Stereodynamics study of reactions N(~2D)+HD→NH+D and ND+H

The product polarizations of the title reactions are investigated by employing the quasi-classical trajectory (QCT) method. The four generalized polarization-dependent differential cross-sections (PDDCSs) (27π/σ)(dσ00/dωt), (27π/σ)(dσ20/dωt), (2π/σ)(dσ22+/dωt), and (2π/σ)(dσ21–/dωt) are calculated in the centre-of-mass frame. The distribution of the angle between k and j', P(θr), the distribution of the dihedral angle denoting k–k'–j' correlation, P(r), as well as the angular distribution of product rotational vectors in the form of polar plots P(θr,r) are calculated. The isotope effect is also revealed and primarily attributed to the difference in mass factor between the two title reactions.