Zobrazeno 1 - 10
of 25
pro vyhledávání: '"M. Yu. Nikiforov"'
Publikováno v:
Russian Journal of Physical Chemistry A. 91:901-904
The effect of concentration on the self-diffusion coefficients of acetylsalicylic acid and methyl salicylate in methanol-d4 is investigated in the temperature range of 278–318 K using NMR. It is found that the self-diffusion coefficients increase a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::498fd308694d9b30e78d02f5de852e03
https://doi.org/10.1134/s0036024417050119
https://doi.org/10.1134/s0036024417050119
Publikováno v:
Russian Journal of Physical Chemistry B. 10:1166-1170
Analysis of the experimental data on the solubility of methylxanthines (theophylline and theobromine) in supercritical (SC) solvent CO2–methanol at various concentrations of methanol within the framework of the ASL model (Associated Solution + Latt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf68d285c6e92602344030c5d0185721
https://doi.org/10.1134/s1990793116070083
https://doi.org/10.1134/s1990793116070083
Publikováno v:
Russian Journal of Physical Chemistry B. 9:1054-1058
The caffeine–methanol association constant at 313 K has been determined by 1H NMR spectroscopy. The caffeine solubility in the supercritical carbon dioxide (SC-CO2)–methanol mixed solvent has been calculated using the association constant experim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ea0fddb9a82f2a2fe7d3f17ba136e20
https://doi.org/10.1134/s1990793115070076
https://doi.org/10.1134/s1990793115070076
Autor:
M. Yu. Nikiforov, G. A. Al’per, N. Zh. Mamardashvili, Galina M. Mamardashvili, Oscar I. Koifman, Ilya A. Khodov
Publikováno v:
Journal of Molecular Structure. 1081:426-430
Synthesis and NMR studies of Ru(II) and Sn(IV) tetraphenylporphyrins supramolecular complexes were carried out. The diffusion coefficients of the complexes, porphyrinates, and solvents were determined by DOSY NMR spectroscopy. By the method of spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4c4f22e3c3f4e836922caa8adc7e9cc
https://doi.org/10.1016/j.molstruc.2014.10.070
https://doi.org/10.1016/j.molstruc.2014.10.070
Autor:
Nikolaj Georgi, S.V. Efimov, G. A. Al’per, M. Yu. Nikiforov, Dmitriy S. Blokhin, Vladimir V. Klochkov, Ilya A. Khodov
Publikováno v:
Journal of Molecular Structure. 1035:358-362
Small organic molecules in dissolved state exist as an ensemble of conformers. In this work conformation of felodipine in dimethyl sulphoxide was studied and dominant stable conformers were determined. Effective interatomic distances were obtained by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cf8a673df039d5c945f1f59069d09b2
https://doi.org/10.1016/j.molstruc.2012.11.040
https://doi.org/10.1016/j.molstruc.2012.11.040
Publikováno v:
Journal of Structural Chemistry. 52:304-309
A method based on the statements of molecular association theory and a simple lattice model (ASL = Associated Solution + Lattice) is used to calculate the solubility of a series of porphyrin macrocycles (blood porphyrins) in binary solvents (tetrachl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::190d2ab82564150bbd07d85648ca23db
https://doi.org/10.1134/s0022476611020090
https://doi.org/10.1134/s0022476611020090
Publikováno v:
Russian Journal of Physical Chemistry A. 84:950-953
The kinematic viscosity and density of the methanol-n-decane system were measured at various temperatures at low n-decane concentrations (over the miscibility range). The theory of free volume with taking into account molecular association was used t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1beaf829997b50a164460522f77d1add
https://doi.org/10.1134/s0036024410060117
https://doi.org/10.1134/s0036024410060117
Publikováno v:
Russian Journal of Physical Chemistry A. 83:45-49
The enthalpies of solution of nonelectrolytes in mixed solvents were calculated using the Associated Solution + Lattice thermodynamic model, whose parameters are equilibrium constants, the enthalpies of formation of associates, and the energy of mutu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::359e22dd11b8201da4adc78aa98fceeb
https://doi.org/10.1134/s0036024409010105
https://doi.org/10.1134/s0036024409010105
Publikováno v:
Journal of Structural Chemistry. 49:1120-1123
Chemical shifts (c.s.) of 1H nuclei in methanol are measured for methanol-benzene and methanol-phenanthrene systems. A method to determine the equilibrium constant of the molecular association reaction by NMR spectroscopy data is proposed for systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6d8bdf6492e4e989e3953126690aa25
https://doi.org/10.1007/s10947-008-0189-y
https://doi.org/10.1007/s10947-008-0189-y
Publikováno v:
Russian Journal of Physical Chemistry. 82:222-227
The kinematic viscosity of n-nonane mixtures with propan-1-ol, butan-1-ol, and pentan-1-ol was measured over the temperature range 293.15–313.15 K. For all systems, negative deviations of viscosity from additive values were obtained; the deviations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f0334e8336becdbf845fa27bc2544fc
https://doi.org/10.1134/s0036024408020143
https://doi.org/10.1134/s0036024408020143