Zobrazeno 1 - 10
of 15
pro vyhledávání: '"N. Yu. Vasil'eva"'
Publikováno v:
Journal of Applied Spectroscopy. 83:8-11
Proteolytic equilibria of vanillic acid in aqueous solutions were studied using electronic spectroscopy. The pH ranges for anionic, dianionic, cationic, and neutral forms of vanillic acid in the ground and excited states were determined. The electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef42bf491e4f050d6afc68f56d947e60
https://doi.org/10.1007/s10812-016-0234-0
https://doi.org/10.1007/s10812-016-0234-0
Publikováno v:
Pharmaceutical Chemistry Journal. 49:167-170
The anticoagulant activity of the microcrystalline cellulose sulfate (MCCS) extracted from the wood of Abies sibirica Ledeb (molecular weight 86,000, sulfur substitution level 1.63) were studied in vitro and ex vivo. The antithrombin activity was 87.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08a86f8486fd3377d19fe1bd85225b24
https://doi.org/10.1007/s11094-015-1246-4
https://doi.org/10.1007/s11094-015-1246-4
Publikováno v:
Russian Physics Journal. 57:86-94
Methods of electronic spectroscopy and quantum chemistry are used to compare protolytic vanillin and isovanillin species. Three protolytic species: anion, cation, and neutral are distinguished in the ground state of the examined molecules. Vanillin a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9f77a52804d0191d391c1003a9412c9
https://doi.org/10.1007/s11182-014-0211-0
https://doi.org/10.1007/s11182-014-0211-0
Autor:
Laurent Djakovitch, Boris N. Kuznetsov, Catherine Pinel, A. V. Levdansky, N. Yu. Vasil’eva, A. S. Kazachenko, Galina P. Skvortsova
Publikováno v:
Bioorganicheskaya Khimiya / Russian Journal of Bioorganic Chemistry
Bioorganicheskaya Khimiya / Russian Journal of Bioorganic Chemistry, MAIK Nauka/Interperiodica, 2015, ⟨10.1134/s1068162015070158⟩
Bioorganicheskaya Khimiya / Russian Journal of Bioorganic Chemistry, MAIK Nauka/Interperiodica, 2015, ⟨10.1134/s1068162015070158⟩
The sulfation of arabinogalactan (AG) by sulfamic acid in the presence of urea in dioxane has been studied. The degree of AG sulfation increases as the sulfation temperature increases from 70 to 95°C. As indicated by 13C NMR spectroscopy, the sulfat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cca24e2785ea86e04238f01c2c986780
https://hal.archives-ouvertes.fr/hal-01265763
https://hal.archives-ouvertes.fr/hal-01265763
Publikováno v:
Optics and Spectroscopy. 93:19-26
Calculations of absorption spectra of cis-and trans-forms of stilbene by the quantum-chemical method of intermediate neglect of differential overlap with spectroscopy parametrization were carried out. The electron structure of a stilbene molecule was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c60eae1af465581bcf4a21681eafcf7b
https://doi.org/10.1134/1.1496718
https://doi.org/10.1134/1.1496718
Publikováno v:
High Energy Chemistry. 36:265-271
The possible routes of deactivation of electronically excited states of 4-methyl-7-hydroxy-2-quinolone and its protolytic forms were analyzed. The relative contribution of radiative and nonradiative deactivation channels of electronic excitation ener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a68e2e68d439ed8537166656a0675fa
https://doi.org/10.1023/a:1016229507977
https://doi.org/10.1023/a:1016229507977
Publikováno v:
Journal of Fluorescence. 9:17-25
Results of experimental and theoretical research for three bichromophore molecules, trans-stilbene-CH2-coumarin 120 (I), 4-methylumbelliferone-CH2-UC 17, and 4-(3-fluoro)-methylumbelliferone-CH2-UC 17 (II, III), are presented. Schemes of photophysica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd8204dea2a11e39b49a4f41d9306b38
https://doi.org/10.1023/a:1020527505660
https://doi.org/10.1023/a:1020527505660
Publikováno v:
Russian Physics Journal. 36:882-886
Quantum-chemical calculations of trans-stilbene and benzene molecules as well as molecules of bifluorophores based on them — trans-stilbene-CH2-coumarine 120 and phenyl-CH2-coumarine — were performed by the INDO/S method. The form of the molecula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::655823a2242e41776b7a1d82a2e80460
https://doi.org/10.1007/bf00559002
https://doi.org/10.1007/bf00559002
Publikováno v:
Soviet Physics Journal. 34:877-884
The method of partial neglect of differential overlap has been used with spectrometric parametrization to calculate the electronic structure and absorption spectra of Kl and its 3-substitution derivatives as well as aminocoumarins with fixed diethyla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::606d05afa98af5c1621890b16ffbf6a3
https://doi.org/10.1007/bf00898583
https://doi.org/10.1007/bf00898583
Autor:
L. I. Loboda, N Yu Vasil'eva, Rimma T Kuznetsova, Konstantin M. Degtyarenko, Lyibov G. Samsonova, R. M. Fofonova
Publikováno v:
Soviet Journal of Quantum Electronics. 21:174-176
The photostability of five coumarin dyes was studied on exposure to an XeCl* laser. Basic and fluorescent additives were used to improve the photostability. It was established that the former enhanced the service life of coumarin derivatives by a fac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d2a9e9f7059b0a0d7bb4db8f57a4e01
https://doi.org/10.1070/qe1991v021n02abeh003746
https://doi.org/10.1070/qe1991v021n02abeh003746