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Conclusions The reaction of the tetraalkyl complexes of aluminum (MA1R4) with carbon dioxide was studied. In this reaction more than 3 Al-C bonds react with the formation of carboxylic acids.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1564–1565, July, 1971. 相似文献
355.
D. V. Kozlov V. Ya. Aleshkin V. I. Gavrilenko 《Journal of Experimental and Theoretical Physics》2001,93(6):1296-1301
The states of shallow acceptors in uniaxially deformed germanium are studied theoretically. A non-variational numerical computational method is developed for determining the energy and wave functions of localized states of holes in the acceptor field as well as the states of the continuous spectrum (including resonant impurity states). The dependence of the energy of the lower resonant state on strain is studied. It is found that this state is formed from the excited 4Γ 8 + state with a binding energy of 1.3 meV (in the absence of deformation) and not from the ground state. The results presented in this work may be useful in the study of the conditions for the generation of far IR radiation in deformed p-Ge, which involves optical transitions between resonant and localized acceptor states. 相似文献
356.
Zh. V. Faustova Yu. G. Slizhov M. A. Gavrilenko 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2013,87(7):1215-1217
New mesoporous materials prepared from tetraethoxysilane, i.e., sorbents obtained with the use of surfactants, are synthesized. Their chromatographic polarity is assessed quantitatively. Their Kovats retention indices and Rohrschneider polarity coefficients are calculated. Based on physicohemical data, it is demonstrated that modifying supports with metal chelates changes the structure and properties of the initial sorbents: the differential molar Gibbs free energies rise considerably for sorbent modified with copper acetylacetonate with respect to ethanol (?ΔG′ i = 7.09 kJ/mol) and nitromethane (?ΔG′ i = 6.75 kJ/mol), relative to the initial silica gel (5.43 and 4.15 kJ/mol, respectively). 相似文献
357.
Sh. K. Amerkhanova O. A. Nurkenov S. D. Fazylov R. M. Shlyapov M. A. Gavrilenko F. Zh. Bekkulina 《Russian Journal of General Chemistry》2013,83(5):983-985
Qualitative and quantitative assessment of the complexing ability of N-[2-(2-morpholinoacetyl)-hydrazinocarbothioyl]benzamide toward iron(II) ions is given. Stability constants of iron(II) complexes are determined. Thermodynamics of the complex-formation processes is considered. 相似文献