesized indolyl(thienyl)maleimides containing naphthalimide linkers were found to exhibit weak fluorescence due to PET effect. Irradiation at 436 nm wavelength led to the formation of their cyclic isomers. The obtained compounds showed the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9dcd4245458299089b33a83bc48d8e42
https://doi.org/10.1007/s10593-018-2226-x

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