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Демидовские премии
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История Урала
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Книжная коллекция Шубиных
Труды Института высокотемпературной электрохимии УрО РАН
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Труды сотрудников Института горного дела УрО РАН
Труды сотрудников Института органического синтеза УрО РАН
Труды сотрудников Института теплофизики УрО РАН
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Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
Публикации Чарушина В.Н.
Каталог библиотеки ИЭРиЖ УрО РАН
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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dokuchaeva A. A., Vladimirov S. V., Borodin V. P., Karpova E. V., Vaver A. A., Shiliaev G. E., Chebochakov D. S., Kuznetsov V. A., Surovtsev N. V., Adichtchev S. V., Malikov A. G., Gulov M. A., Zhuravleva I. Y.
Заглавие : Influence of single-wall carbon nanotube suspension on the mechanical properties of polymeric films and electrospun scaffolds
Место публикации : International journal of molecular sciences. - 2023. - Vol. 24, № 13. - С. 11092
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): bioengineering--carbon nanotubes--tubular scaffolds
Аннотация: Carbon nanotubes (CNTs) are used in applications ranging from electrical engineering to medical device manufacturing. It is well known that the addition of nanotubes can influence the mechanical properties of various industrial materials, including plastics. Electrospinning is a popular method for fabricating nanomaterials, widely suggested for polymer scaffold manufacturing. In this study, we aimed to describe the influence of single-walled carbon nanotube (SWCNT) suspensions on polymeric poured films and electrospun scaffolds and to investigate their structural and mechanical properties obtained from various compositions. To obtain films and electrospun scaffolds of 8 mm diameter, we used poly-ε-caprolactone (PCL) and poly(cyclohexene carbonate) (PCHC) solutions containing several mass fractions of SWCNT. The samples were characterized using tensile tests, atomic force and scanning electronic microscopy (AFM and SEM). All the studied SWCNT concentrations were shown to decrease the extensibility and strength of electrospun scaffolds, so SWCNT use was considered unsuitable for this technique. The 0.01% mass fraction of SWCNT in PCL films increased the polymer strength, while fractions of 0.03% and more significantly decreased the polymer strength and extensibility compared to the undoped polymer. The PHCH polymeric films showed a similar behavior with an extremum at 0.02% concentration for strength at break.
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2.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Лосева Н. В., Эдилова, Юлия Олеговна, Салоутин, Виктор Иванович, Бажин, Денис Назарович, Абржина, Лариса Леонидовна
Заглавие : Синтез енаминокетонов на основе фторсодержащих алкоксиенонов
Место публикации : Система управления экологической безопасностью : сборник трудов XVII международной научно-практической конференции, посвященный различным теоретическим и практическим аспектам экологической безопасности. - Екатеринбург, 2023. - С. 237-243
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 1,3-Diketenes are promising polyfunctional building blocks that can be used to obtain complex aliphatic, aromatic, and heterocyclic structures. The presence of fluorinated carbon radicals in the alkoxyenone molecule significantly affects its properties and reactivity, which makes it possible to use these substances in the development of green chemistry and increases the environmental safety of synthesis processes.
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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ivoilova A. V., Malakhova N. A., Mozharovskaia P. N., Nikiforova A., Kozitsina A., Ivanova A., Rusinov V. L., Tumashov A. A.
