Vibrational Quantum-State-Controlled Reactivity in the O2+ + C3H4 Reaction
Abstract
Quantum-state-controlled reactivity is a long-standing goal in the field of physical chemistry. In this work, we explore the vibrational-state-dependent behavior of the ion-molecule reaction between O2+ in distinct vibrational states and two isomers of C3H4, allene (H2C3H2) and propyne (H3C3H). While most products are formed regardless of the vibrational state of O2+, the branching ratios are influenced by vibrational excitation, and a new product, C2O+, appears exclusively in the excited-state reactions. This selective formation of C2O+ demonstrates that vibrational excitation can effectively activate a reaction pathway, providing direct evidence of quantum-state control in reactivity. These results represent an important step towards the goal of quantum-state-controlled chemistry in molecular systems.
Keywords
Cite
@article{arxiv.2602.11397,
title = {Vibrational Quantum-State-Controlled Reactivity in the O2+ + C3H4 Reaction},
author = {C. Zagorec-Marks and G. S. Kocheril and T. Kieft and O. A. Krohn and C. Martí and T. P. Softley and J. Zádor and H. J. Lewandowski},
journal= {arXiv preprint arXiv:2602.11397},
year = {2026}
}