Cryometry data and excess thermodynamic functions in the binary system: water soluble bis-adduct of light fullerene C$_{70}$ with lysine. Assymmetrical thermodynamic model of virtual gibbs energy decomposition – VD-AS

The temperature of water-ice crystallization initiation decreases $(\Delta T)$ were determined in the binary water solutions of water soluble derivative of light fullerene C$_{70}$ with amino-acid lysine at 272.99 – 273.15 K. Partial molar excess functions for H$_2$O were calculated. For the thermodynamic description of our systems, we have elaborated an original semi-empirical model VD-AS (Virial Decomposition Asymmetric Model), based on the virial decomposition of the molar Gibbs energy of the component molar fractions in the solution. With the help of the VD-AS model, partial molar functions of nanoclusters were calculated. Excess and full average Gibbs energies for the solutions and miscibility gaps concentration regions (with the help of diffusional instability equations) were calculated. Thus, the VD-AS model excellently describes pre-delamination or micro-heterogeneous-structure formation in the considered solutions. These calculations were accordingly confirmed by dynamic light scattering data.