Заглавие : Study of different carbonaceous materials as modifiers of screen-printed carbon electrodes for the triazid as potential antiviral drug
Место публикации : Electroanalysis. - 2022. - Vol. 34, № 11. - С. 1745-1755
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: In this work a comparative study of Screen-Printed Carbon Electrodes (SPCE) – bare and modified by drop casting with carbonaceous nanomaterials (CNMs) as Multi Walled Carbon Nanotubes (MWCNT), Carbon Black and Functionalized Carbon Black for voltammetric determination of 5-methyl-6-nitro-7-oxo-4,7-dihydro-1,2,4-triazolo[1,5-a]pyrimidinide l-arginine monohydrate (Triazid) as a potential drug with a broad spectrum of antiviral activity is reported. Bare SPCE and CNMs modified SPCE (SPCE/CNMs) have been characterized morphologically by SEM and electrochemically by cyclic voltammetry/electrochemical impedance spectroscopy with [Fe(CN)6]4−/3− as redox probe. Significant improvement of electrochemical performances is achieved with SPCE/CNMs compared with the bare SPCE. Among SPCE/CNMs studied SPCE modified with MWCNT (SPCE/CNT) is characterized by the best combination of electrochemical properties and electroanalytical performance towards TD. The linear dynamic range is 25–200 mg L−1 (R2=0.9975) with the limit of detection – 2.8 mg L−1 Triazid using SPCE/CNT and Square-Wave Voltammetry technique. The developed sensor was successfully used for Triazid determination in the Pharmaceutical Substance “TRIAZID”. The results achieved with SPCE/CNMs after chemical binding of dissolved oxygen in 0.04 M Britton-Robinson buffer+0.04 M Na2SO3 (pH 7.2±0.2) are very useful for further development of cost-effective and time-consuming pharmaceutical routine assay.
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chupakhin O. N., Musikhina A. A, Utepova I. A., Charushin V. N., Rempel A. A., Pryakhina V. I., Zyryanova E. Y., Pershina S. V., Yolshina L. A., Vovkotrub E. G.
Заглавие : Synthesis and properties of azines functionalized graphene with extremely high adsorptive ability to Eu3+ ions
Место публикации : Flatchem. - 2022. - Vol. 33. - С. 100348
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: In this work, a versatile synthetic protocol for obtaining of new promising carbon materials based on the C–C coupling of graphenide lithium species with azaaromatic compounds (1,10-phenanthroline, phenyl-1,2,5-oxadiazolo[3,4-b]pyrazine) has been suggested. It was shown that more electrophilic oxadiazolopyrazine gave the product with high degree of graphene functionalization and demonstrated non-isomorphic properties. At the same time, phenanthrolinyl graphene has less functionalization degree due to a lower electrophilicity of azine. However, the large size of pores between organic residues in phenanthrolinyl graphene allows adsorbing almost 10% of Eu3+. The mesurment of adsorption isotherm showed an extremely high affinity of phenanthrolinylgraphene to Eu (III) ions in netural or alkaline conditions, and the obtained hybrid material could work at least 5 sorption/desorption cycles. The structures of azine-graphene dyads were verified by complex of modern physicochemical analyses methods (the Raman spectroscopy, FTIR, XPS, SEM, EDS and TGA analyses).
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5.

Вид документа : Статья из журнала
Шифр издания : Г/S 98
Автор(ы) : Bakhteeva I. A., Medvedeva I. V., Byzov I. V., Konev A. S., Zhakov S. V., Uimin M. A., Demin A. M., Murzakaev A. M., Medvedeva O. M.
Заглавие : Synthesis of Fe@C nanoparticles containing sulfo groups on their surfaces and study of their aggregation behavior in aqueous media
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 4. - С. 722-731
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): magnetic nanoparticles--iron-carbon--benzenesulfonic acid--ir spectroscopy
Аннотация: Magnetic iron nanoparticles (MNPs) encapsulated in a carbon shells and containing sulfo groups on the surface (Fe@C-SO3H) were synthesized. The aggregative stability of aqueous suspensions of the Fe@C-SO3H nanoparticles was studied in solutions of bovine serum albumin and calcium chloride and in phosphate-buffered saline, which simulate blood plasma. It is shown that the Fe@C-SO3H particles practically do not aggregate in the phosphate buffer saline for a long time (several days). On the contrary, MNPs encapsulated in a protein shells using ultrasonic treatment form aggregates up to 110–120 nm in size under these conditions. Suspensions of the Fe@C-SO3H particles are stable in aqueous solutions of calcium chloride in the range of the solid phase concentration between 0.05 and 0.10 g L−1. The results obtained indicate the possibility of using the functionalized Fe@C-SO3H nanoparticles in vitro experiments in biological media.
