气候变化领域集成服务门户(CCPortal): Observation of the fastest chemical processes in the radiolysis of water

CCPortal

DOI	10.1126/science.aaz4740
	Observation of the fastest chemical processes in the radiolysis of water
	Loh Z.-H.; Doumy G.; Arnold C.; Kjellsson L.; Southworth S.H.; Al Haddad A.; Kumagai Y.; Tu M.-F.; Ho P.J.; March A.M.; Schaller R.D.; Bin Mohd Yusof M.S.; Debnath T.; Simon M.; Welsch R.; Inhester L.; Khalili K.; Nanda K.; Krylov A.I.; Moeller S.; Coslovich G.; Koralek J.; Minitti M.P.; Schlotter W.F.; Rubensson J.-E.; Santra R.; Young L.
发表日期	2020
ISSN	0036-8075
起始页码	179
结束页码	182
卷号	367 期号:6474
英文摘要	Elementary processes associated with ionization of liquid water provide a framework for understanding radiation-matter interactions in chemistry and biology. Although numerous studies have been conducted on the dynamics of the hydrated electron, its partner arising from ionization of liquid water, H2O+, remains elusive. We used tunable femtosecond soft x-ray pulses from an x-ray free electron laser to reveal the dynamics of the valence hole created by strong-field ionization and to track the primary proton transfer reaction giving rise to the formation of OH. The isolated resonance associated with the valence hole (H2O+/OH) enabled straightforward detection. Molecular dynamics simulations revealed that the x-ray spectra are sensitive to structural dynamics at the ionization site. We found signatures of hydrated-electron dynamics in the x-ray spectrum. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	water chemical composition electron spin resonance hydroxide ionization laser spectral analysis Article chemical analysis ionization ionizing radiation molecular dynamics molecular probe priority journal proton transport quantum yield radiation absorption radiolysis X ray spectroscopy
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/133800
推荐引用方式 GB/T 7714	Loh Z.-H.,Doumy G.,Arnold C.,et al. Observation of the fastest chemical processes in the radiolysis of water[J]. Science,2020,367(6474).
APA	Loh Z.-H..,Doumy G..,Arnold C..,Kjellsson L..,Southworth S.H..,...&Young L..(2020).Observation of the fastest chemical processes in the radiolysis of water.,367(6474).
MLA	Loh Z.-H.,et al."Observation of the fastest chemical processes in the radiolysis of water".367.6474(2020).