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arXiv 2602.11397physics.chem-ph
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振动量子态调控的O2+与C3H4反应性

Vibrational Quantum-State-Controlled Reactivity in the O2+ + C3H4 Reaction

University of Colorado, Boulder(科罗拉多大学博尔德分校);Sandia National Laboratories(桑迪亚国家实验室);University of Birmingham(伯明翰大学)

C. Zagorec-Marks, G. S. Kocheril, T. Kieft, O. A. Krohn, C. Martí, T. P. Softley, J. Zádor, H. J. Lewandowski

AI总结:

本研究通过振动态调控揭示了O2+与C3H4反应中C2O+的特殊生成机制,展示了振动激发对反应路径的激活作用。

摘要:

量子态调控反应性是物理化学领域长期追求的目标。在本工作中,我们探讨了O2+在不同振动态与C3H4两种异构体(全部烯和丙炔)之间的离子-分子反应的振动态依赖行为。尽管大多数产物无论O2+的振动态如何均会形成,但分支比受振动激发影响,且新产物C2O+仅在激发态反应中出现。这种选择性形成C2O+表明振动激发可以有效激活反应路径,提供了量子态控制反应性的直接证据。这些结果代表了向分子系统中实现量子态控制化学目标的重要一步。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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