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1.

Вид документа : Статья из журнала
Шифр издания : Г/T 44
Автор(ы) : Moshkina T. N., Nosova E. V., Lipunova G. N., Slepukhin P. A., Nikonov I. L., Charushin V. N., Zhilina E. F.
Заглавие : The Rh(III)-catalysed C-H/N-H annulation of 2-thienyl- and 2-phenyl-quinazolin-4(3: H)-ones with diphenylacetylene
Место публикации : New Journal of Chemistry. - 2021. - Vol. 45, № 19. - С. 8456-8466
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A series of 4,5-diphenyl-7H-thieno[2′,3′:3,4]pyrido[2,1-b]quinazolin-7-ones was synthesized via the Rh(III)-catalyzed annulation of 2-thienylquinazolin-4(3H)-ones with diphenylacetylene. 2-Phenylquinazolin-4(3H)-one amide alcoholysis and double C–H functionalization proceeded under the same reaction conditions with the formation of 2,3,7,8-tetraphenyl-1H-benzo[d,e][1,8]-naphthyridine derivatives. All compounds possess fluorescence properties in MeCN and toluene solutions as well as in the solid state. The aggregation induced emission (AIE) properties and the ability to detect Fe3+ cations were evaluated.
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2.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Nosova E. V., Moshkina T. N., Permyakova Ju. V., Lipunova G. N., Charushin V. N.
Заглавие : Synthesys and photophysical properties of 2-(het)arylderivatives of 4-morpholinylquinazolines
Место публикации : Actual problems of organic chemistry and biotechnology. - Екатеринбург, 2020. - С. 281-283
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 4-(4-morpholinyl)quinazolines--cross-coupling--fluorescence
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3.

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
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4.

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.
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5.

