In this paper, we estimate the type of orientation of H2O molecules adsorbed on the surface of airgel nanopores based on experimental data on the broadening of the vibrational-rotational lines of the H2O molecule during its collisions with H2O molecules on the surface of the airgel in their chaotic and ordered orientation. It is shown that the experimental data are consistent with the model of orderly oriented H2O molecules on the surface of SiO2 nanopores.
Modeling of the water layer on the surface of airgel nanopores has been carried out. The interaction potentials between incident water molecule and water molecule adsorbed on the nanopore surface were calculated by the use B3LYP/6-31 + G (d) method. An analytical form of the isotropic potential was obtained.
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