Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Thermodynamic Functions in the Binary System of a C60 Fullerene Derivative with Methionine Amino Acid–Н2О. / Semenov, K. N.; Charykov, N. A.; Kurilenko, A. V.; Keskinov, V. A.; Shaimardanov, Zh K.; Shaimardanova, B. K.; Kulenova, N. A.; Matuzenko, M. Yu; Klepikov, V. V.
в: Russian Journal of Physical Chemistry A, Том 94, № 4, 01.04.2020, стр. 698-703.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Thermodynamic Functions in the Binary System of a C60 Fullerene Derivative with Methionine Amino Acid–Н2О
AU - Semenov, K. N.
AU - Charykov, N. A.
AU - Kurilenko, A. V.
AU - Keskinov, V. A.
AU - Shaimardanov, Zh K.
AU - Shaimardanova, B. K.
AU - Kulenova, N. A.
AU - Matuzenko, M. Yu
AU - Klepikov, V. V.
N1 - Funding Information: This work was supported by the Russian Foundation for Basic Research, project nos. 18-08-00143 А, 19-015-00469 А, and 19-016-00003 А. Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Abstract: The temperature of the onset of ice crystallization (∆Т) is determined for binary aqueous solutions of a water-soluble tris-adduct of light fullerene with methionine С60(C5H11NO2S)3 in the temperature range of 272.58–273.15 K. It is found that the bis-adduct concentration varies over a wide range of the mole fraction scale: x = 0.000–7.71 × 10−5 arb. units. Liquidus temperatures are measured using a Beckmann thermometer with a linear scale resolution of ∆T/∆h ≈ 0.01 K/mm. Partial molar excess functions are calculated for H2O. An original semi-empirical VD-AS model is developed to provide a thermodynamic description of such systems. This model is based on a virial expansion of the molar Gibbs energy in terms of mole fractions of components in the solution. Partial molar functions of the bis-adduct are calculated using the VD-AS model. The excess and average total molar Gibbs energies of solutions and gaps in concentration miscibility are calculated. It is concluded that the VD-AS model accurately describes the processes of pre-lamination or microheterogeneous structure formation.
AB - Abstract: The temperature of the onset of ice crystallization (∆Т) is determined for binary aqueous solutions of a water-soluble tris-adduct of light fullerene with methionine С60(C5H11NO2S)3 in the temperature range of 272.58–273.15 K. It is found that the bis-adduct concentration varies over a wide range of the mole fraction scale: x = 0.000–7.71 × 10−5 arb. units. Liquidus temperatures are measured using a Beckmann thermometer with a linear scale resolution of ∆T/∆h ≈ 0.01 K/mm. Partial molar excess functions are calculated for H2O. An original semi-empirical VD-AS model is developed to provide a thermodynamic description of such systems. This model is based on a virial expansion of the molar Gibbs energy in terms of mole fractions of components in the solution. Partial molar functions of the bis-adduct are calculated using the VD-AS model. The excess and average total molar Gibbs energies of solutions and gaps in concentration miscibility are calculated. It is concluded that the VD-AS model accurately describes the processes of pre-lamination or microheterogeneous structure formation.
KW - cryometry
KW - fullerene С bis-adduct
KW - methionine
KW - thermodynamic model
KW - AQUEOUS-SOLUTIONS
KW - SOLID-SOLUTIONS
KW - LYSINE
KW - PHASE-EQUILIBRIA
KW - ELECTROLYTES
KW - SOLUBILITY
KW - PHYSICOCHEMICAL PROPERTIES
KW - fullerene C-60 bis-adduct
KW - EFFICIENT
KW - THREONINE
KW - WATER
UR - http://www.scopus.com/inward/record.url?scp=85083515132&partnerID=8YFLogxK
U2 - 10.1134/S0036024420040172
DO - 10.1134/S0036024420040172
M3 - Article
AN - SCOPUS:85083515132
VL - 94
SP - 698
EP - 703
JO - Russian Journal of Physical Chemistry A
JF - Russian Journal of Physical Chemistry A
SN - 0036-0244
IS - 4
ER -
ID: 70815026