Центральная Научная Библиотека УрО РАН

Инвентарный номер: нет.

   K 48

    Kirichenko, V. E.
    Gas chromatography mass spectrometry of perfluoroacyl derivatives of alkane thiols [Text] / V. E. Kirichenko, O. A. Osipova // Journal of Analytical Chemistry. - 1996. - Vol. 51, N 11. - P1061-1063

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The electron-impact mass spectra of trifluoroacetyl, pentafluoropropionyl, heptafluorobutyryl, and perfluoropentanoyl derivatives of lower C-1-C-6 alkane thiols are studied for the first time, and fragmentation patterns are determined

Найти похожие

Инвентарный номер: нет.

   O-84

    Osipova, O. A.
    Determination of lower alkylmercaptans by reaction gas-liquid-chromatography [Text] / O. A. Osipova, V. E. Kirichenko, K. I. Pashkevich // Journal of Analytical Chemistry. - 1995. - Vol. 50, N 8. - P781-784

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   C 20


    Capillary chromatography of polyfluorinated carboxylic estes [Electronic resource] / E. P. Promyshlennikova, V. E. Kirichenko, K. I. Pashkevich, D. N. Grigoreva, R. V. Golovina // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1991. - Vol. 40, N 8. - P1541-1545

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1991, 40 (8), 1541.pdf
Найти похожие

Инвентарный номер: нет.

   П 26

    Первова, М. Г.
    Определение хлоруксусных кислот в питьевой воде методом реакционной газожидкостной хроматографии [] = Determination of Chloroacetic Acids in Drinking Water by Reaction Gas Chromatography / М. Г. Первова, В. Е. Кириченко, К. И. Пашкевич // Журнал аналитической химии. - 2002. - Т. 57, N 4. - 388-392: схем. - Библиогр. : с. 391-392 (20 назв.) . - ISSN 0044-4502

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Разработана методика определения хлорированных уксусных кислот в питьевой воде, основанная на извлечении методом твердофазной экстракции, переведении хлоруксусных кислот в их трифторэтиловые эфиры, разделении и определении методом газожидкостной хроматографии с электронозахватным детектором. Оптимизированы условия проведения реакции этерификации. Методика применена для анализа образцов питьевой воды

Найти похожие

Инвентарный номер: нет.

   Г 13


    Газожидкостная хроматография сложных эфиров предельных фторированных карбоновых кислот. Сообщение 1. Закономерности удерживания в гомологических рядах [] = Gas-Liquid chromatography of saturated fluorinated carboxilic-acid esters. 1. Retention in homologous series / Е. П. Промышленникова, В. Е. Кириченко, К. И. Пашкевич, Д. Н. Григорьева, Р. В. Головня // Изв. АН СССР. Сер. Химическая. - 1991. - N 2. - С. 418-425 . - ISSN 0002-3353

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   Г 13


    Газожидкостная хроматография сложных эфиров предельных фторированных карбоновых кислот [] = Gas-liquid chromatography of esters of saturated fluorinated carboxilic-acid / Е. П. Промышленникова, В. Е. Кириченко, К. И. Пашкевич, Д. Н. Григорьева, Р. В. Головня // Изв. АН СССР. Сер. Химическая. - 1991. - N 3. - С. 629-634 . - ISSN 0002-3353

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   К 43

    Кириченко, В. Е.
    Газожидкостная хроматография тиоловых эфиров перфторкарбоновых кислот. Сообщ. 1. Закономерности удерживания [] = Gas-liquid chromatography of thioesters of perfluorocarboxylic acids. 1.Characteristics of retention / В. Е. Кириченко, В. Е. Кириченко, О. А. Осипова, К. И. Пашкевич // Изв. АН. Сер. Химическая. - 1997. - N 5. - С. 984-986 . - ISSN 0002-3353

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   О-74

    Осипова, О. А.
    Газожидкостная хроматография тиоловых эфиров перфторкарбоновых кислот. Сообщ. 2. Сорбционные характеристики [] = Gas-liquid chromatography of perfluorocarboxylic thioesters. 2.Sorption characteristics / О. А. Осипова, В. Е. Кириченко, К. И. Пашкевич // Изв. АН. Сер. Химическая. - 1997. - N 6. - С. 1165-1168 . - ISSN 0002-3353

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

Найти похожие

Инвентарный номер: нет.