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6.

Вид документа : Статья из журнала
Шифр издания : Г/R 32
Автор(ы) : Ivoilova A. V., Tsmokalyuk A. N., Mozharovskaia P., Kozitsina A. N., Ivanova A. V., Rusinov V. L., Mikhalchenko L. V., Leonova M., Lalov A.
Заглавие : Redox conversions of 5-methyl-6-nitro-7-oxo-4,7-dihydro-1,2,4triazolo[1,5-a]pyrimidinide l-arginine monohydrate as a promising antiviral drug
Место публикации : Molecules. - 2021. - Т. 26, № 16. - Ст.5087
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): nitro-1,2,4-triazolo[1,5a]pyrimidines--triazid--nitro group transformations--nitroaromatic compounds
Аннотация: This article presents the results of a study of electrochemical transformations in aqueous and aprotic media of 5-methyl-6-nitro-7-oxo-4,7-dihydro-1,2,4-triazolo[1,5-a]pyrimidinide l-arginine monohydrate (1a, Triazid) obtained by electrochemical methods and ESR spectroscopy. The effect of pH on the current and the reduction potential of 1a in an aqueous Britton–Robinson buffer solution was studied. It was found that 1a is irreversibly reduced in aqueous acidic media on a glassy carbon electrode in one stage with the participation of six electrons and the formation of 5-methyl-6-amino-7-oxo-1,2,4-triazolo[1,5-a]pyrimidin. The electroreduction of 1a in DMF on a background of tetrabutylammonium salts proceeds in two stages, controlled by the kinetics of second-order reactions. In the first stage, the reduction of 1a is accompanied by protonation by the initial compound of the basic intermediate products formed in the electrode reaction (self-protonation mechanism). The second quasi-reversible stage of the electroreduction 1a corresponds to the formation of a dianion radical upon the reduction of the heterocyclic anion 5-methyl-6-nitro-7-oxo-4,7-dihydro-1,2,4-triazolo[1,5-a]pyrimidin, which is formed upon the potentials of the first peak. The ESR spectrum of the radical dianion was recorded upon electroreduction of Triazid in the presence of Bu4NOH. The effect of the formation of ion pairs on the reversibility of the second peak of the 1a transformation is shown. A change in the rate and regioselectivity of the protonation of the dianion radical in the presence of Na+ and Li+ ions is assumed. The results of studying the electroreduction of 1a by ESR spectroscopy with a TEMPO trap make it possible to assume the simultaneous formation of both a nitroxyl radical and a radical with the spin density localized on the nitrogen at the 4 position of the six-membered ring
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7.

Вид документа : Статья из журнала
Шифр издания : Г/A 22
Автор(ы) : Puzyrev I. S., Andreikov E. I., Osipova V. A., Zakharova G. S., Podval'naya N. V.
Заглавие : Adsorption properties of mesoporous carbon synthesized by pyrolysis of zinc glycerolate
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 5. - С. 805-810
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Mesoporous carbon of lamellar morphology was synthesized by the thermal decomposition of zinc glycerolate in an inert atmosphere followed by the removal of zinc oxide from the ZnO/C composite. The obtained material was characterized by scanning electron microscopy, Raman spectroscopy, and low-temperature adsorption of nitrogen. Mesoporous carbon is remarkable for a high adsorption rate of methylene blue dye from aqueous solutions with the maximum adsorption capacity toward the dye equal to 1680 mg g−1.
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Evseev M. E., Kholmogorova A. S., Neudachina L. K., Pestov A. V., Puzyrev I. S., Osipova V. A., Adamova L. V.
