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1.
S. R. Gadzhieva T. M. Mursalov K. T. Makhmudov F. G. Pashaev F. M. Chyragov 《Journal of Analytical Chemistry》2006,61(6):550-555
It is shown that 3-(2-hydroxyphenylazo)pentadione-2,4 (H2L) can exist in three tautomeric forms (enol-azo, keto-azo, and hydrazo). The effective atomic charges in the tautomeric forms
of H2L are calculated by the Hückel MO LCAO method. The molar fractions and molar absorptivities of the tautomers at different
pH are found. The complexation of copper(II) with H2L is studied by spectrophotometry. Beer’s law is obeyed for 0.51–5.12 μg/mL of copper. The assumed complex structure is given.
The effect of foreign ions and masking agents on the complexation is studied. A procedure for the photometric determination
of copper(II) in zinc-based alloys is proposed.
Original Russian Text ? S.R. Gadzhieva, T.M. Mursalov, K.T. Makhmudov, F.G. Pashaev, F.M. Chyragov, 2006, published in Zhurnal
Analiticheskoi Khimii, 2006, Vol. 61, No. 6, pp. 598–603. 相似文献
2.
Kovalchuk M. V. Borisov M. M. Garmatina A. A. Gordienko V. M. Zheltikov A. M. Kvardakov V. V. Korchuganov V. N. Likhachev I. A. Mareev E. I. Mitrofanov A. V. Nazarov M. M. Pashaev E. M. Potemkin F. V. Romanovskii Ya. O. Rudneva E. B. Sidorov-Biryukov D. A. Subbotin I. A. Chashchin M. V. Shcheglov P. A. Panchenko V. Ya. 《Crystallography Reports》2022,67(5):717-728
Crystallography Reports - The laser-synchrotron facility (LSF) of the National Research Centre “Kurchatov Institute” (NRC KI) is a unique research complex that combines unprecedented... 相似文献
3.
4.
M. A. Chuev I. A. Subbotin É. M. Pashaev V. V. Kvardakov B. A. Aronzon 《JETP Letters》2007,85(1):17-22
Nontrivial features of the formation of glancing incidence x-ray rocking curves from superlattices are revealed and analyzed for the magnetic digital alloy GaSb/15(Mn/GaSb)/GaAs. The qualitative analysis of the shape of the experimental curve in the framework of specific phase relations in the reflection amplitude makes it possible not only to describe these features, in particular, the two-humped profile of the first Bragg peak and to reconstruct the real structure of the alloys under investigation, but also to develop the general scheme for analyzing x-ray rocking curves from imperfect superlattices. 相似文献
5.
Budagov K. M. Guseinov A. G. Pashaev B. G. 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2017,91(3):595-598
The effect light has on a silicon liquid crystal–single crystal contact at different temperatures of the surface doping of silicon, and when BaTiO3 nanoparticles are added to the composition of a liquid crystal, is studied. The mechanism of the emergence of the photo-EMF in the liquid crystal–silicon structure is explained.
相似文献6.
7.
It is established that the Whitham–Broer–Kaup shallow water system and the “resonant” nonlinear Schrödinger equation are equivalent. A symmetric integrable 2+1‐dimensional version of the Whitham–Broer–Kaup system is constructed which, in turn, is equivalent to a recently introduced resonant Davey–Stewartson I system incorporating a Madelung–Bohm type quantum potential. A bilinear representation is adopted and resonant solitonic interaction in this new 2+1‐dimensional Kaup–Broer system is exhibited. 相似文献
8.
Theoretical and Mathematical Physics - The problem of Hadamard quantum coin measurement in $$n$$ trials, with an arbitrary number of repeated consecutive last states, is formulated in terms of... 相似文献
9.
Using the second flow (derivative reaction-diffusion system) and the third one of the dissipative SL(2, ℝ) Kaup-Newell hierarchy, we show that the product of two functions satisfying those systems is a solution of the modified Kadomtsev-Petviashvili equation in 2+1 dimensions with negative dispersion (MKP-II). We construct Hirota’s bilinear representations for both flows and combine them as the bilinear system for the MKP-II. Using this bilinear form, we find one- and two-soliton solutions for the MKP-II. For special values of the parameters, our solution shows resonance behavior with the creation of four virtual solitons. Our approach allows interpreting the resonance soliton as a composite object of two dissipative solitons in 1+1 dimensions.__________Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 144, No. 1, pp. 133–142, July, 2005. 相似文献
10.
I. I. Guseinov É. M. Imamov F. G. Pashaev E. Kh. Ismailov 《Journal of Structural Chemistry》1988,28(5):765-766
Kirov Azerbaidzhan University. Translated from Zhurnal Strukturnoi Khimii, Vol. 28, No. 5, pp. 148–149, September–October, 1987. 相似文献