   О-62


    Определение карбонильных соединений в питьевой воде методом газовой хроматографии в виде пентафторфенилгидразонов [] = The determination of carbonyls compounds in drinking water by pentafluorophenylhidrazine derivatization and gas chromatography / В. Е. Кириченко, М. Г. Первова, Д. Л. Чижов, А. С. Назаров // Аналитика и контроль. - 2003. - Т. 7, N 3. - 248-255: табл., граф. - Библиогр. : с. 254-255 (33 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Предложена методика определения карбонильных соединений в водных средах, сочетающая перевод их в пентафторфенилгидразоны, экстракцию толуолом и газохроматографический анализ с электронозахватным детектором. Проведено масс-спектрометрическое исследование пентафторфенилгидразонов альдегидов и кетонов

Найти похожие

10.

Инвентарный номер: нет.

   Х 94


    Хромато-масс-спектрометрическое исследование 2-аминоэтоксипроизводных полихлорированных бифенилов [] = Gas chromatography - mass-spectrometry of 2-aminoethoxyderivatives of polychlorinated biphenyls / В. Е. Кириченко, О. Н. Забелина, М. Г. Первова, Т. И. Горбунова, А. Я. Запевалов // Аналитика и контроль. - 2004. - Т. 8, N 3. - 272-276: табл., граф. - Библиогр. : с. 276 (8 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Проведено хромато-масс-спектрометрическое исследование продуктов взаимодействия смеси полихлорбифенилов типа "Совол" с 2-аминоэтанолом. Впервые изучены масс-спектры образующихся 2-аминоэтокси-трихлор-, тетрахлор- и пентахлорбифенилов. Установлены пути фрагментации при ионизации электронным ударом. Подтверждено, что реакция замещения атома хлора проходит с образованием 2-аминоэтоксипроизводных.

Найти похожие

11.

Инвентарный номер: нет.

   С 87


    Структура и каталические свойства Cu2+-содержащего гидрогеля диоксида циркония [] = Gas chromatography - mass-spectrometry of 2-aminoethoxyderivatives of polychlorinated biphenyls / Е. Г. Ковалева, Л. С. Молочников, В. Г. Харчук, О. В. Кузнецова, А. Б. Шишмаков, М. Ю. Янченко, Л. Ю. Булдакова, И. Н. Жданов, Ю. В. Микушина, Л. А. Петров // Кинетика и катализ. - 2004. - Т. 45, N 5. - С. 794-800. - Библиогр. : с. 800 (17 назв.) . - ISSN 0453-8811

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Методами ЭПР и вольтамперометрии исследован характер распределения ионов Cu2+ в фазе гидрогелей ZrO2 и сульфатированного ZrO2 и обнаружено формирование трех типов медных структур: моноядерных комплексов Cu2+ (A), магнитных ассоциатов (B) и соединений Cu2+ (C), не дающих при используемых условиях регистрации спектров наблюдаемого сигнала ЭПР. Определена удельная каталитическая активность различных соединений Cu2+ в реакции жидкофазного окисления 2,3,5-триметил-1,4-гидрохинона. Показано, что наибольшей каталитической активностью обладают С-комплексы меди.

Найти похожие

12.

Инвентарный номер: нет.

   C 78


    Copper and Copper Oxides Nanopowders in the Oxidative Condensations of Phenylacetylene and Tert-Butylacetylene [Electronic resource] / O. A. Kuznetsova, E. F. Khmara, V. I. Filyakova, M. A. Uimin, A. E. Ermakov, C. K. Rhee, V. N. Charushin // Russian Journal of General Chemistry. - 2007. - Vol. 77, № 3. - P404-408. - Библиогр. : с. 408 (12 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Transformations of phenylacetylene and tert-butylacetylene in the presence of copper and copper oxide (Cusub2/subO, CuO) nanopowders prepared by gas-phase condensation of copper in argon were studied. The reaction of phenylacetylene with copper oxide nanopowders having different phase compositions in the absence of a solvent at room temperature resulted in oxidative condensation of phenylacetylene and complex formation of the condensation product. The complex undergoes decomposition by the action of acids, bases, and compounds capable of forming complexes. According to the X-ray diffraction data, one of the products is a new “parquet” modification of diphenyldiacetylene. Under analogous conditions, tert-butylacetylene gave rise to a complex mixture of products among which di- tert-butyldiacetylene was identified by gas chromatography-mass spectrometry. No copper complexes with the tert-butylacetylene condensation products were detected.

