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11.
L. I. Kuznetsova M. A. Fedotov E. N. Yurchenko 《Reaction Kinetics and Catalysis Letters》1989,39(2):393-398
In aqueous solution, PM12–nVnO40
–(3+n) (M=Mo,W) hetero-polyanions provide a much faster oxidation of NO than mononuclear VO
2
+
ions, yielding HNO2, NO
3
–
and reduced HPA.
, PM12–nVnO40 –(3+n) (M=Mo,W) , VO 2 + , NO HNO2 NO 3 – .相似文献
12.
Sergei N. Yurchenko Jürgen Breidung Walter Thiel 《Theoretical chemistry accounts》2005,114(4-5):333-340
We report a theoretical study of the ground electronic state of BiH3. The potential energy surface (PES) is obtained from coupled cluster CCSD(T) calculations with a large basis set (289 contracted
Gaussian functions). The previously available quartic force field (P4) is extended by adding the dominant quintic and sextic
stretching terms to yield improved potential functions in symmetry coordinates (P6) and Morse-type coordinates (M4). Second-order
rovibrational perturbation calculations on the P4-PES and full variational calculations on the P6-PES and M4-PES yield almost
identical vibrational term values which is rationalized by considering the local mode behavior of BiH3 and the Morse-type character of the M4-PES. The remaining deviations between the computed and observed vibrational term values
must thus be caused by imperfections in the CCSD(T) surface. A refinement of this ab initio surface by a restrained fit to
experimental data allows an essentially perfect reproduction of the observed vibrational term values. Variational calculations
on this refined surface provide predictions for several overtone and combination bands that have not yet been observed.
Dedicated to Hermann Stoll on the occasion of his 60th birthday 相似文献
13.
A. A. Belov É. N. Yurchenko T. V. Kramerova E. A. Chebaevskaya A. E. Feofilov 《Theoretical and Experimental Chemistry》1991,27(5):514-517
A discussion is presented of a discovery that the anionic part of sodium salts introduced into the catalyst by impregnation of -Al2O3 after deposition of palladium salts and their reduction in that catalyst affects the activity and dynamic properties of the catalysts in the oxidation reaction of CO into CO2 at stoichiometric ratios of CO/O2 = 2.Scientific-Production Association Gos. In-t Prikl. Khim., Leningrad. Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 27, No. 5, pp. 591–595, September–October, 1991. Original article submitted July 17, 1991. 相似文献
14.
Purinyl(theophyllinyl)-8-mercapto aldehydes and their acetals were synthesized by the reaction of 8-thio derivatives of purine and theophylline with -halo aldehydes and their acetals. The IR spectra demonstrated that the indicated aldehydes exist in the solid state as tautomeric forms — 3-hydroxy derivatives of thiazolino[2,3-f]purines(xanthines). Dehydration of the latter gave thiazolo[2,3-f]purine, 6,8-dimethylthiazolo[2,3-f]xanthine, and their 2-alkyl-substituted derivatives. The structures of the three-ring compounds were established by reductive desulfuration to 7-alkyl-substituted purines and theophyllines.See [1] for communication LXXVI.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 996–999, July, 1972. 相似文献
15.
E. N. Yurchenko N. G. Zubritskaya O. G. Korolkova G. N. Kustova A. V. Ziborov L. M. Plyasova 《Reaction Kinetics and Catalysis Letters》1991,44(1):223-228
IR spectroscopic and X-ray studies of variations in the composition of Ni, Cu and (Ni+Cu) ammonium chromates under thermal treatment show that the Ni–Cr system consists of spinel and NiO, and Cu–Cr systems consist of the spinel CuCr2O4 only. In mixed Ni–Cu–Cr systems part of Ni- and Cu-containing components remain independent and part of them form common Ni+Cu phases.
Ni-, Cu- (Ni+Cu)- . , Ni–Cr NiO, Cu–Cr — CuCr2O4. Ni–Cu–Cr Ni- Cu- , Ni+Cu .相似文献
16.
17.
18.
Litak Grzegorz Margielewicz Jerzy Gąska Damian Yurchenko Daniil Dąbek Krzysztof 《Nonlinear dynamics》2020,102(4):2125-2142
Nonlinear Dynamics - This paper examines the oscillations of a spherical pendulum with horizontal Lissajous excitation. The pendulum has two degrees of freedom: a rotational angle defined in the... 相似文献
19.
20.
Yurchenko D. A. Evstropiev S. K. Shashkin A. V. Knyazyan N. B. Manukyan G. G. Stolyarova V. L. 《Doklady Chemistry》2021,499(2):159-162
Doklady Chemistry - The capabilities of diffusion treatment of alkali-free MgO–Al2O3–TiO2–SiO2 glass using Ag-containing salt melts or special pastes for the formation of... 相似文献