Doubly-charged gas phase cations
Theoretical Chemistry Accounts: Theory, Computation, And Modeling (Theoretica Chimica Acta)
Unique features of doubly-charged stable organic ions are examined and the results correlated with experimental observations. Self-consistent field molecular orbital methods are used to compute structures and stabilities of CnH 2 2+ (n=2–9) ions which are prominent in electron impact ionization of hydrocarbon molecules. A simple curve crossing model is employed to rationalize charge transfer reactions of these ions.
Shields, George C. and Moran, T.F.. "Doubly-charged gas phase cations." Theoretical Chemistry Accounts: Theory, Computation, And Modeling (Theoretica Chimica Acta) 69, no. 2 (1986) : 147-159.