Заглавие : N-Substituted-3-aminopropylsilsesquioxanes: synthesis, physicochemical properties, and application
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 6. - С. 1154-1160
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): silsesquioxanes--sol-gel--carbon paste electrodes--rubeanic acid--determination of silver(i)
Аннотация: Synthesis and study of the physicochemical properties of silsesquioxanes modified with 3-aminopropyl, 2-aminoethyl-3-aminopropyl, and dithiooxamide groups was carried out. The obtained sorbents were characterized by thermal stability, porosity, and a high degree of functionalization; the concentration of groups grafted to the particle surface reached 2.80 mmol g−1. Modified silsesquioxanes were used as an electroactive substance for the development of indicator carbon paste electrodes (CPEs). When using a CPE with a 5% dithiooxamidated silsesquioxane content, the conditions selected for potentiometric titration of aqueous solutions containing silverI were pH 3–4, the titrant was potassium iodide. The designed sensor was successfully tested by analyzing a standard sample and a drug for silver ion content.
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gabov I. S., Kuznetsov V. A., Puzyrev I. S., Pestov A. V.
Заглавие : Addition of the oxirane derivatives to CO2 catalyzed by Lewis bases under mild conditions
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 6. - С. 1118-1123
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): cyclic carbonates--carbon dioxide--lewis bases--quantum chemical calculations
Аннотация: The addition of the oxirane derivatives to CO2 was found to occur without Lewis acid involvement but requires the presence of the Lewis base. The reaction was carried out at atmospheric pressure by CO2 bubbling through the starting ether in the presence of a source of halide anion or trichloroacetate anion, which provides the formation of ethylenecarbonate derivatives in preparative amounts. The reactivity of halide anions in the addition of the studied oxirane derivatives to CO2 decreases in the order I− Br− Cl− F− Cl3CCOO−. The quantum chemical calculations of the reaction of CO2 with epichlorohydrin show that the reaction consists of consecutive processes of nucleophilic addition and nucleophilic ipso-substitution, which explains the catalytic effect of the Lewis bases and the order of their activity.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Charushin V. N., Titova Y. A., Milaeva E. R.
Заглавие : Chemical elements in medicine
Место публикации : Herald of the Russian academy of sciences. - 2020. - Vol. 90, № 2. - С. 229-238
Ключевые слова (''Своб.индексиров.''): beta-lactam antibiotics--boron neutron capture therapy--fluoroquinolones--heterocycles
Аннотация: A brief review of chemical elements, compounds from which find application in medicine, ranging from the commonly occurring organogenic elements (carbon, hydrogen, nitrogen, oxygen, sulfur, and phosphorus), composing the structure of proteins and nucleic acids of the cells of living organisms and determining the genetic transmission, to native rarely encountered organic fluorine compounds, synthetic derivatives of which have become firmly ingrained in the arsenal of modern pharmaceutical drugs, is given. Strong emphasis is put on metalloproteins, which play a significant role in the biochemistry of vitally essential processes, as well as metal compounds that are widely used in medicine. Of particular importance are the chemical elements and the isotopes, compounds of which are employed in nuclear medicine for diagnostics and treatment of a wide range of diseases, oncological and cardiovascular in particular.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Murashkevich A. N., Alisienok O. A., Novik E. S., Titova Y. A., Fedorova O. V., Rusinov G. L., Charushin V. N.
Заглавие : Synthesis and physicochemical and catalytic properties of composites in the Sio2–Zro2 system
Место публикации : Inorganic materials. - 2020. - Vol. 56, № 4. - С. 430-436
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): acid-base properties--catalysis--composite--silica--specific surface area--zirconia
Аннотация: Using coprecipitation, a sol–sol method, and molecular layering, we have synthesized SiO2–ZrO2 composites with SiO2 : ZrO2 ratios from 1 : 1 to 9 : 1 and a large specific surface area, which increases with growth silicon-containing component concentration. Using adsorption of Hammett indicators, we have assessed the concentration of acid–base centers in the pK range 1.3–9.6, which has been shown to vary from 68 to 160 μmol/g. Elemental analysis and IR spectroscopy data have demonstrated the presence of not only water but also nitrate ions and carbon dioxide on the surface of the samples. It has been shown that the use of nanoparticulate SiO2–ZrO2 oxides as heterogeneous catalysts—promoters for (2S,4R)-4-hydroxyprolyl-(S)-1-phenylethylamine trifluoroacetate, a chiral inducer in the asymmetric Biginelli reaction, makes it possible to raise ee (enantiomeric excess) from 39 to 68% and the reaction yield from 29 to 55%.
