The adsorption of polar molecules on the surface of graphite modified with a monomolecular layer of a mesogen

An equation for the potential energy of the interaction of a quasi-solid polar adsorbate molecule with a semiinfinite graphite crystal containing a monomolecular layer of polar anisometric particles on its surface was obtained. Adsorbate-modifier electrostatic interactions were considered in the dipole-dipole approximation. Dispersion interactions were described using the Lennard-Jones potentials (6, 12). The suggestion was made that a modifier monolayer impermeable to adsorbate molecules could be modeled by force centers that formed a two-dimensional translationally periodic lattice and by force centers uniformly distributed in a plane parallel to the outer face of graphite crystals.