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2007, V. 77, N 3, p.404.pdf
Найти похожие

13.

Инвентарный номер: нет.

   R 30


    Reactivity of congeners of Sovol technical mixture of polychlorinated biphenyls toward sodium methoxide [Electronic resource] / O. N. Zabelina, T. I. Gorbunova, M. G. Pervova, V. E. Kirichenko, A. Ya. Zapevalov, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Applied Chemistry. - 2004. - Vol. 77, № 9. - P1523-1527. - Библиогр. : с. 1527 (6 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of Sovol technical mixture of polychlorobiphenyls with sodium methoxide in bipolar aprotic solvents was studied. The reactivity of polychlorobiphenyls was evaluated using gas chromatography and gas chromatography-mass spectrometry.

\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Russian Journal of Applied Chemistry\\2004, v. 77, N. 9 p.1523.pdf
Найти похожие

14.

Инвентарный номер: нет.

   P 93


    Products of the reaction of polychlorinated biphenyls with ethanol and potassium hydroxide in dimethyl sulfoxide [Electronic resource] / O. N. Zabelina, V. E. Kirichenko, M. G. Pervova, Yu. G. Yatluk, V. I. Saloutin // Russian Journal of Applied Chemistry. - 2006. - Vol. 79, № 5. - P791-798. - Bibliogr. : p. 798 (8 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BIPHENYLS -- ETHANOL -- POTASSIUM HYDROXIDE -- DIMETHYL SULFOXIDE -- GAS CHROMATOGRAPHY -- GAS CHROMATOGRAPHY MASS SPECTROMETRY
Аннотация: The reaction of a technical mixture of polychlorinated biphenyls with ethanol and potassium hydroxide in dimethyl sulfoxide was studied. The composition of the products formed in the process was determined by gas chromatography and gas chromatography mass spectrometry.

\\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2006, v. 79, N. 5, p. 791.pdf
Найти похожие

15.

Инвентарный номер: нет.

   M 38


    Mass spectrometry study of the pyrolysis of perfluoroolefin oxides [Electronic resource] / N. D. Kagramanov, A. A. Kutin, N. V. Peschanskii, A. Ya. Zapevalov, L. S. German // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1991. - Vol. 40, № 7. - P1321-1325

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The pyrolysis of perfluoroolefin oxides has been studied by gas chromatography/mass spectrometry at 400–700°C, in a current of He (110 dilution, contact time 1 sec). For oxides containing a terminal CF2 group, the sole degradation route is through the elimination of difluorocarbene. Pyrolysis of symmetrical disubstituted oxides results in the elimination of a perfluoroalkylfluorocarbene, which subsequently isomerizes to the corresponding perfluoroolefin. In the pyrolysis of unsymmetric disubstituted oxides the elimination of perfluoroalkylfluorocarbenes occurs by both of the possible routes. Trisubstituted oxides eliminate bis-perfluoroalkylcarbenes. The decomposition of tetrasubstituted oxides proceeds along several directions concurrently

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1991, 40 (7), 1321.pdf
Найти похожие

16.

Инвентарный номер: нет.

   S 98


    Synthesis of fluorine-containing quinoline-2,3-dicarboxylates from products of vicarious nucleophilic substitution of hydrogen in 3-fluoronitroarenes [Electronic resource] / S. K. Kotovskaya, G. A. Zhumabaeva, V. N. Charushin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2009. - Vol. 58, № 1. - P170-175

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of 3-fluoro-4-R-6-phenylsulfonylmethylnitrobenzenes with dimethyl fumarate or diethyl maleate in acetonitrile in the presence of an excess of K2CO3 and a catalytic amount of 18-crown-6 afforded mixtures of dialkyl 6-R-7-fluoro- and dialkyl 6-R-7-phenylsulfonylquinoline-2,3-carboxylate N-oxides, as well as dialkyl 6-R-7-fiuoro- quinoline-2,3-carboxylates (alkyl is methyl or ethyl), which were resolved by column chromatography and identified by 1H NMR spectroscopy and X-ray diffraction

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2009, 58 (1), 170-175.pdf
Найти похожие

17.