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12.

Вид документа : Статья из сборника (однотомник)
Шифр издания : 24/Т 42
Автор(ы) : Привар Ю. О., Братская С. Ю., Азарова Ю. А., Нестеров Д. В., Малахова И. А., Иванников С. И., Пестов А. В.
Заглавие : Тиокарбамоилированные производные полиаминов для сорбционного извлечения золота, серебра и ртути из растворов тиосульфатного выщелачивания
Место публикации : Природные опасности, современные экологические риски и устойчивость экосистем: VII Дружининские чтения: материалы Всероссийской научной конференции с международным участием. - Хабаровск: ОмегаПресс, 2018. - С. 75-79
ББК : 24
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: We have suggested a one-step method for the synthesis of thi-ocarbamoyl derivatives of polyallylamine (TСPAA) and polyaminostyrene (TСPAS) in the eutectic melt thiourea/ammonium thiocyanate, that is more safe and simple in comparison with the known method of functionalization using carbon disulfide. The resulting derivatives are insoluble and can be used as sor-bents without additional cross-linking. Sorption properties of TCPAA and TCPAS toward gold, silver and mercury ions have been studied in solutions of ammonia-thiosulfate leaching of gold and silver-containing sludge of Chalgan experimental workshop, which are also contaminated with mercury. It was shown that both TCPAA and TCPAS are efficient sorbents for silver, while ef-fective recovery of gold and mercury is achieved only with low- and medium-substituted TCPAA.
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13.

Вид документа : Статья из журнала
Шифр издания : 24/T 60
Автор(ы) : Zakharova G. S., Fattakhova Z. A., Ottmann A., Moller L., Thauer E., Klingeler R., Andreikov E. I., Puzyrev I. S., Zhu Q.
Заглавие : TIO2/C nanocomposites prepared by thermal annealing of titanium glycerolate as anode materials for lithium-ion batteries
Место публикации : Journal of materials science. - 2018. - Vol. 53, № 17. - С. 12244-12253
ББК : 24
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: TiO2/C nanocomposites have been synthesized by developing a facile route based on the annealing of titanium glycerolate in inert atmosphere at 250–850 °C. X-ray diffraction studies reveal that the annealing temperature determines the crystal structure of the TiO2 phase in the compounds, which can be amorphous, anatase, and rutile. In contrast, the nanosized rod-like morphology which to a certain extent is predefined by the titanium glycerolate precursor does not depend on the annealing temperature. The carbon content of the TiO2/C composites amounts to 16–29 wt% and shows up, e.g., in the characteristic Raman D and G bands. Anatase-structured TiO2/C, which is obtained at 600 °C, exhibits the best electrochemical performance among the studied materials. Without the addition of carbon black, it reaches an initial specific discharge capacity of 378 mA h g−1 at 100 mA g−1 and exhibits excellent rate capability with a capacity of 186 mA h g−1 at 1000 mA g−1.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Андрейков Е. И., Кабак, Александр Сергеевич, Бейлина Н. Ю., Мишкин С. И.
Заглавие : Исследование рециклинга углеродных волокон путем термического сольволиза полимерных композиционных материалов с применением каменноугольного пека
Место публикации : Химия в интересах устойчивого развития. - 2018. - Т. 26, № 6. - С. 571-576
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): рециклинг углеродных волокон--термический сольволиз--полимерные композиционные материалы--каменноугольный пек--coal tar pitch--recycling--carbon fibres--thermal solvolysis--fibre-reinforced polymers
Аннотация: Исследован процесс рециклинга углеродных волокон (УВ) путем термического сольволиза полимерных композиционных материалов в среде каменноугольного пека в интервале температур 320-400 °С. Изучено влияние термообработки в среде каменноугольного пека на свойства выделенных рециклингом УВ. Представлены результаты исследования методом растровой электронной микроскопии и механических испытаний выделенных УВ в сравнении с исходными УВ, используемыми для создания полимерных композиционных материалов.
