Renner-Teller effects in HCO+ dissociative recombination

Mikhaylov, Ivan A.; Kokoouline, Viatcheslav; Larson, Asa; Tonzani, Stefano; Greene, Chris H.

Renner-Teller effects in HCO+ dissociative recombination

Authors

Mikhaylov, Ivan A.

Kokoouline, Viatcheslav

Larson, Asa

Tonzani, Stefano

Greene, Chris H.

Description

A theoretical description of the dissociative recombination process for the HCO+ ion suggests that the nonadiabatic Renner-Teller coupling between electronic and vibrational degrees of freedom plays an important role. This finding is consistent with a recent study of this process for another closed-shell molecule, the H3+ ion, where Jahn-Teller coupling was shown to generate a relatively high rate. The cross section obtained here for the dissociative recombination of HCO+exhibits encouraging agreement with a merged-beam experiment.
11 pages