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1.

Вид документа : Статья из журнала
Шифр издания : 54/A 90
Автор(ы) : Belykh D.V., Buravlev E. V., Slepukhin P. A., Kuchin A. V.
Заглавие : 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]
Место публикации : Russian Journal of General Chemistry. - 2010. - Vol. 80, № 11. - С. 2382-2386
Систем. требования: http://www.springerlink.com/content/95g3637738830314/fulltext.pdf
Примечания : Bibliogr. : p. 2386 (9 ref.). - 17.10.2011
ББК : 54
Предметные 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
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2.

Вид документа : Статья из журнала
Шифр издания : 54/B 12
Автор(ы) : Egorova D. O., Gorbunova T. I., Pervova M. G., Demakov V. A.
Заглавие : Bacterial degradation of a mixture obtained through the chemical modification of polychlorinated biphenyls by polyethylene glycols [Электронный ресурс]
Место публикации : Applied Biochemistry and Microbiology. - 2014. - Vol. 50, № 7. - С. 722-729
Систем. требования: http://download-v2.springer.com/static/pdf/131/art%253A10.1134%252FS0003683814070023.pdf?token2=exp=1428652880~acl=%2Fstatic%2Fpdf%2F131%2Fart%25253A10.1134%25252FS0003683814070023.pdf*~hmac=3182eca3e5ccea6ab1f49dd6b89a557b80a88fa01d0e203f57bcd3fed34fc4d2
Примечания : Bibliogr. : p. 729 (29 ref.). - 10.04.15
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 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
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3.

Вид документа : Статья из журнала
Шифр издания : 54/N 64
Автор(ы) : Nikitin E. D., Popov A. P., Yatluk Yu. G.
Заглавие : Critical point measurements for n-alkyl benzoates (C8 to C 13)
Место публикации : Journal of Chemical & Engineering Data. - 2007. - Vol. 52, № 4. - С. 1336-1339
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The critical temperatures and critical pressures of six n-alkyl benzoates C6H5COO(CH2)nH with n = 1 to 6 have been measured. All the substances are thermally unstable at their critical points. The method of pulse-heating of a wire probe placed into the liquid under study has been used. Residence times are from (0.03 to 1) ms, which results in little decomposition of the liquid in the course of measuring. The experimental critical properties of alkylbenzoates have been compared with the values estimated by the group contribution methods of Constantinou and Gani and Marrero and Gani
\\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2007, v.52, p.1336.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 54/N 64
Автор(ы) : Nikitin E. D., Popov A. P., Yatluk Yu. G.
Заглавие : Critical pressures and temperatures of n-diaminoalkanes (C2 to C12)
Место публикации : Journal of Chemical & Engineering Data. - 2006. - Vol. 51, № 2. - С. 609-611
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The critical temperatures and pressures of eight n-diaminoalkanes NH 2(CH2)nNH2 with n = 2, 3, 4, 6, 8, 9, 10, and 12 have been measured. The method of pulse heating of a wire probe immersed into the liquid under study has been used. Residence times are from (0.03 to 1) ms. The critical properties of diaminoalkanes have been estimated by the group-contribution methods by Joback and Reid, Constantinou and Gani, and Marrero and Gani. These properties have also been calculated using a method based on the assumption that the functions describing the dependence of the critical properties of homologous series on the number of mers in a molecule should be self-similar and provide the scaling behavior for long-chain molecules. The last method provides the best accuracy in calculating the critical properties of diaminoalkanes. For this method, the average absolute errors are equal to 0.4 % for the critical temperature and about 2 % for the critical pressure. © 2006 American Chemical Society
\\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2006, v.51, p.609.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 54/N 64
Автор(ы) : Nikitin E. D., Popov A. P., Yatluk Yu. G.
Заглавие : Critical temperatures and pressures of 12 phthalates using the pulse-heating method
Место публикации : Journal of Chemical & Engineering Data. - 2006. - Vol. 51, № 4. - С. 1326-1330
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The critical temperatures and pressures of phthalates with the straight side alkyl chains C6H4-1,2-[COO(CH2) nH]2 (n is from 1 to 11) as well as bis(2-ethylhexyl) phthalate have been measured. No literature data are available for the critical properties of phthalates. Since phthalates decompose at temperatures well below their critical temperatures, the method of pulse heating of a wire probe immersed into the liquid under study has been used. The method minimizes the effect of thermal decomposition because residence times are only from (0.035 to 1) ms. The experimental critical properties of phthalates have been compared with the values calculated using the group-contribution methods by Constantinou and Gani and Marrero and Gani ??
\\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2006, v.51, p.1326.pdf
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6.