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15.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Filyakova V. I., Slepukhin P. A., Boltacheva N. S., Letova E. B., Charushin V. N.
Заглавие : Synthesis of podands modified with thiosemicarbazide and fluoroalkyl(hydroxy)pyrazoline fragments
Место публикации : Russian Journal of General Chemistry. - 2017. - Vol. 87, № 5. - С. 957-962
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): podandes--x-ray diffraction analysis --acetic acid--organic acids
Аннотация: 1,8-Bis(diisothiosemicarbazido)-3,6-dioxaoctane have been synthesized by subsequent treatment of 2,2 -(ethylenedioxy)bisethylamine with carbon disulfide, sodium chloroacetate, and hydrazine hydrate. 1,8-Bis- (diisothiosemicarbazido)-3,6-dioxaoctane has reacted with lithium 1,1-difluoropenta-2,4-dionate in glacial acetic acid to yield 1,8-bis[5R*,5 R*(5-hydroxy-5-difluoromethyl-4,5-dihydro-3-methyl-1H-pyrazol-1-yl)-1-carbothioamido]-3,6-dioxaoctane. The molecular and crystal structure of the product has been determined by X-ray diffraction analysis.
\\\\Expert2\\NBO\\Russian Journal of General Chemistry\\2017 V 87 P957.pdf
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16.

Вид документа : Статья из журнала
Шифр издания : 54/P 80
Автор(ы) : Gorbunova T. I., Subbotina J.O., Saloutin V. I., Chupakhin O. N.
Заглавие : Polychlorinated biphenyls: Correlation between experimental data and quantum-chemical simulation [Электронный ресурс]
Место публикации : Russian Journal of General Chemistry. - 2014. - Vol.84, №3. - С. 486-495
Примечания : Bibliogr. : p. 494-495 (43 ref.). - 12.08.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): polychlorinated biphenyls--sovol mixture --nucleophilic substitution
Аннотация: In order to comprehend the data on reactivity of polychlorinated biphenyls of the Sovol mixture in nucleophilic substitution reactions we have performed quantum-chemical simulation using the RB3LYP\6-31G(d) gas phase approximation. Using the "Atoms-in-Molecules" approach, we have computed charges on the biphenyl carbon atoms adjacent to chlorine; furthermore, absolute chemical hardness and global electrophilicity index have been determined for the studied chlorobiphenyls. The calculated descriptors have been correlated with experimentally determined reactivity of the biphenyls in the hard acid-hard base nucleophilic reactions. The higher reactivity of more chlorinated substrates has been confirmed
\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2014, V. 84, N 3, p. 486–495.pdf
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17.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Gorbunova T. I., Subbotina J.O., Saloutin V. I., Chupakhin O. N.
Заглавие : Reactivity of polychlorinated biphenyls in nucleophilic and electrophilic substitutions [Электронный ресурс]
Место публикации : Journal of Hazardous Materials. - 2014. - Vol.278. - С. 491-499
Систем. требования: http://www.scopus.com/record/display.url?eid=2-s2.0-84903835075&origin=resultslist&sort=plf-f&src=s&st1=Chupakhin&nlo=1&nlr=20&nls=count-f&sid=6770215A4AC178071D5EE516B2A45BB7.53bsOu7mi7A1NSY7fPJf1g%3a130&sot=anl&sdt=cl&cluster=scopubyr%2c%222014%22%2ct&sl=38&s=AU-ID%28%22Chupakhin%2c+Oleg+N.%22+7006259116%29&relpos=0&relpos=0&citeCnt=0&searchTerm=AU-ID%28%5C%26quot%3BChupakhin%2C+Oleg+N.%5C%26quot%3B+7006259116%29+AND+%28+LIMIT-TO%28PUBYEAR%2C2014%29+%29+
Примечания : Bibliogr. : p. 498-499 (58 ref.). - 12.08.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): congeners--descriptors--electrophilic substitution
Аннотация: To explain the chemical reactivity of polychlorinated biphenyls in nucleophilic (SN) and electrophilic (SE) substitutions, quantum chemical calculations were carried out at the B3LYP/6-31G(d) level of the Density Functional Theory in gas phase. Carbon atomic charges in biphenyl structure were calculated by the Atoms-in-Molecules method. Chemical hardness and global electrophilicity index parameters were determined for congeners. A comparison of calculated descriptors and experimental data for congener reactivity in the SN and SE reactions was made. It is shown that interactions in the SN mechanism are reactions of the hard acid-hard base type, these are the most effective in case of highly chlorinated substrates. To explain the congener reactivity in the SE reactions, correct descriptors were not established. The obtained results can be used to carry out chemical transformations of the polychlorinated biphenyls in order to prepare them for microbiological destruction or preservation
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18.

