Главная Новые поступления Описание Шлюз Z39.50

Базы данных


Труды сотрудников Института органического синтеза УрО РАН - результаты поиска

Вид поиска

Область поиска
 Найдено в других БД:Каталог книг и продолжающихся изданий (2)Труды сотрудников Института горного дела УрО РАН (1)Публикации Чарушина В.Н. (12)
Формат представления найденных документов:
полныйинформационныйкраткий
Отсортировать найденные документы по:
авторузаглавиюгоду изданиятипу документа
Поисковый запрос: (<.>K=EXPLOSIVES<.>)
Общее количество найденных документов : 16
Показаны документы с 1 по 16
1.
Инвентарный номер: нет.
   
   I-83


   
    Iptycene-Based Fluorescent Sensors for Nitroaromatics and TNT / P. Anzenbacher, Jr. L. Mosca, M. A. Palacios, G. V. Zyryanov, P. Koutnik // Chemistry - A European Journal. - 2012. - Vol.18, №40. - С. 12712-12718. - Bibliogr. : p. 12718 (15 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
EXPLOSIVES -- FLUORESCENCE SPECTROSCOPY -- NANOFIBRES -- SENSORS
Аннотация: Small-molecule fluorescent sensors (1–5) for the recognition of nitroaromatic compounds, such as 2,4-dinitrotoluene and the explosive TNT, were obtained by using a three-step dehydrohalogenation cycloaddition protocol. The interaction of the receptors and nitroaromatics was studied both in solution and in the solid state by using fluorescence spectroscopy and X-ray crystallography, respectively. It is shown that the iptycene receptors 1–5 provide a cavity suitable for binding nitroaromatic compounds in an edge-to-face mode, rather than simple ring-stacking interactions. The results obtained inspired us to develop an inexpensive, reliable and robust sensor for vapour detection of explosives. Polymer nanofibres are particularly suitable for the production of such TNT sensors as they accelerate the mass exchange between the polymer and the vapours of TNT. Quenching of the sensors took place within 1 min compared to 10 min for a glass-slide assay. Hence, the sensor performance can be improved by optimising the matrix material and morphology without resynthesising the sensor moieties

\\\\expert2\\NBO\\Chemistry - A European Journal\\2012. v. 18, N 40. p. 12712.pdf
Найти похожие

2.
Инвентарный номер: нет.
   
   D 47


   
    Detection of nitroaromatic explosives by new D-π-A sensing fluorophores on the basis of the pyrimidine scaffold [Electronic resource] / E. V. Verbitskiy, A. A. Baranova, K. I. Ludovik, M. Z. Shafikov, K. O. Khokhlov, E. M. Cheprakova, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Analytical and Bioanalytical Chemistry. - 2016. - Ahead of Print
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NITROAROMATIC EXPLOSIVES -- PYRIMIDINE SCAFFOLD
Аннотация: A series of D-​π-​A- type dyes based on pyrimidines, bearing various thiophene linkers, have been studied as sensing fluorophores. Fluorescence studies have demonstrated that the emission of all derivs. is sensitive to the presence of nitroarom. explosives, such as 2,​4,​6-​trinitrophenol (PA)​, 2,​4,​6-​trinitrotoluene (TNT)​, and 2,​4-​dinitrotoluene (DNT)​, in their acetonitrile solns. The detection limits of fluorophores to PA, TNT, and DNT proved to be in the range from 5.83 × 10-​6 to 2.38 × 10-​7 mol​/L, 1.70 × 10-​4 to 8.40 × 10-​6 mol​/L, and 8.39 × 10-​5 to 6.87 × 10-​6 mol​/L, resp. The theor. investigation into the quenching mechanism in the presence of fluorophore has been performed. All compds. have shown a good efficiency as sensor materials when tested as elements of the original device <> for detecting nitro-​contg. explosives in vapor phase

\\\\expert2\\nbo\\Analytical and Bioanalytical Chemistry\\2016, Ahead Print.pdf
Найти похожие

3.
Инвентарный номер: нет.
   
