Abstract

AbstractThe predissociative behavior of the H+3 system is studied from the point of view of purely vibrational coupling between the rotationally‐averaged motions of the neutral diatomic and the bound proton. By decoupling the effects of the usual rotational barriers from those induced by the potential strength as a function of relative separations, one is able to see that the vibrational interchannel coupling shows strong propensity and highly nonstatistical propagation among bound levels and that the inner chaotic motion often assumed for this system is mostly controlled by the presence of multiple angular momentum barriers. Tunneling through these multiple rotational momentum barriers appears to be responsible for the slow dissociation seen in spectroscopic experiments.

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