Influence of the reagent vibration on the stereo-dynamics of the reactions D^- + H₂ and H^- + D₂

Employing the quasi-classical trajectory method and the potential energy surface of Panda and Sathyamurhy Panda A N and Sathyamurthy N 2004 J. Chem. Phys. 121 9343, the effect of the reagent vibration on vector correlation of the ion-molecule reactions D^- + H₂ and H^- + D₂ is studied at a collision energy of 35.7 kcal/mol. Four generalized polarization-dependent differential cross sections (2\pi/σ)(dσ₀₀/dω_t),(2\pi/σ)(dσ₂₀/dω_t),(2\pi/σ)(dσ₂₂/dω_t), and (2\pi/σ)(dσ₂₀/dω_t) are presented in the centre-of-mass reference frame, separately. At the same time, the effects on the product angular distributions P(θ_r), P(\phi_r) and P(θ_r,\phi_r) of the title reactions are also analysed. The calculated results show that the scattering tendencies of the product HD, the alignment and the orientation of j' sensitively depend on reagent molecule vibration.