The transfer of the halogen atom X within (A⸳⸳X⸳⸳A)+ systems was calculated for A = NH3, OH2, and CH3, and where X=Cl, Br, and I. These potentials are similar to those computed for equivalent proton transfers. Each contains a single symmetric well for short R(A⸳⸳A) distances. As R is stretched a second minimum appears, separated from the first by a transfer barrier E† which climbs quickly as R is elongated. The central X prefers association with the N in asymmetric systems (H3NX⸳⸳OH2)+, but a second (H3N⸳⸳XOH2)+ minimum, albeit less stable than the first, can appear if R(N⸳⸳O) is stretched.