Oriented ${\mathrm{N}}_2$ molecules intercalated in ${\mathrm{C}}_{24}$Rb

The intercalation of ${\mathrm{N}}_2$ molecules in ${\mathrm{C}}_{24}$Rb (prepared from highly oriented pyrolytic graphite) was studied using the nuclear-resonance photon scattering (NRPS) technique. It was found that nitrogen is intercalated in a molecular form with its molecular symmetry axis parallel to the graphene planes of the ${\mathrm{C}}_{24}$Rb and that this process occurs even at 296 K; the physintercalated amount of gas increases with increasing external pressure of the gas. The present work may also be viewed as a relatively simple method for preparing samples of molecular ${\mathrm{N}}_2$ at T≤296 K aligned with their molecular axes parallel to the graphene planes.