23-03U

Ionic liquids (IL) and ionic solutions of complex molecular ions, due to their unique physicochemical properties, play an important role in fundamental research and modern technologies. A significant part of technological applications are based on the properties of IL in porous materials. We developed the theoretical approach for the description of the thermodynamic properties of IL in a disordered porous confinement with molecular ions presented as spherical anions and non-spherical (chain-like) cations. The approach combines the associative mean spherical approximation, the scale particle theory, and the Wertheim's thermodynamic perturbation theory. It allows us to calculate the gas-liquid phase diagrams of the models of IL in a disordered matrix of different porosity.