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1.
Gazizov M. B. Ismagilov R. K. Ivanova S. Yu. Karimova R. F. Pistsova A. L. Khairullin R. A. Gazizova N. N. Shaikhutdinova L. R. Gubaidullin A. T. Gnezdilov O. I. 《Russian Chemical Bulletin》2022,71(3):457-463
Russian Chemical Bulletin - Diethylphosphinylmethanehydrazide, the first representative of the phosphorylated formic acid hydrazides with three P—C bonds was obtained, which can exhibit... 相似文献
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I. F. Ismagilov D. A. Kuryashov A. R. Idrisov N. Yu. Bashkirtseva L. Ya. Zakharova S. V. Zakharov M. R. Alieva 《Russian Chemical Bulletin》2015,64(11):2601-2606
The quantitative characteristics of the temperature effect on the rheological properties of aqueous solutions of the anionic surfactant sodium methyl oleyl taurate (SMOT) are presented. An increase in the intensity of thermal motion of surfactant molecules on heating from 25 to 45 °С was shown to decrease the average contour length of SMOT micelles from 2 μm to 700 nm. The decrease in the length of cylindrical micelles is probably one of the main reasons for a substantial decrease in the viscosity of micellar solutions of the surfactant with temperature. 相似文献
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E. B. Rakhimova R. A. Ismagilov A. G. Ibragimov U. M. Dzhemilev 《Russian Journal of Organic Chemistry》2017,53(10):1578-1582
An efficient procedure has been developed for the synthesis of crown-like N-cycloalkyl-1,5,8-trithia-3-azacyclodecanes and N-cycloalkyl-1,11-dioxa-4,8-dithia-6-azacyclotridecanes by recyclization of saturated oxathiacycloalkanes with carbocyclic amines in the presence of SmCl3 · 6 H2O as catalyst. 相似文献
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L. B. Okhlopkova E. V. Matus I. Z. Ismagilov M. A. Kerzhentsev I. P. Prosvirin Z. R. Ismagilov 《Journal of Structural Chemistry》2013,54(6):1034-1043
A new method is developed to obtain nanosized catalytic Pt-Sn/TiO2 coatings on the inner surface of a capillary microreactor during adsorption of polynuclear carbonyl Pt-Sn complexes on mesoporous TiO2. Titanium oxide sol prepared in the presence of template (Pluronic F127 surfactant) is supported in dynamic mode. Pt-Sn bimetallic catalysts with an average particle size of 1.5–2 nm are synthesized by adsorption of the bimetallic [Pt3(CO)3(SnCl3)2(SnCl2·H2O)] n 2n? complex followed by thermal treatment. Physicochemical properties of samples (thickness, structure and morphology, chemical composition of the material, electronic state, specific surface area, pore volume and size distribution) are characterized by a set of methods (HR TEM, SEM, powder XRD, XRF, XPS, low-temperature nitrogen adsorption). Conditions to prepare the uniform non-peelable Pt-Sn/TiO2 coating on the inner surface of a silica capillary with good adhesion are determined. To increase the TiO2 thickness, multilayered TiO2 films are synthesized by layerby layer deposition. The coating thickness is found to increase with an increase in the capillary diameter. The coating of a capillary with a diameter of 0.55 mm after 14-fold deposition is characterized by a thickness of 2 μm and an average pore size of 5.4 nm. The solvent effect on the adsorption of Pt-Sn carbonyl complexes into the TiO2 support is studied. The amount of the adsorbed complex increases in the following order: ethanol < acetone ~ tetrahydrofuran. The physicochemical properties of the active component (surface concentration, dispersion, and composition) can be fine-tuned by varying the deposition method, precursor concentration in the initial solution, and temperature conditions of activation treatment. The catalyst activity in citral hydrogenation was 0.06–0.54 min?1, with the selectivity with respect to unsaturated alcohols reaching 90% at citral conversion above 95%. 相似文献
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T. F. Ismagilov 《Moscow University Mathematics Bulletin》2013,68(5):215-220
A class of functions with a dominating mixed modulus of smoothness is introduced in the paper. Embedding theorems are proved for this class. 相似文献
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R. S. Ismagilov 《Functional Analysis and Its Applications》1999,33(4):270-279
The minimal width of an arbitrary metric space is defined as the greatest lower bound of its Kolmogorov widths under all isometric
embeddings in all possible Banach spaces and is computed or estimated in a number of examples.
Supported by RFBR grant No. 96-15-96249.
Human Moscow State Technical University. Translated from Funktsional’nyi Analiz i Ego Prilozheniya, Vol. 33, No. 4, 49, October–December,
1999.
Translated by R. S. Ismagilov 相似文献
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