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.
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6.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Nosova E. V., Moshkina T. N., Lipunova G. N., Kopchuk D. S., Slepukhin P. A., Baklanova I. V., Charushin V. N.
Заглавие : Synthesis and Photophysical Studies of 2-(Thiophen-2-yl)-4-(morpholin-4-yl) quinazoline Derivatives [Электронный ресурс]
Место публикации : European Journal of Organic Chemistry. - 2016. - № 16. - С. 2876-2881
Систем. требования: http://apps.webofknowledge.com/full
Примечания : 26.10.16
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): photophysics --charge transfe--fluorescence
Аннотация: The synthesis of a series of push-pull aryl and arylethynyl 2-(thiophen-2-yl) quinazoline derivatives is presented. The photophysical properties of the newly generated compounds are also described. Functionalization of the (2-thienyl) quinazoline fluorophore at the 5'-position with aryl and arylethynyl moieties was performed using bromination and subsequent palladium-catalyzed cross-coupling reactions. Optical studies revealed that 4-(diethylamino) phenyl and 4-(diphen-ylamino) phenyl derivatives emit green light upon irradiation, whereas their 4-(9H-carbazol-9-yl) phenyl, methoxyphenyl, thienyl and arylethynyl counterparts are characterized by blue light emission capabilities. The effect of protonation has also been studied, and the ability of some of these molecules to function as colorimetric and luminescent pH sensors has been demonstrated with significant color changes and luminescence switching upon the introduction of acid.
\\\\expert2\\NBO\\European Journal of Organic Chemistry\\2016, №16. p.2876-2881.pdf
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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Verbitskiy E. V., Kvashnin Y. A., Zhilina E. F., Shchepochkin A. V., Rusinov G. L., Chupakhin O. N., Charushin V. N., Baranova A. A., Khokhlov K. O., Chuvashov R. D., Schapov I. E., Yakovleva Y. A., Makarova N. I., Vetrova E. V., Metelitsa A. V.
Заглавие : Synthesis and characterization of linear 1,4-diazine-triphenylamine–based selective chemosensors for recognition of nitroaromatic compounds and aliphatic amines
Место публикации : Dyes and pigments. - 2020. - Vol. 178. - С. 108344
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): aliphatic amines--fluorescence quenching--nitroaromatic compounds--pyrazine--quinoxaline--solvatochromism
Аннотация: Novel 1,4-diazine-based dyes of the D–π–A type, possessing triphenylamine as an electron-donating group, have been developed. Fluorescence studies have demonstrated that emission of these fluorophores is sensitive towards different nitroaromatic compounds and aliphatic amines, both in solutions and in a vapor phase. Moreover, these compounds can be considered as “naked-eye” fluorescent probes for solution polarity because they possess pronounced solvatochromic properties. Therefore, these compounds have to be regarded as potential multifunctional chemosensors for monitoring hazardous organic substances.
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Moshkina T. N., Nosova E. V., Charushin V. N., Lipunova G. N., Valova M. S., Petrusevich E. F., Zalesny R., Osmialowski B.
Заглавие : Substituted 2-(2-hydroxyphenyl)–3H-quinazolin-4-ones and their difluoroboron complexes: Synthesis and photophysical properties
Место публикации : Spectrochimica acta part A: molecular and biomolecular spectroscopy. - 2021. - Vol. 252. - С. 119497
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): esipt--fluorescence--o-ligand--bf2-complex2-(2-hydroxyphenyl)–3h-quinazolin-4-ones
Аннотация: 2-(2-Hydroxyphenyl)–3H-quinazolin-4-ones with diverse substituents at phenol ring and their six-membered difluoroboron complexes have been synthesized via few-stage approach. The photophysical properties of target compounds have been investigated in two solvents as well as in the solid state. The nature of substituents and substitution point in the phenol moiety of ligands and resulting BF2-complexes on the photophysical properties of dyes have been explored. The complex bearing two t-Bu groups proved to be the most emissive in solid state, whereas its 5-methoxy and 4-diethylamino counterparts possess strong emission in toluene solution. The dyes exhibited large Stokes shifts which was attributed to excited state intramolecular proton transfer (ESIPT). Additionally, fluorescence of quinazolinones in the mixture of THF/water was studied. All ligands demonstrated emission enhancement with increase of water fraction which was due to aggregation induced emission.
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kovalev I. S., Sadieva L. K., Taniya O. S., Yurk V. M., Minin A. S., Kopchuk D. S., Zyryanov G. V., Ulomsky E. N., Rusinov V. L., Charushin V. N., Chupakhin O. N.
Заглавие : Pyrene-based lipophilic/biphilic chemosensors for the fluorescence "turn-off" detection of nitroanalytes in aqueous media
Место публикации : AIP Conference Proceedings. - 2021. - Vol. 2388, № 1. - Ст.030015
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Two approaches towards “turn off” fluorescence detection of nitroanalytes (dinitro-ortho-cresol (DNOC), 2,4,6-trinitrotoluene (TNT) and Riamilovir (Triazavirin ®) are reported such as by tuning the chemosensors structure or by changing the environment. In both cases the great response was achieved with Stern-Volmer quenching constants (KSV) as high as 2.28–3.14 × 104 M−1 (for structure modification approach) and 4.67 × 105 M−1 (for changing of environment approach).
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mohammed M. S. I., Kovalev I. S., Slovesnova N. V., Sadieva L. K., Platonov V. A., Novikov A. S., Santra S., Morozova J. E., Zyryanov G. V., Charushin V. N., Ranu B. C.
Заглавие : Polyaromatic hydrocarbon (PAH)-based aza-POPOPS: synthesis, photophysical studies, and nitroanalyte sensing abilities
Место публикации : International journal of molecular sciences. - 2023. - Vol. 24, № 12. - С. 10084
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): aza-popops--click reactions--chemosensors
Аннотация: 1,4-Bis(5-phenyl-2-oxazolyl)benzene (POPOP) is a common scintillation fluorescent laser dye. In this manuscript, the synthesis of 2-Ar-5-(4-(4-Ar'-1H-1,2,3-triazol-1-yl)phenyl)-1,3,4-oxadiazoles (Ar, Ar' = Ph, naphtalenyl-2, pyrenyl-1, triphenilenyl-2), as PAH-based aza-analogues of POPOP, by means of Cu-catalyzed click reaction between 2-(4-azidophenyl)-5-Ar-1,3,4-oxadiazole and terminal ethynyl-substituted PAHs is reported. An investigation of the photophysical properties of the obtained products was carried out, and their sensory response to nitroanalytes was evaluated. In the case of pyrenyl-1-substituted aza-POPOP, dramatic fluorescence quenching by nitroanalytes was observed.
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