Single-electron charge transfer in collisions of CF2++ with Ar and Ne at collision energies 3-5eV

Non-dissociative, single-electron charge transfer processes between the dic ation CF2++ and Ar and Ne were investigated in crossed beam scattering expe riments at collision energies of 3.0 and 4.55eV (c.m.). The reaction with A r produces CF: in its ground state and, to a smaller extent, in the excited CF2+((IIu)-I-2) state. The reaction with Ne occurs only with an excited st ate of CF2++ lying about 4.4 eV above the ground state and present in a sma ll amount in the reactant dication beam; its molecular product is CF2+ in t he ground state.