State-to-state dynamics of H+HD→H2+D at 0.5 eV: A combined theoretical and experimental study
Journal
Journal of Chemical Physics
Journal Volume
116
Journal Issue
12
Pages
4769-4772
Date Issued
2002
Author(s)
Abstract
The state-to-state dynamics of the H+HD→H2+D reaction at a collisional energy of 0.5 eV was studied experimentally using a crossed molecular beam apparatus using the H atom Rydberg “tagging” time-of-flight detection scheme, and modeled theoretically using a converged quantum scattering calculation on the ground potential energy surface. The experimental results agreed very well with the theoretical calculations without considering the geometrical phase at this collisional energy. The results indicate that the H+HD reaction at this energy is dominated by a simple rebound mechanism along a collinear reaction path. Both experimental and theoretical results show that the rotational state distribution of the H2 product is strongly influenced by nuclear spin statistics.
SDGs
Type
journal article