Инвентарный номер: нет.

   Z 11

    Zabelina, O. N.
    Analysis of polychlorinated biphenyl mixtures by gas chromatography [Electronic resource] / O. N. Zabelina, V. I. Saloutin, O. N. Chupakhin // Journal of Analytical Chemistry. - 2010. - Vol. 65, № 11. - P1098-1108 : табл. - Bibliogr. : p. 1106-1108 (129 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYCHLORINATED BIPHENYLS -- GAS CHROMATOGRAPHY -- AROCLORS -- MASS-SPECTROMETRIC DETECTION
Аннотация: The data published during the recent 10–15 years on the conditions of gas chromatographic separation (columns, temperature modes, and detection methods), identification, and determination of the components of polychlorinated biphenyl technical mixtures are summarized. Special attention is paid to mass-spectrometric detection.

\\\\Expert2\\nbo\\Journal of Analytical Chemistry\\2010, V. 65, N 11, p. 1098-1108.pdf
Найти похожие

18.

Инвентарный номер: нет.

   P 48

    Pervova, M. G.
    Determination of 1,2,3-benzotriazole in aqueous solutions and air by reaction-gas-liquid chromatography [Electronic resource] / M. G. Pervova, V. E. Kirichenko, V. I. Saloutin // Journal of Analytical Chemistry. - 2010. - Vol. 65, № 3. - P276-279 : табл., граф. - Bibliogr. : p. 279 (18 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BENZOTRIAZOLE -- AQUEOUS SOLUTIONS -- AIR -- CHROMATOGRAPHY -- REACTION-GAS-LIQUID CHROMATOGRAPHY
Аннотация: A procedure is developed for the gas-chromatographic determination of 1,2,3-benzotriazole including preliminary derivatization with acetic anhydride in an aqueous solution followed by the extraction the derivative with toluene. The procedure is applied to the analysis of water samples, process solutions for treating metals, air of the working zone, and industrial emissions. Determination limits in water media are 0.01 mg/L and in the air of the working zone, 0.1 mg/m3.

\\\\Expert2\\nbo\\Journal of Analytical Chemistry\\2010, V. 65, N 3, p. 276-279.pdf
Найти похожие

19.

Инвентарный номер: нет.

   P 48

    Pervova, M. G.
    Determination of Chloroacetic Acids in Drinking Water by Reaction Gas Chromatography [Electronic resource] / M. G. Pervova, V. E. Kirichenko, K. I. Pashkevich // Journal of Analytical Chemistry. - 2002. - Vol. 57, № 4. - P326-330. - Bibliogr. : p. 330 (20 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A procedure was developed for determining chloroacetic acids in drinking water. The procedure is based on solid-phase extraction followed by the conversion of chloroacetic acids to trifluoroacetic esters and their separation and determination by gas–liquid chromatography with an electron capture detector. Esterification conditions were optimized. The procedure was used for analyzing samples of drinking water

\\\\Expert2\\nbo\\Journal of Analytical Chemistry\\2002, V. 57, N 4, p. 326.pdf
Найти похожие

20.

Инвентарный номер: нет.

   A 90


    Atropoisomerism of 13-N,N-dimethylamide-15,17-dimethyl ester of chlorin e6 from the data of X-ray, 1H NMR, and HPLC [Electronic resource] / D. V. Belykh, E. V. Buravlev, P. A. Slepukhin, A. V. Kuchin // Russian Journal of General Chemistry. - 2010. - Vol. 80, № 11. - P2382-2386. - Bibliogr. : p. 2386 (9 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Atropoisomerism of tertiary 13-amides of chlorin e 6 was studied by the methods of X-ray analysis, 1H NMR spectroscopy, and high performance liquid chromatography on the example of 13-N,N-dimethylamide-15,17-dimethyl ester of chlorin e 6. The spatial structure of the major and minor atropoisomers was established. The possibility of reversible interconversion of the atropoisomers of the studied compound in solution was shown

\\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2010, V. 80, N 11, p.2382-2386.pdf
Найти похожие

21.

Инвентарный номер: нет.

   R 30


    Reactivity features of polychlorobiphenyl congeners in the nucleophilic substitution reactions / T. I. Gorbunova, M. G. Pervova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2012. - Vol. 82, № 1. - С. 138-143. - Bibliogr. : p. 143 (18 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYCHLORINATED-BIPHENYLS -- IRON -- DECHLORINATION -- NANOPARTICLES -- PCBS
Аннотация: Groups of congeners and individual congeners of polychlorobiphenyls contributing to the composition of the technical mixture "Sovol" (PCB 60, PCB 64, PCB 70, PCB 74, PCB 97, PCB 101, PCB 105, PCB 110, PCB 118, PCB 138, PCB 149, PCB 156, and PCB 163) were synthesized by the reaction of aryl-aryl coupling. The interaction of the congeners with sodium methoxide was performed and their complete conversion was proved. By means of gas chromatography-mass spectrometry the PCBs methoxy derivatives were identified. The data on the reactivity of the individual polychlorobiphenyl congeners were precised

Найти похожие

22.

Инвентарный номер: нет.

   C 73


    Combination of the Suzuki–Miyaura cross-coupling and nucleophilic aromatic substitution of hydrogen (HSN) reactions as a versatile route to pyrimidines bearing thiophene fragments / E. V. Verbitskiy, E. M. Cherprakova, P. A. Slepukhin, M. I. Kodess, M. A. Ezhikova, M. G. Pervova, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Tetrahedron. - 2012. - Vol.68, №27-28. - С. 5445-5452

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SUZUKI–MIYAURA -- CROSS-COUPLING -- PYRIMIDINES
Аннотация: It has been shown that combination of the Suzuki–Miyaura cross-coupling and nucleophilic aromatic substitution of hydrogen is a versatile method for the synthesis of 4-(thiophen-2-yl)-, 5-(thiophen-2-yl)-, and 4,5-di(thiophen-2-yl) substituted pyrimidines from the commercially available 5-bromopyrimidine. The HSN (AE)- and HSN (AO)-reactions of 5-bromopyrimidine with thiophene and 2-bromothiophene have been studied by gas–liquid chromatography/mass-spectrometry. The structures of intermediate σH-adducts, as well as thiophene-(thiophenyl)pyrimidine and bithiophene-(thiophenyl)pyrimidine dyads have first been established by X-ray crystallography analysis

\\\\Expert2\\nbo\\Tetrahedron\\2012, v. 68, p. 5445.pdf
Найти похожие

23.

Инвентарный номер: нет.

   R 30


    Reaction of polychlorinated biphenyls and benzenes with neopentyl glycol / M. G. Pervova, T. I. Gorbunova, M. A. Samorukova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2012. - Vol.82, №3. - С. 428-435

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,4-TRICHLOROBENZENE -- BIPHENYLS -- SOVOL
Аннотация: The reactions of a mixture of 1,2,3- and 1,2,4-trichlorobenzene and polychlorinated biphenyls congeners of the industrial mixture Sovol with neopentyl glycol in the presence of alkali in DMSO medium was studied. In the conditions of nucleophilic substitution the aromatic compounds are converted completely. Using the method of gas chromatography with flame ionization and mass spectrometric detectors the structure of all synthesized compounds was studied and the following series of increasing reactivity of the polychlorinated biphenyls congeners was revealed: tetra- < penta- < hexachlorobiphenyls. The process can serve as a preliminary step of the preparation of industrial waste for the subsequent biological degradation

\\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2012, V. 82, N3, p. 428-435.pdf
Найти похожие

24.

Инвентарный номер: нет.

