Xe-bearing hydrocarbon ions: Observation of Xe.acetylene+ and Xe.benzene+ radical cations and calculations of their ground state structures

â¿¢Xe.acetylene+ radical cation adduct is formed at nearly room temperature.â¿¢The Xe.acetylene+ adduct is covalently bound with a non-linear structure.â¿¢The Xe.benzene+ radical cation is a weakly bound complex stabilized mainly by ion-induced dipole interaction.