Intrinsic product polarization and branch ratio in theS(¹D, ³P)+HD reaction on three electronic states

The intrinsic product polarization and intramolecular isotope effect of the S(¹D, ³P)+HD reaction have been investigated on both the lowest singlet state (1A') and the triplet state (3A' and 3A'') potential energy surfaces by using quasi-classical trajectory and quantum mechanical methods. The calculations indicate that intramolecular isotope effects are different on the three electronic states. The stereodynamics study shows that the P(θ_r) distributions, P(φ_r) distributions, and polarization-dependent differential cross sections (PDDCSs) (00) are sensitive to mass factor and the product angular momentum vectors are not only aligned but also oriented.