Abstract
In a tandem mass spectrometer we have measured the excitation functions (reaction cross section as a function of collision energy) for the following solvated-ion reactant pairs: OH-.(H2O) + H2; OD-.(D2O) + D2; and OH-.(H2O) + D2—in the collision energy range 0–2 eV. Product channels include H3O--type production, collision-induced dissociation of reactants and products (OH- and H- types) and isotopic mixing. These solvated-ion reactions are used to correlate the reactivity of the isotope exchange reaction OH- + D2→OD- + HD occuring in the gas phase and solution, identifying a proton-transfer mechanism occuring within an H3O- intermediate.