Výsledky vyhledávání - "E. A. Posokhov"

Radiationless deactivation of the excited phototautomer form and molecular structure of ESIPT-compounds

Autor: V. M. Shershukov, Lydia M. Ptyagina, E. A. Posokhov, Andrey O. Doroshenko, Alla A. Verezubova, V. T. Skripkina

Publikováno v: Photochemical & Photobiological Sciences. 1:92-99

Correlation between the character of electronic density redistribution in the excited normal and phototautomer forms, which are involved in the excited state intramolecular proton transfer (ESIPT) reaction, and the rates of primary photoprocesses--pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::422e003de79b0a9b9dcd2580b698246a
https://doi.org/10.1039/b107255m

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[Untitled]

Autor: E. A. Posokhov, A. D. Sheiko, Andrey O. Doroshenko, A. V. Grigorovich, Alexander P. Demchenko, Vasyl G. Pivovarenko

Publikováno v: Russian Chemical Bulletin. 50:404-412

The complex formation of 2,5-bis[4-(1,7,10,13-tetraoxa-4-azacyclopentadec-4-yl)benzylidene]cyclopentanone and several model compounds, prospective metal-sensitive fluorescent probes, with Mg2+, Ca2+, and Ba2+ ions in acetonitrile was studied. The aza

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9973a323e4f3d22890852a2c6ffcb438
https://doi.org/10.1023/a:1011392619954

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[Untitled]

Autor: Andrey O. Doroshenko, E. A. Posokhov, K. M. Sytnik, S. N. Kovalenko

Publikováno v: Chemistry of Heterocyclic Compounds. 37:633-644

The spectral-luminescence properties of ortho-hydroxy derivatives of 2-(coumarinyl-3)-5-phenyl-1,3,4-oxadiazole have been studied. It is shown that the basic reason for the decreased quantum yield of emission for the compounds studied is the high-spe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d4305d77c6cc03e393fb45fcc49feb2a
https://doi.org/10.1023/a:1011621025169

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Mechanisms of photoinduced protolytic interactions of 2,5-diphenyloxazoleortho-hydroxy derivatives in media of various acidities

Autor: E. A. Posokhov, A. D. Doroshenko

Publikováno v: High Energy Chemistry. 34:93-100

The mechanism of photoinduced intra- and intermolecular protolytic interactions ofortho-hydroxy derivatives of 2,5-diphenyloxazole in an aqueous alcohol medium was studied over a wide range of acidity from pH ∼13 toH 0 of ∼−7. The spectral para

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::053ae74112894b5dc279a2b84ade495f
https://doi.org/10.1007/bf02761836

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Excited state intramolecular proton transfer reaction and luminescent properties of theortho-hydroxy derivatives of 2,5-diphenyl-1,3,4-oxadiazole

Autor: E. A. Posokhov, Andrey O. Doroshenko, Alla A. Verezubova, Lydia M. Ptyagina

Publikováno v: Journal of Physical Organic Chemistry. 13:253-265

Luminescent properties of several ortho-hydroxy derivatives of 2,5-diphenyl-1,3,4-oxadiazole were studied in solvents of different polarity and protolytic ability and compared with the analogous derivatives of 1,3-oxazole, studied by us earlier. Eval

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a6d92e22b67edb6f839f16b6b47696d
https://doi.org/10.1002/1099-1395(200005)13:5<253::aid-poc238>3.0.co

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Proton phototransfer in a series of ortho-hydroxy derivatives of 2,5-diaryl-1,3-oxazole and 2,5-diaryl-1,3,4-oxadiazole in polystyrene films

Autor: E. A. Posokhov, Andrey O. Doroshenko

Publikováno v: Theoretical and Experimental Chemistry. 35:334-337

Proton transfer in the lower excited singlet state has been examined for ortho-hydroxy derivatives of 2,5-diaryl-1,3-oxazole and 2,5-diaryl-1,3,4-oxadiazole in polystyrene films, as this largely determines the spectral characteristics. There is found

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8bd82f113c0f4f160cf7a2a60047b0de
https://doi.org/10.1007/bf02522792

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[Untitled]

Autor: Alexey V. Grigorovich, E. A. Posokhov, Andrey O. Doroshenko, Alexander P. Demchenko, Vasyl G. Pivovarenko

Publikováno v: Molecular Engineering. 8:199-215

1,3- bis-[4-(N-aza-15-crown-5)-benzylidene]cyclopentanone-2 ( I), a ketocyanine dye, was synthesized. The electronic absorption and emission spectra, protolytic interactions in aqueous alcohol media and complex formation with alkali earth metals in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ceff13c8c7eead5fd5e3ce15862bfa5c
https://doi.org/10.1023/a:1008393201193

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Solvatofluorochromic properties of sulfonyl fluoride derivatives of 5-aryl(heteroaryl)-2-phenyl-1,3,4-oxadiazole, promising fluorescent probes

Autor: V. M. Shershukov, E. A. Posokhov, V. T. Skripkina, Andrey O. Doroshenko, E. N. Obukhova

Publikováno v: Scopus-Elsevier

The spectral characteristics of seven 5-aryl(heteroaryl)-2-phenyl-1,3,4-oxadiazole derivatives, containing an expressed electron-accepting grouping such as sulfonyl fluoride or sulfonyldifluoromethane in the para position of the phenyl substituent, h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed85c86d1bb3927a8f3cc057f6ca5670
https://doi.org/10.1007/bf02253043

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Spectral and luminescence properties of derivatives of 2-aryl[9,10]phenanthroxazole

Autor: V. G. Mitina, E. A. Posokhov, O. A. Ponomarev, V. M. Shershukov, Andrey O. Doroshenko

Publikováno v: Chemistry of Heterocyclic Compounds. 31:492-499

Certain 2-aryl derivatives of [9,10]phenanthroxazole have been synthesized and their spectral and luminescence properties have been investigated. It has been shown that the introduction of acceptor substituents into the para position of the 2 -phenyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11b1311ad57fd1589433ff5a62300f33
https://doi.org/10.1007/bf01177024

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