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Общее количество найденных документов : 16
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1.

Вид документа :
Шифр издания : Г/U 61
Автор(ы) : Khamidullina L. A., Puzyrev I. S., Slepukhin P. A., Pestov A. V., Tobysheva P. D., Burygin G. L., Dorovatovskii P. V., Zubavichus Y. V., Mitrofanova A. V., Khrustalev V. N., Tskhovrebov A. G., Timofeeva T. V., Solari E., Nenajdenko V. G.
Заглавие : Unsymmetrical trifluoromethyl methoxyphenyl β-diketones: effect of the position of methoxy group and coordination at Cu(II) on biological activity
Место публикации : Molecules. - 2021. - Vol. 26, № 21. - Ст.6466
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): copper(ii)--diketonates--cytotoxic activity--antimicrobial activity
Аннотация: Copper(II) complexes with 1,1,1-trifluoro-4-(4-methoxyphenyl)butan-2,4-dione (HL1) were synthesized and characterized by elemental analysis, FT-IR spectroscopy, and single crystal X-ray diffraction. The biological properties of HL1 and cis-[Cu(L1)2(DMSO)] (3) were examined against Gram-positive and Gram-negative bacteria and opportunistic unicellular fungi. The cytotoxicity was estimated towards the HeLa and Vero cell lines. Complex 3 demonstrated antibacterial activity towards S. aureus comparable to that of streptomycin, lower antifungal activity than the ligand HL1 and moderate cytotoxicity. The bioactivity was compared with the activity of compounds of similar structures. The effect of changing the position of the methoxy group at the aromatic ring in the ligand moiety of the complexes on their antimicrobial and cytotoxic activity was explored. We propose that complex 3 has lower bioavailability and reduced bioactivity than expected due to strong intermolecular contacts. In addition, molecular docking studies provided theoretical information on the interactions of tested compounds with ribonucleotide reductase subunit R2, as well as the chaperones Hsp70 and Hsp90, which are important biomolecular targets for antitumor and antimicrobial drug search and design. The obtained results revealed that the complexes displayed enhanced affinity over organic ligands. Taken together, the copper(II) complexes with the trifluoromethyl methoxyphenyl-substituted β-diketones could be considered as promising anticancer agents with antibacterial properties
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2.

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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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Solovyova Y. V., Pestov A. V., Puzyrev I. S., Pervova M. G., Kuznetsov V. A., Vlasov I. A., Artemiev G. A.
Заглавие : Synthesis of δ-Valerolactone Using Stable Hydrogen Peroxide Derivatives
Место публикации : Russian Journal of Organic Chemistry. - 2022. - Vol. 58, № 4. - С. 480-483
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The efficiencies of hydrogen peroxide derivatives in the Baeyer–Villiger oxidation of cyclopen­tanone to δ-valerolactone have been compared. The oxidants used were hydrogen peroxide in acetic, formic, or trifluoroacetic acid, magnesium and sodium monoperoxyphthalates, cumene hydroperoxide, and tert-butyl hydroperoxide. The oxidation was carried out in water, aqueous methanol, and water–ethyl acetate. Sodium and magnesium monoperoxyphthalates turned out to provide high conversion and selectivity under mild conditions.
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4.

Вид документа :
Шифр издания : 54/S 89
Автор(ы) : Khamidullina L. A., Puzyrev I. S., Pestov A. V., Moshkin V. S., Yatluk Yu. G.
Заглавие : Structure and absorption spectra of substituted 2-hydroxy-2-trifluoromethylchroman-4-ones
Место публикации : Journal of Applied Spectroscopy. - 2012. - Vol.79, №4. - С. 509-514
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): absorption spectra--extinction coefficient--medium acidity
Аннотация: UV absorption spectra of substituted 2-hydroxy-2-trifluoromethylchroman-4-ones (chromanones) in aqueous ethyleneglycol were studied. Replacement of hydrogen in the aromatic ring of the chromanones by CH3 or CF3 groups was shown to cause the molar extinction coefficients of the K, B, and C=O bands to shift from 16,160 to 27,980 and 30,250 dm(3)/mol center dot cm; from 12,750 to 17,920 and 16,130 dm(3)/mol center dot cm; and from 3850 to 3630 and 2760 dm(3)/mol center dot cm, respectively. Increasing the solution pH from 1 to 10.5 affected weakly the aromatic ring bands yet impacted greatly the chromanone carbonyl bands, causing their lambda(max) to shift from 311-326 nm to 342-346 nm and their extinction coefficients to increase from 2760-3850 dm(3)/mol center dot cm to 9940-10,160 dm(3)/mol center dot cm. A further rise in the pH resulted in hypochromia of the carbonyl band due to the destruction of the chromanones. The results were confirmed by NMR spectroscopy and GC methods
\\\\Expert2\\nbo\\Journal of Applied Spectroscopy\\2012, v. 90, p.1176.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 54/S 81
Автор(ы) : Puzyrev I. S., Lipilin A. S., Ivanov V. V., Yatluk Yu. G.
Заглавие : Stabilization of isopropanol dispersions of nanosized powders of yttrium oxide-stabilized zirconium dioxide
Место публикации : Colloid Journal. - 2011. - Vol. 73, № 1. - С. 97-103
Примечания : Bibliogr. : p. 102-103 (20 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The properties of dispersions of nanosized powders of yttrium oxide-stabilized cubic zirconium dioxide (YSZ) are studied. The sizes of YSZ aggregates are determined under different conditions. Dispersants for dispersions of YSZ nanosized powders in isopropanol are obtained through partial esterification of poly(acrylic acid) with triethyl orthoformate. The composition and structure of the dispersants are optimized. ??
\\\\Expert2\\nbo\\Colloid Journal\\2011, V.73, N1,97.pdf
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6.

Вид документа : Статья из сборника (однотомник)
Шифр издания : 24/P 98
Автор(ы) : Puzyrev I. S., Andreikov E. I., Zakharova G. S.
Заглавие : The use of metal polyolates in synthesis of metal oxides and composites
Коллективы : Институт органического синтеза им. И. Я. Постовского УрО РАН, Институт химии твердого тела УрО РАН
Место публикации : Успехи синтеза и комплексообразования = Advances in synthesis and complexing : сборник тезисов четвертой международной научной конференции : в 2 ч. Ч. 2 : Секции «Неорганическая и координационная химия», «Физическая и коллоидная химия». - Москва: РУДН, 2017. - С. 43
ББК : 24
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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Thauer E., Adam V., Wegener S. A., Nolke J. H., Singer L., Ottmann A., Klingeler R., Zakharova G. S., Podval'naya N. V., Andreikov E. I., Puzyrev I. S., Asyuda A., Zharnikov M., Kiselkov D. M., Zhu Q.
Заглавие : Novel synthesis and electrochemical investigations of ZnO/C composites for lithium-ion batteries
Место публикации : Journal of materials science. - 2021. - № 56. - С. 13227–13242
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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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 : 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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10.

Вид документа : Статья из журнала
Шифр издания : 54/E 27
Автор(ы) : Zakharova G. S., Andreikov E., Osipova V. A., Yatluk Yu. G., Puzyrev I. S.
Заглавие : Effect of the titanium glycerolate precursor heat treatment procedure on the morphology and photocatalytic properties of TiO2 nanopowder
Место публикации : Inorganic Materials. - 2013. - Vol.49, №11. - С. 1127-1132
Примечания : Bibliogr. : p. 1132 (20 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): nano powders--photocatalytic property--tio2
Аннотация: We have studied the effect of titanium glycerolate precursor heat treatment on the morphology, structure, and photocatalytic properties of titanium dioxide nanopowders
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