DICP OpenIR
Rotational state specific dissociation dynamics of D2O via the (C)over-tilde electronic state
Cheng, Yuan1; Cheng, Lina1; Guo, Qing1; Yuan, Kaijun1; Dai, Dongxu1; Wang, Xiuyan1; Dixon, Richard N.2; Yang, Xueming1
刊名JOURNAL OF CHEMICAL PHYSICS
2010-07-21
DOI10.1063/1.3457942
133期:3
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Atomic, Molecular & Chemical
研究领域[WOS]Physics
关键词[WOS]MULTIPHOTON IONIZATION SPECTROSCOPY ; 2ND ABSORPTION-BAND ; OH PROMPT EMISSION ; PHOTODISSOCIATION DYNAMICS ; 121.6 NM ; HOD PHOTODISSOCIATION ; VACUUM-ULTRAVIOLET ; 2 COMETS ; H2O ; WATER
英文摘要The rotational state resolved photodissociation dynamics of D2O via the C state has been investigated using the D-atom Rydberg "tagging" time-of-flight technique, with a tunable vacuum ultraviolet photolysis light source. The photodissociation action spectrum of the D2O (C) over tilde <-(X) over tilde (3p(z) <- 1b(1)) band has been recorded. The linewidths of rotational transitions have been determined by the Lorentzian profile simulation. Product kinetic energy distributions and angular distributions for individual rotational lines have been measured. From these distributions, the internal state distributions of the OD radical product as well as the state resolved angular anisotropy parameters for each rotational transition have been obtained. The dramatic variation of the OD product state distributions from different rotational excitations has been observed. These results suggest that there are two distinctive coupling channels from the (C) over tilde state to the lower electronic states: homogenous electronic coupling to the (A) over tilde(B-1(1)) state, resulting in a vibrationally hot OD(X (2)Pi) product and Coriolis-type coupling between the (C) over tilde(B-1(1)) state and the (B) over tilde((1)A(1)) state. Through the second mechanism, OD(X (2)Pi) as well as OD(A (2)Sigma(+)) products are produced. The OD(X (2)Pi) products are mainly populated in the vibrationally cold but extremely rotationally excited states. The comparison between the D2O and H2O results illustrates that the (C) over tilde(B-1(1)) -> (B) over tilde((1)A(1)) pathway is relatively larger in the D2O photodissociation as a consequence of the isotopic effect. (C) 2010 American Institute of Physics. [doi:10.1063/1.3457942]
语种英语
WOS记录号WOS:000280596900029
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142067
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
推荐引用方式
GB/T 7714
Cheng, Yuan,Cheng, Lina,Guo, Qing,et al. Rotational state specific dissociation dynamics of D2O via the (C)over-tilde electronic state[J]. JOURNAL OF CHEMICAL PHYSICS,2010,133(3).
APA Cheng, Yuan.,Cheng, Lina.,Guo, Qing.,Yuan, Kaijun.,Dai, Dongxu.,...&Yang, Xueming.(2010).Rotational state specific dissociation dynamics of D2O via the (C)over-tilde electronic state.JOURNAL OF CHEMICAL PHYSICS,133(3).
MLA Cheng, Yuan,et al."Rotational state specific dissociation dynamics of D2O via the (C)over-tilde electronic state".JOURNAL OF CHEMICAL PHYSICS 133.3(2010).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Cheng, Yuan]的文章
[Cheng, Lina]的文章
[Guo, Qing]的文章
百度学术
百度学术中相似的文章
[Cheng, Yuan]的文章
[Cheng, Lina]的文章
[Guo, Qing]的文章
必应学术
必应学术中相似的文章
[Cheng, Yuan]的文章
[Cheng, Lina]的文章
[Guo, Qing]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。