Isomer-specific product formation in the proton transfer reaction of HOCO+ with CO

摘要: The proton transfer reaction HOCO++CO → HCO+/HOC+ has been studied using crossed-beam velocity map imaging. Angular and energy differential cross sections were obtained for collision energies from 0.3 to 2.3 eV. Scattering in forward direction together with a prominent scattering angle-dependent internal excitation is found at all energies. exothermic HCO+ product appears be very dominant even above the threshold formation of metastable HOC+ ion. To determine contribution different angular ranges, model developed. We obtain an upper limit isomer fraction <2%. In theoretical calculations, we find CO2-catalysed isomerisation channel energetically accessible. However, it may not have strong impact on ratio. Chemical dynamics simulations are needed shed more light this question.