Центральная Научная Библиотека УрО РАН

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Verbitskiy E. V., Cheprakova E. M., Subbotina J.O., Schepochkin A. V., Slepukhin P. A., Rusinov G. L., Charushin V. N., Chupakhin O. N., Makarova N. I., Metelitsa A. V., Minkin V. I.
Заглавие : Synthesis, spectral and electrochemical properties of pyrimidine-containing dyes as photosensitizers for dye-sensitized solar cells
Место публикации : Dyes and Pigments. - 2014. - Vol.100. - С. 201-214
Примечания : Bibliogr. : p. 213-214 (37 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): organic dyes --pyrimidine--microwave-assisted
Аннотация: Six novel donor–π–acceptor organic dyes bearing a pyrimidine as the anchoring group have been obtained in good yields by combination of the microwave-assisted Suzuki cross-coupling and nucleophilic aromatic substitution of hydrogen reactions. Their absorption, photoluminescence and electrochemical properties were fully investigated in detail. The infrared spectra of dyes adsorbed on TiO2 indicate the formation of coordinate bonds between the pyrimidine ring of dyes and the Lewis acid sites (exposed Tin+ cations) of the TiO2 surface. This work demonstrates that the pyrimidine rings of dye sensitizers that form a coordinate bond with the Lewis acid site of a TiO2 surface are promising candidates as the electron-withdrawing anchoring group. The data from quantum calculations show that all of the dyes are potentially good photosensitizers for dye-sensitized solar cells
\\\\expert2\\NBO\\Dyes and Pigments\\2014, v. 100, p.201-214.pdf
Найти похожие

Вид документа : Статья из журнала
Шифр издания : 54/D 64
Автор(ы) : Verbitskiy E. V., Slepukhin P. A., Valova M. S., Cherprakova E. M., Schepochkin A. V., Rusinov G. L., Charushin V. N.
Заглавие : Dithienoquinazolines – A Convenient Synthesis by the Oxidative Photocyclization of 4,5-Dithienyl-Substituted Pyrimidines and Their Photophysical Properties [Электронный ресурс]
Место публикации : European Journal of Organic Chemistry. - 2014. - № 36. - С. 8133-8141
Систем. требования: http://onlinelibrary.wiley.com/doi/10.1002/ejoc.v2014.36/issuetoc
Примечания : 06.07.2015
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): dithienoquinazolines--pyrimidines--photophysical properties
Аннотация: A convenient route to a new class of thienoacene systems bearing a fused pyrimidine ring is presented along with their optoelectronic properties. The photophysical and electrochemical properties of these newly developed thieno-aza-acenes have been investigated by UV/Vis absorption and photoluminescence spectrophotometry and cyclic voltammetry, and some crystal structures have also been determined.
\\\\expert2\\nbo\\European Journal of Organic Chemistry\\2014, № 36. p.8133-8141.pdf
Найти похожие

Вид документа : Статья из журнала
Шифр издания : 54/S 89
Автор(ы) : Lipunova G. N., Nosova E. V., Subbotina J.O., Valova M. S., Charushin V. N.
Заглавие : Structure and photoluminescent properties of 2-methyl-6,7-difluoro-8-hydroxyquinoline [Электронный ресурс]
Место публикации : Russian Journal of General Chemistry. - 2015. - Vol. 85, № 7. - С. 1629-1634
Систем. требования: http://link.springer.com/article/10.1134/S1070363215070099
Примечания : Bibliogr. : p. 1634 (19 ref.). - 09.11.15
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 2-methyl-6,7-difluoro-8-hydroxyquinoline--absorption spectrum--excitation spectrum
Аннотация: The effect of fluorine atoms in the benzene ring on the photophysical properties of 2-methyl-6,7-difluoro-8-hydroxyquinoline is studied.
\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2015, V. 85, N 7, p. 1629-1634.pdf
Найти похожие

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Ovchinnikova I. G., Kim G. A., Matochkina E. G., Kodess M. I., Barykin N. V., Eltsov O. S., Nosova E. V., Rusinov G. L., Charushin V. N.
Заглавие : Synthesis, photochemical and luminescent properties of (E)-2-(2-hydroxyarylethylene)-3-phenylquinazolin-4(3H)-ones [Электронный ресурс]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2015. - Vol. 63, № 11. - С. 2467-2477
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 2477 (22 ref.). - 18.01.16
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): (e)-2-styrylquinazolin-4(3h)-ones --luminescence--ortho-hydroxystyrylquinazolinones
Аннотация: Photoinduced transformations of 2-styrylquinazolinones in solutions were studied using absorption and NMR spectroscopy methods. A possibility of control of the photochemical isomerization rate of quinazolinone 2-(hydroxyaryl)ethenyl derivatives by changing the pH of the medium was demonstrated. The bases and the solvent nature also affect the luminescence intensity of solutions of these compounds in the wavelength range of 550-650 nm. The differences in the steric organization of the ortho-hydroxystyryldiazinone system in crystals and in solutions related to the turn of the aryl group were found. Their influence on the competing processes of luminescence and photochemical transformation of the ethylene fragment were shown. The fact of reversible photo/thermal E-Z-isomerization was established for (E)-2-(2-hydroxystyryl)-3-phenylquinazolin-4(3H)-one.
\\\\expert2\\nbo\\Russian Chemical Bulletin\\2015, 63 (11), 2467-2477.pdf
Найти похожие

