Effects of reagent rotation on interferences in the product angular distributions of chemical reactions.

ABSTRACT: Differential cross sections (DSCs) of the HD(v', j') product for the reaction of H atoms with supersonically cooled D₂ molecules in a small number of initial rotational states have been measured at a collision energy of 1.97 eV. These DCSs show an oscillatory pattern that results from interferences caused by different dynamical scattering mechanisms leading to products scattered into the same solid angle. The interferences depend on the initial rotational state j of the D₂(v = 0, j) reagent and diminish in strength with increasing rotation. We present here a detailed explanation for this behavior and how each dynamical scattering mechanism has a dependence on the helicity Ω, the projection of the initial rotational angular momentum <

SUBMITTER: Jambrina PG 

PROVIDER: S-EPMC5523120 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature