气候变化领域集成服务门户(CCPortal): Observation of an isomerizing double-well quantum system in the condensed phase

CCPortal

DOI	10.1126/science.aaz3407
	Observation of an isomerizing double-well quantum system in the condensed phase
	Lau J.A.; Choudhury A.; Chen L.; Schwarzer D.; Verma V.B.; Wodtke A.M.
发表日期	2020
ISSN	0036-8075
起始页码	175
结束页码	178
卷号	367 期号:6474
英文摘要	Molecular isomerization fundamentally involves quantum states bound within a potential energy function with multiple minima. For isolated gas-phase molecules, eigenstates well above the isomerization saddle points have been characterized. However, to observe the quantum nature of isomerization, systems in which transitions between the eigenstates occur-such as condensed-phase systems-must be studied. Efforts to resolve quantum states with spectroscopic tools are typically unsuccessful for such systems. An exception is CO adsorbed on NaCl(100), which is bound with the well-known OC-Na+ structure. We observe an unexpected upside-down isomer (CO-Na+) produced by infrared laser excitation and obtain well-resolved infrared fluorescence spectra from highly energetic vibrational states of both orientational isomers. This distinctive condensed-phase system is ideally suited to spectroscopic investigations of the quantum nature of isomerization. © 2020 American Association for the Advancement of Science. All rights reserved.
英文关键词	chemical compound; chemical reaction; condensation; detection method; observational method; potential energy; absorption; Article; chemical analysis; condensed phase system; energy transfer; Fourier transform infrared spectroscopy; isomerization; laser induced fluorescence spectroscopy; molecular dynamics; physical parameters; physical phase; priority journal; quantum chemistry; quantum mechanics; spectroscopy
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244454
作者单位	Institute for Physical Chemistry, University of Göttingen, Tammannstr. 6, Göttingen, 37077, Germany; Department of Dynamics at Surfaces, Max-Planck Institute for Biophysical Chemistry, Am Faßberg 11, Göttingen, 37077, Germany; National Institute of Standards and Technology, Boulder, CO 80305, United States; International Center for Advanced Studies of Energy Conversion, Georg-August University of Göttingen, Tammannstraße 6, Göttingen, 37077, Germany; State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
推荐引用方式 GB/T 7714	Lau J.A.,Choudhury A.,Chen L.,et al. Observation of an isomerizing double-well quantum system in the condensed phase[J],2020,367(6474).
APA	Lau J.A.,Choudhury A.,Chen L.,Schwarzer D.,Verma V.B.,&Wodtke A.M..(2020).Observation of an isomerizing double-well quantum system in the condensed phase.Science,367(6474).
MLA	Lau J.A.,et al."Observation of an isomerizing double-well quantum system in the condensed phase".Science 367.6474(2020).