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101.
A. A. Sokolov M. A. Syroeshkin V. N. Solkan T. V. Shebunina R. S. Begunov L. V. Mikhal’chenko M. Yu. Leonova V. P. Gultyai 《Russian Chemical Bulletin》2014,63(2):372-380
Electrochemical reduction of N-(2-nitroaryl)pyridinium chlorides in alcohol—dilute HCl mixtures gave pyrido[1,2-a]benzimidazoles in high yields in both divided and undivided cells. According to cyclic voltammetry measurements and DFT calculations (B3LYP/6-31+G(d)), the reaction involves intermediate formation of the corresponding hydroxylamine derivative followed by its heterocyclization. 相似文献
102.
V. B. Sokolov A. Yu. Aksinenko I. V. Martynov 《Russian Journal of General Chemistry》2014,84(1):86-88
Cyclocondensation of methyl 2-(5-methylisoxazol-3-yl)imino-3,3,3-trifluoropropionate with 1,3-binucleophiles such as benzamidines, aminothiazoline, and 2-aminocrotonic acid nitrile results in trifluoromethyl-containing 3,5-dihydro-4-ones, 2,3-dihydro-6H-imidazo[2,1-b]thiazol-5-one, and 4,5-dihydro-1H-pyrrole-3-carbonitrile. 相似文献
103.
Sokolov V. B. Aksinenko A. Yu. Goreva T. V. Epishina T. A. Gabrel’yan A. V. Grigoriev V. V. 《Russian Journal of General Chemistry》2020,90(1):32-38
Russian Journal of General Chemistry - Copper-catalyzed alkyne-azide 1,3-dipolar cycloaddition of methyl esters of N-azidoacetyl-2-aminothiophene-3-carboxylic acids to N-propargyl-containing... 相似文献
104.
Alexandr Kh. Plyamovatyi Raviya M. Mukhamadeeva Vasily A. Milyukov Oleg G. Sinyashin Alexandr E. Vandyukov Roald R. Shagidullin Allan G. Ginzburg Vyacheslav I. Sokolov 《Heteroatom Chemistry》1995,6(2):177-181
FT-IR spectroscopy and a special mathematical program were used for the real-time monitoring of the mechanistic path of the reaction of S-ethyl-N,N-tetraethyldiamidothiophosphite with [CpMn(CO)-2NO]+BFequation/tex2gif-stack-3.gif. The formation of a few intermediates is described. 相似文献
105.
G.?M.?Abramova G.?A.?Petrakovski? M.?Boem A.?M.?Vorotynov A.?V.?Kartashev D.?A.?Velikanov V.?V.?Sokolov A.?Yu.?Pichugin 《Physics of the Solid State》2009,51(2):319-321
Fe0.27Mn0.73S single crystals were studied. A magnetic transition is detected near 197 K, which is accompanied by anomalies of the thermal,
electrical, and resonant properties. 相似文献
106.
Yu. B. Bolkhovityanov A. K. Gutakovskii A. S. Deryabin L. V. Sokolov 《Physics of the Solid State》2011,53(9):1791-1797
The structure of dislocations in Ge
x
Si1 − x
(x ∼ 0.4–0.8) films grown by molecular beam epitaxy on Si(001) substrates tilted by 6° toward the nearest (111) plane has been
studied. The epitaxy of GeSi films on substrates deviating from the exact (001) orientation has allowed us to establish the
main mechanism of formation of edge misfit dislocations (MDs), which most effectively (for heterostructures of the given composition)
relieve stresses caused by the mismatch between lattice parameters of the film and substrate. Despite the edge MDs being defined
as immobile (sessile) dislocations, their formation proceeds according to the gliding mechanism proposed by Kvam et al. [J.
Mater. Res. 5, 1900 (1990)]. A comparative estimation of the propagation velocities of the primary and induced 60° dislocations, as well
as the resulting 90° MDs, has been performed. It has been established that the condition providing for the most effective
edge MD formation by the induced nucleation mechanism is the appearance of 60° MDs in a stressed film immediately after it
reached a critical thickness. A source of these dislocations can be provided by a preliminarily grown buffer GeSi layer that
occurs in a metastable state at the initial stage of plastic relaxation. 相似文献
107.
108.
S. K. Abramov V. V. Azatyan G. R. Baimuratova I. A. Bolod’yan V. Yu. Navtsenya D. N. Sokolov A. Yu. Shebeko Yu. N. Shebeko 《Russian Journal of Physical Chemistry B, Focus on Physics》2010,4(6):923-927
The combustion of hydrogen-air mixtures near the lower composition flammability limit in cylindrical reactors of various diameters
is studied. The speed of flame propagation in the horizontal direction is lower than that in the upward direction. Chromatographic
analysis showed that, during the combustion of these mixtures, hydrogen is consumed only partially. That the flame propagates
despite a low adiabatic temperature can be explained by the formation of the well-known cellular structure. 相似文献
109.
S. S. Aplesnin L. I. Ryabinkina O. B. Romanova V. V. Sokolov A. Yu. Pichugin A. I. Galyas O. F. Demidenko G. I. Makovetski? K. I. Yanushkevich 《Physics of the Solid State》2009,51(4):698-701
The temperature dependences of the specific magnetization σ and the electrical resistivity ρ of Me
x
Mn1 − x
S single crystals (Me= Co, Gd; x= 0.05) have been studied in the temperature range 80 K < T < 1000 K. The samples under study have revealed the presence of a spontaneous magnetic moment below the Néel temperature
(T
N) and ferromagnetic clusters in Gd0.05Mn0.95S in the temperature range 146 K < T < 680 K. Substitution of gadolinium for manganese initiates a transition from p-type to n-type conduction. The change in the conduction type is accompanied by an increase in the electrical resistivity at 300 K by
approximately one order of magnitude and, accordingly, by a decrease in the activation energy. The magnetic and electrical
properties of the crystals under study have been interpreted in terms of the cluster model with temperature-dependent ferromagnetic
exchange and an electron localized in this cluster.
Original Russian Text ? S.S. Aplesnin, L.I. Ryabinkina, O.B. Romanova, V.V. Sokolov, A.Yu. Pichugin, A.I. Galyas, O.F. Demidenko,
G.I. Makovetskiĭ, K.I. Yanushkevich, 2009, published in Fizika Tverdogo Tela, 2009, Vol. 51, No. 4, pp. 661–664. 相似文献
110.
E. Yu. Stovpiaga S. A. Grudinkin D. A. Kurdyukov Yu. A. Kukushkina A. V. Nashchekin V. V. Sokolov D. R. Yakovlev V. G. Golubev 《Physics of the Solid State》2016,58(11):2339-2344
Monodispersed spherical silica particles, including large mesopores (over 10 nm) and macropores (up to 100 nm) were obtained by chemical etching in an autoclave. A method for introducing globular protein myoglobin molecules into the pores is developed. The method of filling is based on a high adsorption capacity of the developed internal pore structure of the particles. The structure and adsorption properties of the materials are studied. 相似文献