   N 52


   
    New 2H-[1,2,3]triazolo[4,5-e][1,2,4]triazolo[1,5-a]pyrimidine derivatives as luminescent fluorophores for detection of nitroaromatic explosives [Electronic resource] / E. V. Verbitskiy, E. B. Gorbunov, A. A. Baranova, K. I. Ludovik, K. O. Khokhlov, E. M. Cheprakova, G. A. Kim, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Tetrahedron. - 2016. - Vol. 72, № 32. - С. 4954-4961
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CARBAZOLE -- NITROAROMATIC EXPLOSIVES -- TRIPHENYLAMINE

\\\\expert2\\NBO\\Tetrahedron\\2016, v. 72 , p. 4954-4961.pdf
Найти похожие

4.
Инвентарный номер: нет.
   
   N 52


   
    New V-shaped push-pull systems based on 4,5-di(hetero)aryl substituted pyrimidines: their synthesis and application to the detection of nitroaromatic explosives. / E. V. Verbitskiy, A. A. Baranova, K. I. Lugovik, K. O. Khokhlov, E. M. Cheprakova, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // ARKIVOC. - 2016. - Vol. III. - С. 360-373. - Bibliogr. : p. 370-373 (50 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PYRIMIDINES -- SYNTHESIS -- NITROAROMATIC EXPLOSIVES

\\\\expert2\\NBO\\ARKIVOC\\2016, p.360-373.pdf
Найти похожие

5.
Инвентарный номер: нет.
   
   N 52


   
    New 4,5-di(hetero)arylpyrimidines as sensing elements for detection of nitroaromatic explosives in vapor phase / E. V. Verbitskiy, A. A. Baranova, K. I. Lugovik, K. O. Khokhlov, E. M. Cheprakova, M. Z. Shafikov, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Dyes and Pigments. - 2016. - Vol. 137. - С. 360-371. - Bibliogr. : p. 370-371 (50 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
4,5-DI(HETERO)ARYLPYRIMIDINES -- NITROAROMATIC EXPLOSIVES -- VAPOR PHASE
Аннотация: A series of D–π–A–π–D type dyes based on pyrimidines, bearing thiophene linkers, have been studied as sensing fluorophores. Fluorescence studies have demonstrated that the emission of all derivatives is sensitive to the presence of 2,4,6-trinitrotoluene (TNT) and other nitroaromatic compounds (NACs), in their acetonitrile solutions. The detection limits of fluorophores to NACs proved to be in the range from 10−4 to 10−6 mol/L. The time-resolved fluorescence measurements and theoretical investigation into the quenching mechanism in the presence of fluorophore has been performed. The two types of sensor prototypes for handheld sniffer «Nitroscan» (Plant «Promautomatika», Ekaterinburg, Russia) on the basis of non-woven dry wipe and spunlace non-woven fabric with various quantities of the most sensitive fluorophore have been fabricated. The reusable, reversible and sensitive response of the designed prototypes to NACs enables one to qualify these compounds as promising fluorescent sensory materials for detection of NACs.

\\\\expert2\\nbo\\Dyes and Pigments\\2016, v. 137, p.360-371.pdf
Найти похожие

6.
Инвентарный номер: нет.
   
   M 65


   
    Microwave-assisted synthesis of 4-(2,2'-bithiophen-5-yl)-5-phenylpyrimidine derivatives as sensors for detection of nitroaromatic explosives = Микроволновый синтез производных 4-(2,2'-битиофенил-5-ил)-5-фенилпиримидина и их применение в качестве сенсоров нитроароматических взрывчатых веществ / E. V. Verbitskiy, E. M. Cheprakova, A. A. Baranova, K. O. Khokhlov, K. I. Ludovik, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Chemistry of Heterocyclic Compounds. - 2016. - Vol. 52, № 11. - С. 904-909. - Bibliogr. : p. 909 (27 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PYRIMIDINE TRIPHENYLAMINE -- NITROAROMATIC EXPLOSIVES -- FLUORESCENCE QUENCHING
Аннотация: A reaction sequence involving microwave-assisted Suzuki cross-coupling steps and bromination with N-bromosuccinimide was used to synthesize 4-{4-[4',5'-bis(4-diphenylaminophenyl)-3'-hexyl-2,2'-bithiophen-5-yl]pyrimidin-5-yl}benzonitrile. The optical properties of the obtained compound were studied to evaluate it for possible applications as a sensor of nitroaromatic compounds in acetonitrile solutions and gas phase

\\\\expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2016, v.52, N 11, p. 904-909.pdf
Найти похожие

7.
Инвентарный номер: нет.
   
