气候变化领域集成服务门户(CCPortal): Quantum interference in H + HD → H2 + D between direct abstraction and roaming insertion pathways

CCPortal

DOI	10.1126/science.abb1564
	Quantum interference in H + HD → H2 + D between direct abstraction and roaming insertion pathways
	Xie Y.; Zhao H.; Wang Y.; Huang Y.; Wang T.; Xu X.; Xiao C.; Sun Z.; Zhang D.H.; Yang X.
发表日期	2020
ISSN	0036-8075
起始页码	767
结束页码	771
卷号	368 期号:6492
英文摘要	Understanding quantum interferences is essential to the study of chemical reaction dynamics. Here, we provide an interesting case of quantum interference between two topologically distinct pathways in the H + HD → H2 + D reaction in the collision energy range between 1.94 and 2.21 eV, manifested as oscillations in the energy dependence of the differential cross section for the H2 (v′ = 2, j′ = 3) product (where v′ is the vibrational quantum number and j′ is the rotational quantum number) in the backward scattering direction. The notable oscillation patterns observed are attributed to the strong quantum interference between the direct abstraction pathway and an unusual roaming insertion pathway. More interestingly, the observed interference pattern also provides a sensitive probe of the geometric phase effect at an energy far below the conical intersection in this reaction, which resembles the Aharonov–Bohm effect in physics, clearly demonstrating the quantum nature of chemical reactivity. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	chemical reaction energetics oscillation probe quantum mechanics topology vibration article oscillation physics
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133500
推荐引用方式 GB/T 7714	Xie Y.,Zhao H.,Wang Y.,et al. Quantum interference in H + HD → H2 + D between direct abstraction and roaming insertion pathways[J]. Science,2020,368(6492).
APA	Xie Y..,Zhao H..,Wang Y..,Huang Y..,Wang T..,...&Yang X..(2020).Quantum interference in H + HD → H2 + D between direct abstraction and roaming insertion pathways.,368(6492).
MLA	Xie Y.,et al."Quantum interference in H + HD → H2 + D between direct abstraction and roaming insertion pathways".368.6492(2020).