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1.
S. A. Bulgakova A. I. Mashin I. A. Kazantseva D. E. Kashtanov M. M. Jones G. S. Tsepkov A. V. Korobkov A. V. Nezhdanov 《Russian Journal of Applied Chemistry》2008,81(8):1446-1451
Polymer films with a dispersed liquid crystal were prepared by photopolymerization of (meth)acrylic monomers. The electrooptical properties of these films were studied. The influence exerted by the composition of the monomer mixture, cross-linking agents, and chain-transfer agent on the liquid crystal drop size and on the transmission of the polymer-liquid crystal films was examined. 相似文献
2.
Aleinikov N. N. Vasil'ev G. K. Kashtanov S. A. Makarov E. F. Chernyshev Yu. A. 《Kinetics and Catalysis》2001,42(2):233-237
The dependence of the rate of a photochemical reaction of XeO4with H2on the concentrations of H2and the diluent gases He and CO2is studied at room temperature. The results are compared with the data for the dark reaction. A mechanism with the elementary energetic branched-chain reaction OH
(v) + XeO4OH
+ O
+ XeO3is proposed to explain the results of the study. 相似文献
3.
N. N. Aleinikov G. K. Vasil'ev S. A. Kashtanov E. F. Makarov Yu. A. Chernyshev 《Russian Chemical Bulletin》1996,45(6):1344-1349
The of photochemical decomposition of XcO4 under the action of UV-radia(ion in the wavelength range of 200–300 nm was investigated. The quantum yield of the formation of oxygen atoms upon XeO4 photodissociation was measured (Ф = 3.6±0.4). The results obtained point to the predominant role of the XeO4 +hv → 4O + Xe photodissociation channel of XeO4. The value of the rate constant of the reaction XeO4 + O → O2 + XeO3 was estimated (<4.5 · 10?16 cm2 s?1). 相似文献
4.
Prof. Sergey N. Britvin Dr. Sergei A. Kashtanov Dr. Maria G. Krzhizhanovskaya Dr. Andrey A. Gurinov Dr. Oleg V. Glumov Dr. Stanislav Strekopytov Dr. Yury L. Kretser Prof. Anatoly N. Zaitsev Prof. Nikita V. Chukanov Prof. Sergey V. Krivovichev 《Angewandte Chemie (International ed. in English)》2015,54(48):14340-14344
The Group 18 elements (noble gases) were the last ones in the periodic system to have not been encountered in perovskite structures. We herein report the synthesis of a new group of double perovskites KM(XeNaO6) (M=Ca, Sr, Ba) containing framework‐forming xenon. The structures of the new compounds, like other double perovskites, are built up of the alternating sequence of corner‐sharing (XeO6) and (NaO6) octahedra arranged in a three‐dimensional rocksalt order. The fact that xenon can be incorporated into the perovskite structure provides new insights into the problem of Xe depletion in the atmosphere. Since octahedrally coordinated XeVIII and SiIV exhibit close values of ionic radii (0.48 and 0.40 Å, respectively), one could assume that XeVIII can be incorporated into hyperbaric frameworks such as MgSiO3 perovskite. The ability of Xe to form stable inorganic frameworks can further extend the rich and still enigmatic chemistry of this noble gas. 相似文献
5.
6.
V. I. Uvarov V. K. Brel' I. V. Martynov N. N. Aleinikov S. A. Kashtanov 《Russian Chemical Bulletin》1988,37(11):2391-2391
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2650–2651, November, 1988. 相似文献
7.
V. V. Zelenov E. V. Aparina A. V. Chudinov S. A. Kashtanov 《Russian Journal of Physical Chemistry B, Focus on Physics》2010,4(3):399-407
The reactive uptake of NO3 radicals on the surface of wetted individual X salts and of wetted X-NaCl salts (X = MgCl2 · 6H2O and MgBr2 · 6H2O) at [H2O] = 2 × 1012−2 × 1015 cm−3 and NO3 (4.8 × 1012 cm−3) was studied using a reactor with a movable insert covered with a salt coating in combination with a mass spectrometer for
monitoring the initial reactant and products. The probabilities of NO3 uptake γ on X-NaCl binary salts as functions of the content of doping salt were determined. A parametric approximation of
the experimental data was proposed, which makes it possible to quantitatively predict the extent of surface enrichment of
a wetted binary salt coating in doping salt and its dependence on the humidity and the content of this salt in the binary
mixture. It was established that the relative surface density σX of X doping salt depends on its mole fraction μX in the X-NaCl binary salt as σX = aμX (a = 2.2 for MgBr2 and 13.1 for MgCl2) over the entire humidity range covered. The contributions of the X salts to the overall uptake of NO3 at NO3 concentration typical of the tropospheric conditions ([NO3] ∼ 107 cm−3 and relative humidities of RH ≤ 20%) were estimated. 相似文献
8.
We construct and investigate a new iterative solution method for a finite-dimensional constrained saddle point problem. The results are applied to prove the convergence of different iterativemethods formesh approximations of variational inequalities with constraints on the gradient of solution. In particular, we prove the convergence of two-stage iterative methods. The main advantage of the proposed methods is the simplicity of their implementation. The numerical testing demonstrates high convergence rate of the methods. 相似文献
9.
Kashtanov S Zhuang GV Augustsson A Nordgren J Luo Y Ross PN Guo J 《The journal of physical chemistry. B》2007,111(40):11658-11661
The electronic structure of pol(ethylene oxide) (PEO) in a thin (<1 mu) film sample was experimentally probed by X-ray emission spectroscopy. Both nonresonant and resonant X-ray emission spectra were simulated by using density functional theory (DFT) applied to four different models representing different conformations in the polymer. Calculated spectra were compared with experimental results for the PEO film. It was found that the best fit was obtained with the polymer conformation in PEO electrolytes from which the salt (LiMF6, M = P, As, or Sb) had been removed. This conformation is different from the crystalline bulk polymer and implies that film casting, commonly used to form electrolytes for Li polymer batteries, induces the same conformation in the polymer not depending upon the presence of salt. 相似文献
10.
N. N. Aleinikov S. A. Kashtanov I. A. Pomytkin A. M. Sipyagin 《Russian Chemical Bulletin》1995,44(1):180-181
Bis(tetramethylammonium), bis(tetrabutylammonium), and bis(tetraphenylarsonium) dihydrohexaoxoxenonates(VIII) were obtained in an aqueous solution and in acetonitriie. The rate constants of their decomposition were determined.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 1, pp. 184–185, January, 1995.This work was carried out with financial support from the International Scientific Foundation (Grant REI 000). 相似文献