Physico-chemical properties of C 70 -L-threonine bisadduct (C 70 (C 4 H 9 NO 2 ) 2 ) aqueous solutions

Abstract

The paper is devoted to the physico-chemical investigation of the C 70 -Thr aqueous solutions. In the framework of our study, we measured densities (ρ), viscosities (η), refraction indexes (n D ) and surface tension (γ) in a wide range of concentrations. Experimental data on size distribution and ζ-potentials of the C 70 -Thr associates in aqueous solutions were obtained in the concentration range C = 0.001–5 g·dm −3 at 298.15 K. Using experimental data on the decreasing of the ice crystallization temperature in the C 70 -Thr–water binary system, the excess thermodynamic functions were calculated. Additionally, the structural and dynamic characteristics of the C 70 -Thr–water binary system were obtained on the basis of molecular dynamics method.