   M 65


    Microwave-assisted palladium-catalyzed C–C coupling versus nucleophilic aromatic substitution of hydrogen (SNH) in 5-bromopyrimidine by action of bithiophene and its analogues [Электронный ресурс] / E. V. Verbitskiy, E. M. Cheprakova, E. F. Zhilina, M. I. Kodess, M. A. Ezhikova, M. G. Pervova, P. A. Slepukhin, V. N. Charushin // Tetrahedron. - 2013. - Vol.69, №25. - P5164-5172

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
C–H BOND ACTIVATIONS -- PYRIMIDINES -- PALLADIUM
Аннотация: 5-Bromopyrimidine reacts with 2,2′-bithiophene, [2,2′:5′,2″]terthiophene and 2-phenylthiophene in the presence of a palladium catalyst to give 5-(het)aryl substituted pyrimidines due to the palladium-catalyzed aryl–aryl C–C coupling. However 5-bromo-4-(het)aryl-pyrimidines have been prepared from the same starting materials through the SNH-reaction catalyzed by a Lewis acid. Conditions for both types of reactions were optimized. All components of the reaction mixtures, including by-products, have been elucidated by gas–liquid chromatography/mass-spectrometry. Evidence for the structure of 4- and 5-bithiophenyl-substituted pyrimidines has first been obtained by means of X-ray crystallography analysis. Molecular orbital calculations (TDDFT), as well as the redox and optical measurements for all new compounds have also been performed

\\\\Expert2\\NBO\\Tetrahedron\\2013, v. 68, p. 5164.pdf
Найти похожие

25.

Инвентарный номер: нет.

   S 98


    Synthesis and structure of the disc-like cluster C72H 102N12Ni13O40 [Электронный ресурс] / A. V. Pestov, P. A. Slepukhin, A. E. Permyakov, Yu. G. Yatluk // Journal of Structural Chemistry. - 2012. - Vol.53, №6. - P1017-1023

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DISC-LIKE CLUSTER Ni13 -- SYNTHESIS -- METHYLIMINODIPROPIONIC ACID
Аннотация: The disc-like cluster C72H102N12Ni 13O40 is first time synthesized based on N-(2-pyridyl)methyliminodipropionic acid. Single crystal X-ray diffraction is used to determine its atomic structure. The cluster consists of seven-nuclear core: nickel(II) hydrocomplex (Ni.Ni distance 3.012-3.032 Å) and six nickel chelates of the corresponding acid arranged around its perimeter (Ni.Ni distance 2.981-3.164 Å). In the chelate part of the complex, the ligand is pentadentate owing to the formation of a bridging bond, thus organizing a coordination geometry of the metal center as a distorted square bipyramid (4+2). Liquid chromatography-mass spectrometry is employed to study the structure of the obtained nickel(II) complexes

Найти похожие

26.

Инвентарный номер: нет.

   O-97


    Oxidation of highly chlorinated benzenes and biphenyls with potassium persulfate in the presence of perfluorinated radicals [Electronic resource] / T. I. Gorbunova, M. G. Pervova, A. A. Panyukova, A. Ya. Zapevalov, V. I. Saloutin // Russian Journal of General Chemistry. - 2013. - Vol. 83, №9. - С. 1678-1686. - Bibliogr. : p. 1686 (25 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1,2,3,4-TETRACHLOROBENZENE -- 2,4,5-TRICHLOROBIPHENYL -- 2,5,4′-TRICHLOROBIPHENYL
Аннотация: The interaction of 1,2,3,4-tetrachlorobenzene, 2,4,5-trichlorobiphenyl, 2,5,4′-trichlorobiphenyl, a mixture of 1,2,3- and 1,2,4-trichlorobenzene, and industrial mixtures of polychlorinated biphenyls with potassium persulfate in the presence of potassium perfluorobutyrate has been investigated. The oxidation of highly chlorinated benzenes and biphenyls proceeds with lower conversion than that of the low-chlorinated compounds. The oxidation of the highly chlorinated aromatic substrates is not selective; the reaction mixture contains products of several competitive reactions: addition and elimination of radical species, disproportionation, isomerization, etc. The structures of the products have been determined by means of gas chromatography with mass spectrometric detection

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2013, V. 83, N 9, p. 1678–1686.pdf
Найти похожие

27.

Инвентарный номер: нет.

