Quantum dynamical study on 15N ＋ 14N14N isotope exchange reactions at high energies

In this study, we conduct quantum dynamical calculations at relatively high energies on the exchange reaction 15N ＋ 14N14N →15N14N ＋ 14N on its ground electronic N3 (4A′′) potential energy surface (PES) utilizing the time-dependent wave packet (TDWP) propagation method. Our primary focus is on analyzing the reaction mechanism for 15N ＋ ortho-14N14N (j = 0) and para-14N14N (j = 1) cases. We also explore the influence of varying J (up to 120) of the three-body system and the initial vibrational level (ν = 1, 5, 10) of the diatom on the reaction probability (RP) for ortho and para configurations. [Display omitted] •Time-Dependent wave packet is employed to study the title reactions.•Ortho and para variants of the title reaction are investigated.•Meta-stable short lived quasi-bound complex formation is observed.•The effects on reaction threshold and reaction probability are investigated.