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Verbitskiy E. V., Schepochkin A. V., Makarova N. I., Dorogan I. V., Metelitsa A. V., Minkin V. I., Kozyukhin S., Emets V. V., Grinberg V., Chupakhin O. N., Rusinov G. L., Charushin V. N.
Заглавие : Synthesis, Photophysical and Redox Properties of the D-pi-A Type Pyrimidine Dyes Bearing the 9-Phenyl-9H-Carbazole Moiety [Электронный ресурс]
Место публикации : Journal of Fluorescence. - 2015. - Vol. 25, № 3. - С. 763-775
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 774-775 (51 ref.). - 18.01.2016
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): pyrimidines--carbazole--dye-sensitized solar cells
Аннотация: Novel donor-pi-acceptor dyes bearing the pyrimidine unit as an electron-withdrawing group have been synthesized by using combination of two processes, based on the microwave-assisted Suzuki cross-coupling reaction and nucleophilic aromatic substitution of hydrogen. Spectral properties of the obtained dyes in six aprotic solvents of various polarities have been studied by ultraviolet-visible and fluorescence spectroscopy. In contrast to the absorption spectra, fluorescence emission spectra displayed a strong dependence from their solvent polarities. The nature of the observed long wavelength maxima has been elucidated by means of quantum chemical calculations. The electrochemical properties of these dyes have been investigated by using cyclic voltammetry, while their photovoltaic performance was evaluated by a device fabrication study. The experimental and calculation data show that all of the dyes can be regarded as potentially good photosensitizers for dye-sensitized solar cells.
\\\\expert2\\nbo\\Journal of Fluorescence\\2015, v.25, p.763-775.pdf
Найти похожие

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Irgashev R. A., Kazin N. A., Makarova N. I., Dorogan I. V., Malov V. V., Tameev A. R., Rusinov G. L., Metelitsa A. V., Minkin V. I., Charushin V. N.
Заглавие : Synthesis and properties of new π-conjugated imidazole/carbazole structures
Место публикации : Dyes and Pigments. - 2017. - Vol. 141. - С. 512-520
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): imidazoles--carbazoles--absorption spectra--photoluminescence--tddft calculations--charge mobility
Аннотация: New 3-(1H-imidazol-2-yl)-9H-carbazoles and 6,6′-di(1H-imidazol-2-yl)-9H,9′H-3,3′-bicarbazoles have been prepared, starting from 9-ethyl-9H-carbazole-3-carbaldehyde or 9,9′-diethyl-9H,9′H-[3,3′-bicarbazole]-6,6′-dicarbaldehyde through their reactions with 4-methoxyaniline or 4-fluoroaniline, benzil or 2,2′-thenil [1,2-di(thien-2,2′-yl) glyoxal] and ammonium acetate on reflux in glacial acetic acid. The obtained compounds have been shown to demonstrate an effective fluorescence in the blue spectral region, exhibiting quantum yields in the range of 0.08–0.51, depending on their molecular structure and solvent polarity. The nature of the observed absorption spectra has been elucidated by the TDDFT calculations.
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Moshkina T. N., Nosova E. V., Kopotilova A. E., Lipunova G. N., Sadieva L. K., Kopchuk D. S., Slepukhin P. A., Charushin V. N., Valova M. S., Zalesny R., Osmialowski B.
Заглавие : Synthesis and photophysical studies of novel v-shaped 2,3-bis{5-aryl-2-thienyl}(dibenzo[f,h])quinoxalines
Место публикации : Asian journal of organic chemistry. - 2020. - Vol. 9, № 4. - С. 673-681
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): cross-coupling--dibenzo[f,h]quinoxaline--donor-acceptor-donor chromophores--fluorescence--sensors
Аннотация: A series of novel V-shaped luminophores containing electron-withdrawing dibenzo[f,h]quinoxaline core and arylthienyl donor fragments at positions 2 and 3 has been synthesized. The absorption spectra (UV/vis) were recorded in several solvents, whereas emission spectra were recorded in solutions and powders. The solvatochromism as well as halochromism of obtained compounds was also explored. Electronic-structure calculations using quantum-chemistry methods were performed to further analyse experimental results. All characteristics were compared with that of 2,3-bis(arylthienyl)quinoxaline counterparts. The halochromic effect studies showed that upon gradual addition of trifluoroacetic acid (TFA) to the toluene solution of diethylaminophenyl-substituted dibenzo[f,h]quinoxaline chromophore, absorption and emission changed. Observed band shifts were more distinct in the case of mentioned quinoxaline than for other derivatives. All of the (dibenzo[f,h])quinoxaline chromophores exhibited good sensitivity toward nitro-containing explosives with high Stern-Volmer constants up to 57800 M−1, these results are remarkable for such heterocyclic systems.
Найти похожие

Сиглы отделов ЦНБ УрО РАН

  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

Сиглы библиотек институтов и НЦ УрО РАН

© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)