   T 44


   
    The portable detector of nitro-explosives in vapor phase with new sensing elements on a base of pyrimidine scaffold / A. A. Baranova, K. O. Khokhlov, R. D. Chuvashov, E. V. Verbitskiy, E. M. Cheprakova, G. L. Rusinov, V. N. Charushin // Journal of Physics: Conference Series. - 2017. - Vol. 830. - P012159[1-6]
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PORTABLE DETECTOR -- NITROEXPLOSIVE -- VAPOR PHASE -- SENSING ELEMENT -- PYRIMIDINE SCAFFOLD -- C(5) MONO(HETEROARYL) -- C(4) MONO(HETEROARYL) -- DI(HETEROARYL) SUBSTITUTED -- PYRIMIDINES -- PYRIMIDINE RING -- VOLATILE INTERFERENT -- NITROSCAN -- TEMPERATURE 293 K TO 298 K
Аннотация: In this paper, the new sensors based on the C(4) or/and C(5) mono(heteroaryl) and di(heteroaryl) substituted pyrimidines are described. The effect of different substituents in pyrimidine ring on the detection limits and selectivity for prepared sensors are explained. The results of detection towards various nitro-explosives and volatile interferents at room temperature with use of the portable detector “Nitroscan” are shown.

\\\\Expert2\\NBO\\Journal of Physics Conference series\\2017 v.830 p.012159.pdf
Найти похожие

8.
Инвентарный номер: нет.
   
   E 97


   
    Extended cavity pyrene-based iptycenes for the turn-off fluorescence detection of RDX and common nitroaromatic explosives / A. F. Khasanov [et al.] // New Journal of Chemistry. - 2017. - Vol. 41, № 6. - P2309-2320
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PYRENE (CHEMICAL) -- FLUORESCENCE -- RDX (CYCLONITE)
Аннотация: Extended cavity pyrene-based iptycenes have been synthesized by using the Diels–Alder reaction between in situ generated dehydropyrenes and anthracene. The photophysical properties and the interaction of these iptycenes with nitro-explosive components were studied both in solution and in the solid state by using fluorescence spectroscopy and X-ray crystallography, respectively. Due to the presence of both the large iptycene cavity and the central pyrene core, an unprecedently high fluorescence-quenching response towards non-aromatic and non-planar 1,3,5-trinitroperhydro-1,3,5-triazine (RDX) has been observed both in solution (with an apparent Stern–Volmer constant value aKSV up to 1.53 × 103 M−1) and in the vapor phase (50–75% fluorescence quenching of the PU films doped with chemosensors). In the case of nitroaromatic explosives, nitrobenzene (NB), 2,4-DNT, TNT, and 2,4,6-trinitrophenol (TNP or picric acid, PA), pyrene-based iptycenes also demonstrate a good fluorescence-quenching response both in solutions (with apparent Stern–Volmer constant values aKSV = 0.4–8.0 × 103 M−1) and in the vapor phase (up to 90% fluorescence quenching of the PU films doped with chemosensors). The “sphere of action” fluorescence quenching model was suggested.

\\\\Expert2\\NBO\\New Journal of Chemistry\\2017 v.41 p.2309-2320.pdf
Найти похожие

9.
Инвентарный номер: нет.
   
