title: Liquid-vapor coexistence in a primitive model for a room-temperature ionic liquid.
abstract: We present a primitive model for a room-temperature ionic liquid, where the cation is modeled as a charged hard spherocylinder of diameter sigma and length l and the anion as a charged hard sphere of diameter sigma. Liquid-vapor coexistence curves and critical parameters for this model have been studied by grand-canonical Monte Carlo methods. Our results show a decrease of both the critical temperature and density as the cation length l increases. These results are in qualitative agreement with recent experimental estimates of the critical parameters.
authors.forename: Marianela
authors.initials: M
authors.lastname: Martín-Betancourt
authors.forename: José M
authors.initials: JM
authors.lastname: Romero-Enrique
authors.forename: Luis F
authors.initials: LF
authors.lastname: Rull