Вид документа : Статья из журнала
Шифр издания : 54/C 89
Автор(ы) : Nikitin E. D., Popov A. P., Bogatishcheva N. S., Yatluk Yu. G.
Заглавие : Critical Temperatures and Pressures of Straight-Chain Saturated Dicarboxylic Acids (C4 to C14)
Место публикации : Journal of Chemical & Engineering Data. - 2004. - Vol. 49, № 6. - С. 1515-1520: ил.
Примечания : Библиогр.: с. 1520 (25 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The critical temperatures and pressures of nine saturated straight-chain dicarboxylic acids HOOC(CH2)nCOOH with n = 2, 3, 4, 5, 6, 7, 8, 10, and 12 have been measured. All of the acids investigated are thermally unstable at their critical points. The method of pulse heating of a wire probe immersed in the liquid under study has been used. Residence times are from (0.01 to 1) ms. The experimental critical properties of dicarboxylic acids have been compared with the values calculated by the group-contribution methods of Ambrose, Joback, and Reid, Constantinou and Gani, and Marrero and Gani. ??
\\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2004, v.49, p.1515.pdf
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7.

Вид документа : Статья из журнала
Шифр издания : 54/P 48
Автор(ы) : Pervova M. G., Kirichenko V. E., Saloutin V. I.
Заглавие : Determination of 1,2,3-benzotriazole in aqueous solutions and air by reaction-gas-liquid chromatography [Electronic resource]
Место публикации : Journal of Analytical Chemistry. - 2010. - Vol. 65, № 3. - С. 276-279: табл., граф.
Систем. требования: http://www.springerlink.com/content/052n6875g85203j0/fulltext.pdf
Примечания : Bibliogr. : p. 279 (18 ref.). - 13.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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
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8.

Вид документа : Статья из журнала
Шифр издания : 54/O-84
Автор(ы) : Osipova O. A., Kirichenko V. E., Pashkevich K. I.
Заглавие : Determination of lower alkylmercaptans by reaction gas-liquid-chromatography
Место публикации : Journal of Analytical Chemistry. - 1995. - Vol. 50, N 8. - С. 781-784
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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9.

Вид документа : Статья из журнала
Шифр издания : 54/D 55
Автор(ы) : Kataev V. E., Militsina O. I., Strobykina I. Yu., Gubaidullin A. T., Zverev V. V., Kataeva O. N., Fedorova O. V., Valova M. S., Rusinov G. L.
Заглавие : Diesters on the basis of 16-hydroxyisosteviol and dicarboxylic acids as carriers of Fe(III) picrates
Место публикации : Journal of Inclusion Phenomena and Macrocyclic Chemistry. - 2008. - Vol. 60, № 1-2. - С. 51-58
Примечания : Библиогр. : с. 58 (32 назв.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Diesters on the basis of 16-hydroxyisosteviol and dicarboxylic acids, exhibiting anti-tubercular activity, transport Fe(III) through liquid chloroform membrane which models a cell membrane. It is revealed that fluxes and anti-tubercular activity increase, as the length of the chain (spacer) between two ent-beyran skeletons of diesters increases. Computations on the level DFT/PBE explain the dependence of complexes stability on a structure of diterpenoid ligands. The structures of three diesters were established by single crystal X-ray analysis. ??
\\\\Expert2\\nbo\\Journal of Inclusion Phenomena and Macrocyclic Chemistry\\2008, V.60, N1-2, 51.pdf
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10.

Вид документа : Статья из журнала
Шифр издания : 54/F 33
Автор(ы) : Khonina T. G., Safronov A. P., Ivanenko M.V., Shadrina E. V., Chupakhin O. N.
Заглавие : Features of silicon- and titanium-polyethylene glycol precursors in sol-gel synthesis of new hydrogels [Электронный ресурс]
Место публикации : Journal of Materials Chemistry B. - 2015. - Vol. 3, № 27. - С. 5490-5500
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 5499-5500 (38 ref.). - 20.01.2016
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): modified silanes --mineralization--monoliths
Аннотация: The formation of organic/inorganic hydrogels based on silicon and titanium polyethylene glycolates, new biocompatible water-soluble precursors in sol-gel processing, was investigated. The influence of different factors on the gelation process, such as excess of PEG, water molar content, pH of medium, electrolyte additives, was investigated in comparison with silicon-and titanium-glycerol precursors. The specific features of gelation for each type of precursor were revealed. It has been determined that titanium polyethylene glycolates synthesized and used in the excess of PEG formed transparent polymeric hydrogels resistant to syneresis under certain conditions. The titanium polyethylene glycolates synthesized without excess of PEG formed turbid heterogeneous colloidal gels. In the case of silicon polyethylene glycolates the hydrogels obtained were polymeric. Dynamic light scattering was used to confirm the polymeric or colloidal type of gelation. The solid and liquid phases of polymeric silicon- and titanium-polyethylene glycol hydrogels were separated by exhaustive extraction. The solid phase was characterized by combined thermal analysis with simultaneous quadruple mass spectrometry, XRD, IR spectroscopy, and liquid phase-atomic emission spectroscopy. The structural features of polymeric gels were investigated by SEM and TEM methods. The cross-linking density of polymeric hydrogels was evaluated using Flory-Rehner theory based on the mechanical properties of swollen networks of flexible polymeric chains
\\\\expert2\\nbo\\Journal of Materials Chemistry B\\2015. V. 3, N 27. P. 5490-5500.pdf
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