   N 52


   
    New 4,5-di(hetero)arylpyrimidines as sensing elements for detection of nitroaromatic explosives in vapor phase / E. V. Verbitskiy, A. A. Baranova, K. I. Lugovik, K. O. Khokhlov, E. M. Cheprakova, M. Z. Shafikov, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Dyes and Pigments. - 2017. - Vol. 137. - P360-371
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
FLUORESCENCE QUENCHING -- NITROAROMATIC EXPLOSIVES -- TRIPHENYLAMINES -- CARBAZOLES -- PYRIMIDINES
Аннотация: A series of D–π–A–π–D type dyes based on pyrimidines, bearing thiophene linkers, have been studied as sensing fluorophores. Fluorescence studies have demonstrated that the emission of all derivatives is sensitive to the presence of 2,4,6-trinitrotoluene (TNT) and other nitroaromatic compounds (NACs), in their acetonitrile solutions. The detection limits of fluorophores to NACs proved to be in the range from 10−4 to 10−6 mol/L. The time-resolved fluorescence measurements and theoretical investigation into the quenching mechanism in the presence of fluorophore has been performed. The two types of sensor prototypes for handheld sniffer «Nitroscan» (Plant «Promautomatika», Ekaterinburg, Russia) on the basis of non-woven dry wipe and spunlace non-woven fabric with various quantities of the most sensitive fluorophore have been fabricated. The reusable, reversible and sensitive response of the designed prototypes to NACs enables one to qualify these compounds as promising fluorescent sensory materials for detection of NACs.

Найти похожие

10.
Инвентарный номер: нет.
   
   D 47


   
    Detection of nitroaromatic explosives by 2-amino-3-ethoxycarbonyl-6-(1-methylindol-3-yl)-5-(4-chlorophenyl)-pyrazine and its derivatives / O. S. Taniya, L. K. Sadieva, I. S. Kovalev, G. V. Zyryanov, D. S. Kopchuk, V. L. Rusinov, O. N. Chupakhin // Современные синтетические методологии для создания лекарственных препаратов и функциональных материалов (MOSM2018): вторая международная научно-практическая конференция : материалы и доклады. - Екатеринбург, 2019. - С. 211
ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

11.
Инвентарный номер: нет.
   


   
    Design of fluorescent sensors based on azaheterocyclic push-pull systems towards nitroaromatic explosives and related compounds: a review / E. V. Verbitskiy, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Dyes and pigments. - 2020. - Vol. 180. - P108414
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NITROAROMATIC EXPLOSIVES -- FLUORESCENCE QUENCHING -- PYRIDINES -- PYRAZINE -- PYRIMIDINES -- TRIAZINES
Аннотация: Highly sensitive and selective detection of nitro containing high energy organic compounds such as picric acid (PA), 2,4,6-trinitrotoluene (TNT) and 2,4-dinitrotoluene (DNT) has become a challenging task due to concerns over national security, criminal investigations and environment protections. Among various known detection methods, fluorescence sensors have gained special attention in recent time. The family of fluorescent sensors based on push-pull systems that incorporate nitrogen heterocycles as an electron-withdrawing group have a growing interest due to their high sensitivity, selectivity and easy tuning. The fluorescent sensors discussed in this review are classified and organized according to used azaheterocyclic scaffold, their functionality and their ability to detect of nitroaromatics by fluorescence quenching.

Найти похожие

12.
Инвентарный номер: нет.
   


   
    Synthesis and photophysical studies of novel v-shaped 2,3-bis{5-aryl-2-thienyl}(dibenzo[f,h])quinoxalines / T. N. Moshkina, E. V. Nosova, A. E. Kopotilova [et al.] // Asian journal of organic chemistry. - 2020. - Vol. 9, № 4. - P673-681
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
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

13.
Инвентарный номер: нет.
   


   
    Computer vision vs. spectrofluorometer-assisted detection of common nitro-explosive components with bola-type PAH-based chemosensors / I. S. Kovalev, L. K. Sadieva, O. S. Taniya [et al.] // RSC Advances. - 2021. - Vol. 11, № 42. - P25850-25857
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Computer vision (CV) algorithms are widely utilized in imaging processing for medical and personal electronics applications. In sensorics CV can provide a great potential to quantitate chemosensors' signals. Here we wish to describe a method for the CV-assisted spectrofluorometer-free detection of common nitro-explosive components, e.g. 2,4-dinitrotoluene (DNT) and 2,4,6-trinitrotoluene (TNT), by using polyaromatic hydrocarbon (PAH, PAH = 1-pyrenyl or 9-anthracenyl) – based bola-type chemosensors. The PAH components of these chemical bolas are able to form stable, bright emissive in a visual wavelength region excimers, which allows their use as extended matrices of the RGB colors after imaging and digital processing. In non-polar solvents, the excimers have poor chemosensing properties, while in aqueous solutions, due to the possible micellar formation, these excimers provide “turn-off” fluorescence detection of DNT and TNT in the sub-nanomolar concentrations. A combination of these PAH-based fluorescent chemosensors with the proposed CV-assisted algorithm offers a fast and convenient approach for on-site, real-time, multi-thread analyte detection without the use of fluorometers. Although we focus on the analysis of nitro-explosives, the presented method is a conceptual work describing a general use of CV for quantitative fluorescence detection of various analytes as a simpler alternative to spectrofluorometer-assisted methods.

