Model of graphane-like $h$-$AB$–$C$ compounds

In analogy with graphane and fluorographene the model for the compounds $h$-$AB$–$C$, where $A$ and $B$ atoms occupy the sites of the flat hexagonal lattice and $C$ atoms, connected with $A$ and $B$ atoms, are placed by the opposite sides of the $AB$-list is proposed. Numerical estimations are fulfilled for the $h$-$A_3B_5$–$C_4$ compounds, where $A$, $B$ and $C$ are the atoms from the same row of the Periodic Table. Analytical results are obtained for the electronic spectrum, quantum capacitance, local defect states, force constants and characteristics phonon friquences.