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Striking Isotopologue-Dependent Photodissociation Dynamics of Water Molecules: The Signature of an Accidental Resonance

文献类型：期刊论文

作者Chang, Yao2; Chen, Zhichao2; Zhou, Jiami2; Luo, Zijie2; He, Zhigan2; Wu, Guorong2; Ashfold, Michael N. R.1; Yuan, Kaijun2; Yang, Xueming2
刊名JOURNAL OF PHYSICAL CHEMISTRY LETTERS
出版日期2019-08-01
卷号10期号:15页码:4209-4214
ISSN号1948-7185
DOI10.1021/acs.jpclett.9b01710
通讯作者Wu, Guorong(wugr@dicp.ac.cn) ; Yuan, Kaijun(kjyuan@dicp.ac.cn) ; Yang, Xueming(xmyang@dicp.ac.cn)
英文摘要Investigations of the photofragmentation patterns of both light and heavy water at the state-to-state level are a prerequisite for any thorough understanding of chemical processing and isotope heterogeneity in the interstellar medium. Here we reveal dynamical features of the dissociation of water molecules following excitation to the (C) over tilde (010) state using a tunable vacuum ultraviolet source in combination with the high-resolution H(D)-atom Rydberg tagging time-of-flight technique. The action spectra for forming H(D) atoms and the OH(OD) product state distributions resulting from excitation to the (C) over tilde (010) states of H2O and D2O both show striking differences, which are attributable to the effects of an isotopologue-specific accidental resonance. Such accidental-resonance-induced state mixing may contribute to the D/H isotope heterogeneity in the solar system. The present study provides an excellent example of competitive state-to-state nonadiabatic decay pathways involving at least five electronic states.
WOS关键词MULTIPHOTON IONIZATION SPECTROSCOPY ; 1ST ABSORPTION-BAND ; DISSOCIATION DYNAMICS ; STATE PHOTODISSOCIATION ; 121.6 NM ; H2O ; D2O ; PREDISSOCIATION ; PHOTOABSORPTION ; (B)OVER-TILDE
资助项目National Natural Science Foundation of China (NSFC)[21773236] ; National Natural Science Foundation of China (NSFC)[21673232] ; National Natural Science Foundation of China (NSFC)[21873099] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB 17000000] ; Chemical Dynamics Research Center[21688102] ; Engineering and Physical Sciences Research Council (EPSRC)[EP/L005913] ; NSFC Center for Chemical Dynamics ; State Key Program of National Natural Science Foundation of China[21833003]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000487181400010
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chemical Dynamics Research Center ; Chemical Dynamics Research Center ; Engineering and Physical Sciences Research Council (EPSRC) ; Engineering and Physical Sciences Research Council (EPSRC) ; NSFC Center for Chemical Dynamics ; NSFC Center for Chemical Dynamics ; State Key Program of National Natural Science Foundation of China ; State Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chemical Dynamics Research Center ; Chemical Dynamics Research Center ; Engineering and Physical Sciences Research Council (EPSRC) ; Engineering and Physical Sciences Research Council (EPSRC) ; NSFC Center for Chemical Dynamics ; NSFC Center for Chemical Dynamics ; State Key Program of National Natural Science Foundation of China ; State Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chemical Dynamics Research Center ; Chemical Dynamics Research Center ; Engineering and Physical Sciences Research Council (EPSRC) ; Engineering and Physical Sciences Research Council (EPSRC) ; NSFC Center for Chemical Dynamics ; NSFC Center for Chemical Dynamics ; State Key Program of National Natural Science Foundation of China ; State Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chemical Dynamics Research Center ; Chemical Dynamics Research Center ; Engineering and Physical Sciences Research Council (EPSRC) ; Engineering and Physical Sciences Research Council (EPSRC) ; NSFC Center for Chemical Dynamics ; NSFC Center for Chemical Dynamics ; State Key Program of National Natural Science Foundation of China ; State Key Program of National Natural Science Foundation of China
源URL[http://cas-ir.dicp.ac.cn/handle/321008/172803]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Wu, Guorong; Yuan, Kaijun; Yang, Xueming
作者单位1.Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 4S7 Zhongshan Rd, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Chang, Yao,Chen, Zhichao,Zhou, Jiami,et al. Striking Isotopologue-Dependent Photodissociation Dynamics of Water Molecules: The Signature of an Accidental Resonance[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2019,10(15):4209-4214.
APA Chang, Yao.,Chen, Zhichao.,Zhou, Jiami.,Luo, Zijie.,He, Zhigan.,...&Yang, Xueming.(2019).Striking Isotopologue-Dependent Photodissociation Dynamics of Water Molecules: The Signature of an Accidental Resonance.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,10(15),4209-4214.
MLA Chang, Yao,et al."Striking Isotopologue-Dependent Photodissociation Dynamics of Water Molecules: The Signature of an Accidental Resonance".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 10.15(2019):4209-4214.

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来源：大连化学物理研究所

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