Найти похожие

14.
Инвентарный номер: нет.
   


   
    Benzo[de]naphtho[1,8-gh]quinolines: synthesis, photophysical studies and nitro explosives detection / I. L. Nikonov, I. A. Khalymbadzha, L. K. Sadieva [et al.] // Chimica Techno Acta. - 2021. - Vol. 8, № 4. - Ст. 20218415
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BENZO[DE]NAPHTHA [1,8-GH]QUINOLONES -- FLUORESCENCE -- SENSOR -- EXPLOSIVES
Аннотация: A rational synthetic approach to substituted naphtho[1,8-gh]quinolines based on intramolecular cyclization in the presence of potassium in the series of (naphthalen-1-yl)isoquinolines is described. The photophysical properties of the obtained compounds were studied; in particular, fluorescence emission was detected in the range 454-482 nm with a quantum yield of up to 54%. We also calculated the HOMO-LUMO energies and optimized molecular structures for the resulting fluorophores. Based on the results of fluorescence titration, the Stern-Volmer constants (up to 21587 M-1) and the detection limits of nitroanalytes (up to 1.4 ppm) were calculated, confirming the possibility of their use as potential chemosensors for the visual detection of nitro-containing explosives.

Найти похожие

15.
Инвентарный номер: нет.
   


   
    New naphtho[1,8-ef]perimidines: synthesis, fluorescence studies and application for detection of nitroanalytes / I. L. Nikonov, L. K. Sadieva, M. I. Savchuk [et al.] // Chimica Techno Acta. - 2021. - Vol. 8, № 4. - Ст. 20218416
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NAPHTHO[1,8-EF]PERIMIDINES -- FLUORESCENCE -- SENSOR -- EXPLOSIVES
Аннотация: A rational approach to the synthesis of substituted naphtho[1,8-ef]perimidines based on SNH methodology and cyclization reaction in the series of condensed azines with naphthalene substituents was presented. Photophysical properties of the obtained fluorophores were studied, in particular, green fluorescence in the 485–536 nm range with quantum yield up to 32.4% was detected. HOMO-LUMO energy values and distributions for the new compounds were calculated by the DFT method in comparison with nitroanalytes and perylene. Based on the data obtained, as well as on the results of fluorescence titration, the possibility of using the new diazaperylenes as potential chemosensors for the visual detection of nitro-containing explosives was shown.

Найти похожие

16.
Инвентарный номер: нет.
   


   
    Bispyrenylalkane chemosensor for the naked-eye detection of nitro-explosives / I. S. Kovalev, L. K. Sadieva, O. S. Taniya [et al.] // Chimica Techno Acta. - 2021. - Vol. 8, № 2. - P20218209
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DETECTION OF EXPLOSIVES IN AQUEOUS MEDIA -- CHEMICAL SENSORS -- FLUORESCENCE QUENCHING -- PYRENE-BASED FLUOROPHORES
Аннотация: Pyrene-based compounds have a great potential as fluorescent chemosensors for various analytes including common nitroexplosives, such as 2,4,6-trinitrotoluene (TNT). Compounds having two pyrene units in one molecule, such as bispyrenylalkanes, are able to form stable, bright emissive in a visual wavelength region excimers both in non-polar and polar environments. In this work we wish to report that in non-polar solvents the excimer has poor chemosensing properties while in aqueous solutions it provides significant “turn-off” fluorescence response to TNT in the subnanomolar concentrations.

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)
Яндекс.Метрика