   B 12


    Bacterial degradation of a mixture obtained through the chemical modification of polychlorinated biphenyls by polyethylene glycols / D. O. Egorova, T. I. Gorbunova, M. G. Pervova, V. A. Demakov // Applied Biochemistry and Microbiology. - 2014. - Vol. 50, № 7. - С. 722-729. - Bibliogr. : p. 729 (29 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BACTERIAL DEGRADATION -- CHEMICAL MODIFICATION -- POLYETHYLENE GLYCOLS
Аннотация: Polychlorinated biphenyls (PCBs), also known by the trade name Sovol, are toxic industrial wastes. They have been subjected to chemical treatment by polyethylene glycols (PEGs) and potassium hydroxide. As a result of the interaction of the Sovol with various molecular mass PEGs (MMPEG-4 ∼ 200, MMPEG-22 ∼ 1000), water-soluble mixtures M1 and M2 containing mono(polyethylene glycol)oxy-derivatives (PCB-PEG-4 and PCB-PEG-22), polychlorobiphenylols, and unreacted PCB congeners (PCB 44, PCB 47, PCB 49, PCB 52, and PCB 66) were obtained. It was shown for the first time that mixtures M1 and M2 are susceptible to bacterial degradation without their fractionation. According to the gas-liquid chromatography with flame-ionization and mass-spectrometric detection, the Rhodococcus wratislaviensis KT112-7 strain degraded all of the chemical compounds occurring in the mixtures. In a 5-day experiment, it was found that the KT112-7 strain decomposes mono(polyethylene glycol)oxy-derivatives completely (by 100%) and polychlorobiphenylols and PCB congeners by 90–95% in the M1 and M2 mixtures. The culture medium did not contain transformation products, whereas free chlorine ions were accumulated (72–94% of the maximum possible amount). Thus, the use of the chemical modification and consecutive bacterial degradation provided an effective destruction of technical PCB mixtures with a high content of highly chlorinated congeners

\\\\expert2\\nbo\\Applied Biochemistry and Microbiology\\2014, v.50, N 7, p.722-729.pdf
Найти похожие

28.

Инвентарный номер: нет.

   I-70


    Investigation of polychlorinated biphenyls congeners in the Trikhlorbifenil technical mixture [Electronic resource] / M. G. Pervova, K. A. Plotnikova, T. I. Gorbunova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2015. - Vol. 85, № 8. - С. 1929-1933. - Bibliogr. : p. 1933 (15 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYCHLORINATED BIPHENYLS -- GAS CHROMATOGRAPHY -- CONGENERS
Аннотация: Polychlorinated biphenyls contained in the Trikhlorbifenil technical mixture have been studied and identified. Content of the congeners in the mixture has been determined using the internal reference method. The results have been applied to determine qualitative and quantitative composition of polychlorinated biphenyls in contaminated soil.

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2015, V. 85, N 8, p. 1929-1933.pdf
Найти похожие

29.

Инвентарный номер: нет.

   F 33


    Features of polychlorinated biphenyls nitration [Electronic resource] / T. I. Gorbunova, M. G. Pervova, K. A. Plotnikova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2015. - Vol. 85, № 7. - С. 1611-1616. - Bibliogr. : p. 1616 (21 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYCHLORINATED BIPHENYLS -- GAS CHROMATOGRAPHY -- NITRATION
Аннотация: Nitration of mono-, di-, and trichlorobiphenyls has been studied. The nitration degree depends on the number of chlorine substituents; one to four nitro groups can be introduced. The conclusions have been confirmed by results of nitration of the "Trikhlorbifenil" technical mixture of polychlorinated biphenyls.

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2015, V. 85, N 7, p. 1611-1616.pdf
Найти похожие

30.

Инвентарный номер: нет.

   S 98


    Synthesis of ultra-high molecular weight polyolefins of regular structure in octafluorobutane medium / N. A. Rasputin, S. V. Yakovlev, G. A. Artem'ev [et al.] // Russian Journal of Applied Chemistry. - 2021. - Vol. 94, № 6. - P736-740

ББК Г
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The suspension polymerization in octafluorobutane, initiated by Ziegler–Natta catalyst system, has been used to synthesize ultra-high molecular weight poly(1-hexene), poly(1-octene), and poly(1-decene) of regular structure with high yields. This technique makes it possible to successfully carry out reactions at close to room temperature, followed by easy isolation of polymer products. The regularity of the structure of the synthesized polymers was proved based on the data of 1H and 13C NMR spectroscopy. Using gel permeation chromatography, data on the molecular weight distribution of polymer molecules were obtained. They indicated that the weighted average mass of the synthesized polymers is many times higher than the mass of polyolefins produced by the classical technique of homogeneous polymerization.

Найти похожие

1-30 31-32

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)