12254-68-1Relevant academic research and scientific papers
Thermal Energy Charge-Transfer Reactions of Ar+ and Ar2+
Shul, R. J.,Upschulte, B. L.,Passarella, R.,Keesee, R. G.,Castleman, A. W.
, p. 2556 - 2562 (1987)
The rate coefficients for a number of thermal energy charge-transfer reactions are obtained with a recently completed selected ion flow tube (SIFT).The ion-molecule reactions studied involve Ar+ and Ar2+ with a variety of neutral molecules including O2, CS2, CO2, SO2, H2O, H2S, NH3, NO, SF6, CH4, N2O, and CO.The relative magnitudes of the observed rate coefficients are not in accord with an energy resonance model which requires favorable Frank-Condon factors.Furthermore, we find that the dimer ion reaction rate constant is not always greater than that of the monomer with a special neutral although there is greater phase space in the case of the dimer where the dissociative channel leads to a three-body final state.However, the proximity of the recombination energy of Ar+ and Ar2+ to a band in the photoelectron spectra of the neutral appear to explain the relative rates of the monomer and the dimer reactions with a specific neutral.
