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The O++H2 prototypic ion–molecule reaction was recently studied in our group using the quasiclassical trajectory method on a ground model potential‐energy surface of the system inferred from both experimental and theoretical information and reasonable assumptions, fitted using a London–Eyring–Polanyi–Sato surface modified to include an ion–induced‐dipole interaction term. The theoretical results previously reported agreed rather well with the available experimental information. In view of the latest experimental findings, we present in this contribution the results of new trajectory calculations on the above‐mentioned surface, covering a wide range of relative translational energies of reactants. The accord between the experimental determinations and the present theoretical evaluations is excellent at relative energies below 1.0 eV, while for higher energies the potential‐energy surface, even though still yielding reasonably good results, provides a worse agreement. The observed discrepancies should be at...

the journal of chemical physics

A comparison between experimental and theoretical excitation functions for the O++H2 (4<i>A</i>″) system using trajectory calculations over a wide energy range

A comparison between experimental and theoretical excitation functions for the O++H2 (4A″) system using trajectory calculations over a wide energy range