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排序方式: 共有357条查询结果,搜索用时 279 毫秒
1.
Yu. G. Slizhov M. A. Gavrilenko 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2006,80(3):489-490
The separation of mixtures of phenols, alcohols, and alkylbenzenes by gas chromatography on adsorption layers of nickel and copper alizarinates was investigated. The thermodynamic parameters were calculated. It was shown that the sorbates differ in strength of interaction with the copper and nickel ions in their alizarin complexes. 相似文献
2.
Summary The reduction of complex esters and carbonyl compounds in hydrocarbon media by aluminum hydrides of the alkali metals results in the formation of the corresponding alcohol in high yield. The reduction of nitriles proceeds with the formation of primary amines. 相似文献
3.
L. A. Chekulaeva I. A. Garbuzova V. V. Gavrilenko L. B. Danilevskaya V. A. Kotel'nikov 《Russian Chemical Bulletin》1996,45(9):2199-2202
Alkali metal salts of acrylamide C3H4NOM (M = Li, Na, and K) were synthesized for the first time by metallation of acrylamide with alkali metals, their alkyl derivatives, or hydrides. The structures of the compounds synthesized were studied by Raman and IR spectroscopy. Based on the results obtained, an ionic structure was proposed for the salts. The salts were tested as initiators of the anionic polymerization of acrylamide. The catalytic activity of C3H4NOM in the polymerization of acrylamide is not lower than that of the well known catalyst, KOBu1.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 2316–2319, September, 1996. 相似文献
4.
R. E. Khoma M. I. Gavrilenko V. I. Nikitin 《Russian Journal of Applied Chemistry》2004,77(8):1249-1254
Electronic absorption spectroscopy and potentiometry were applied to study complexation at 293 K in a system constituted by water, carbamide, and sulfur dioxide. The composition and stability of the molecular and ionic complexes formed was determined in relation to the concentration of components in solution.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 8, 2004, pp. 1266–1270.Original Russian Text Copyright © 2004 by Khoma, Gavrilenko, Nikitin. 相似文献
5.
Conclusions To obtain Al vinyl compounds R2A1CH=CHR' by reacting R2AlH with HC=CR', we must use weakly acid acetylenes (alkyl acetylenes) and perform the reaction in aliphatic hydrocarbons at a low temperature in excess acetylene.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 910–912, April, 1968. 相似文献
6.
Abramova N Borisov Y Bratov A Gavrilenko P Domínguez C Spiridonov V Suglobova E 《Talanta》2000,52(3):533-538
Application of a potassium ion sensor based on an ion sensitive field effect transistor (ISFET) for ion control of a dialysis solution in an artificial kidney and in blood plasma of patients treated by hemodialysis is presented. Sensors and their long-term stability were characterised in constant contact with test solutions. Test results are compared to those obtained with conventional ion-selective electrodes and commercial blood ion analyser. Tested ISFET sensors showed high reliability in potassium ion measurements in the physiologically significant concentration range which, along with low cost of their production, makes them promising for cited application. 相似文献
7.
E. V. Anishchenko N. S. Eremina N. A. Gavrilenko G. M. Mokrousov 《Russian Journal of Applied Chemistry》2006,79(3):453-456
The effect of silver ions on the physicochemical properties of methyl methacrylate-methacrylic acid copolymer films, namely, film-forming properties and resistance to fluorine-containing plasma, acid etchers, and temperature, was studied by lithography, derivatography, atomic-force microscopy, and optical spectroscopy. The activation energies were calculated for thermal transformations in the copolymer with and without silver ion additions, when heated in air to 300°C. 相似文献
8.
V. V. Gavrilenko L. A. Chekulaeva I. A. Savitskaya I. A. Garbuzova 《Russian Chemical Bulletin》1992,41(11):1957-1959
A convenient and practical method is proposed for the synthesis of lanthanide and yttrium alkoxides. The method involves dissolving the metals or their hydrides in a solution of dry HCl in the corresponding alcohol, with subsequent dehalogenation of the LnCl3 solution by an equivalent amount of alkali metal (Na, Li), The rareearth alkoxides are easily converted into acetylacetonates Ln(acac)3 by the action of acetylacetone.A. N. Nesmeyanov Institute of Elementoorganic Compounds, Russian Academy of Sciences, 117813 Moscow. Translated fromIzvestiya Akademii Nauk, Seriya Khimicheskaya, No. 11, pp. 2490–2493, November, 1992. 相似文献
9.
Stimulated far IR emission due to l-h as well as cyclotron transitions of hot holes in uniaxially stressedp-Ge (P H E) was studied. The results obtained showed the significance of intersub-band hole tunnelling for these mechanisms of generation and may be explained by a change in tunnelling produced by the stress. A considerable expansion of the stimulated light hole cyclotron emission band was observed in a stressed crystal. This expansion allows covering (in one sample) of all generation bands in the light hole cyclotron resonance (CR) masers in unstressedp-Ge, reported so far. 相似文献
10.
A. A. Velichko V. A. Ilyushin A. U. Krupin V. A. Gavrilenko N. I. Filimonova 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2016,10(5):912-916
The results of analysis of the oscillation intensity of RHEED specular reflection during the MBE growth of CaF2/Si(111) structures in a wide temperature range from 100 to 600°С are presented. It is shown that the preliminary formation of a 2D Si buffer layer provides the two-dimensional growth of CaF2 layers. Possible reasons which for the disruption of 2D growth at high substrate temperatures are discussed. 相似文献