Cryometry and excess functions of the adduct of light fullerene C60 and arginine – C60(C6H12NaN4O2)8H8 aqueous solutions
https://doi.org/10.17586/2220-8054-2015-6-5-715-725
Abstract
Cryometry investigation of C60(C6H12NaN4O2)8H8 - H2O solutions was made over concentrations ranging from 0.1 – 10 g of fullerene-arginine adduct per 1 dm3 . Freezing point depression was measured for these aqueous solutions. Excess functions for water and fullerene-arginine adduct activities, activity coefficients and excess Gibbs energy of the solutions were calculated. All solutions demonstrate huge deviations from ideality. The last fact, to our opinion, is caused by the very specific – hierarchical type of association of fullerene-arginine adducts in aqueous solution components, which is proved by the results of our visible light scattering analysis.
Supporting agencies: Investigations were supported by Russian Found of Basic Research – RFBR (Project No. 15-08-08438) and with the help of the equipment of Resource Center ‘Geomodel’ (St. Petersburg State University).
About the Authors
M. Yu. Matuzenko
St. Petersburg State Technological Institute (Technical University)
Russian Federation
Russian Federation
St. Petersburg
A. A. Shestopalova
St. Petersburg State Technological Institute (Technical University)
Russian Federation
Russian Federation
St. Petersburg
K. N. Semenov
St. Petersburg State University
Russian Federation
Russian Federation
St. Petersburg
N. A. Charykov
St. Petersburg State Electro-technical University (LETI); St. Petersburg State Technological Institute (Technical University)
Russian Federation
Russian Federation
St. Petersburg
V. A. Keskinov
St. Petersburg State Technological Institute (Technical University)
Russian Federation
Russian Federation
St. Petersburg
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Review
For citations:
Matuzenko M.Yu., Shestopalova A.A., Semenov K.N., Charykov N.A., Keskinov V.A. Cryometry and excess functions of the adduct of light fullerene C60 and arginine – C60(C6H12NaN4O2)8H8 aqueous solutions. Nanosystems: Physics, Chemistry, Mathematics. 2015;6(5):715-725. https://doi.org/10.17586/2220-8054-2015-6-5-715-725
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