Вид документа : Статья из журнала
Шифр издания : 54/C 21
Автор(ы) : Safronov A. P., Kurlyandskaya G. V., Chlenova A. A., Kuznetsov M. V., Bazhin D. N., Beketov I. V., Sanchez-Ilarduya M. B., Martinez-Amesti A.
Заглавие : Carbon deposition from aromatic solvents onto active intact 3d metal surface at ambient conditions
Место публикации : Langmuir. - 2014. - Vol. 30, № 11. - С. 3243-3253
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): carbon deposition--aromatic solvents --ambient conditions
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19.

Вид документа : Статья из журнала
Шифр издания : 54/M 78
Автор(ы) : Pestov A. V., Puzyrev I. S., Mechaev A., Vichuzhanin D. I., Matafonov P. P.
Заглавие : Modification of adhesive materials based on epoxy oligomers with fluorinated organic compounds [Электронный ресурс]
Место публикации : Russian Journal of Applied Chemistry. - 2014. - Vol.87, №4. - С. 474-479
Систем. требования: http://download.springer.com/static/pdf/757/art%253A10.1134%252FS10704272140400132.pdf?auth66=1408082246_7ebb99db1cfb087d97628a0565d0024b&ext=.pdf
Примечания : Bibliogr. : p. 478-479 (48 ref.). - 13.08.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): thermal analysis--organic derivatives --epoxy resins
Аннотация: N-Containing perfluoropentanoic acid derivatives were used as modifying additives to commercial epoxy resins. As shown by differential thermal analysis, the fluorinated organic derivatives exhibit catalytic activity in curing of epoxy resins. The following characteristics of the adhesive compounds in the cured state were determined: degree of swelling, gel fraction content, ultimate shear strength of the adhesive joint, adhesion to low-carbon St.3 steel and AMg-6 aluminum-magnesium alloy, and corrosion-protective properties with respect to these materials
\\\\expert2\\nbo\\Russian Journal of Applied Chemistry\\2014, v. 87, N 4, p.474-479.pdf
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20.

Вид документа : Статья из журнала
Шифр издания : 54
Автор(ы) : Gorbunov E. B., Novikova R. K., Plekhanov P. V., Slepukhin P. A., Rusinov G. L., Rusinov V. L., Charushin V. N., Chupakhin O. N.
Заглавие : 2-Azido-5-nitropyrimidine: Synthesis, Molecular Structure, and Reactions with N-, O-, and S-Nucleophiles
Место публикации : Chemistry of Heterocyclic Compounds. - 2013. - Vol.49, №5. - С. 765-775
Примечания : Библиогр.: с. 775 (13 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): synthesis--2-azido-5-nitropyrimidine--azido-tetrazole tautomerism
Аннотация: We describe the synthesis of 2-azido-5-nitropyrimidine and its azido-tetrazole tautomerism in various solvents and in the crystalline state. It was established that on interacting with N-nucleophiles the attack occurred at the C-2 carbon atom. The O- and S-nucleophiles attacked C-4 position of pyrimidine ring, resulting in tetrazole ring closure
\\\\expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2013, v.49, N 5, p. 765-775.pdf
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