Rotational State Specific Dissociation Dynamics of HOD -> H plus OD via Two-Photon Excitation to the (C)over-tilde Electronic State

	Rotational State Specific Dissociation Dynamics of HOD -> H plus OD via Two-Photon Excitation to the (C)over-tilde Electronic State
	Cheng, Lina; Yuan, Kaijun; Cheng, Yuan; Guo, Qing; Wang, Tao; Dai, Dongxu; Yang, Xueming
刊名	journal of physical chemistry a
	2011-03-10
卷号	115 期号:9 页码:1500-1507
英文摘要	the dissociation dynamics of hod via two-photon excitation to the (c) over tilde state have been investigated using the h-atom rydberg tagging time-of-flight (tof) technique. the h-atom action spectrum for the c <- (x) over tilde transition shows resolved rotational structure. product translational energy distributions and angular distributions have also been recorded for the h + od channel for, three excited levels each with k-a = 2. from these distributions, quantum state distributions and angular anisotropy parameters (beta(2) and beta(4)) for the od product were determined. these results are consistent with the nonadiabatic predissociation picture illustrated in the one-photon dissociation process for h2o. the heterogeneous dissociation pathway via coriolis coupling is the dominant dissociation process in the present study. a high proportion of the total available energy is deposited into the rotational energy of the od product. the anisotropic recoil distributions reveal the distinctive contributions from the alignment of the excited states and the dissociation process. comparisons are also made between the results for hod and h2o via the equivalent rotational transitions. the oh bond energy, d-o(h-od), of the hod molecule is also determined to be 41283.0 +/- 5 cm(-1).
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, physical ; physics, atomic, molecular & chemical
研究领域[WOS]	chemistry ; physics
关键词[WOS]	multiphoton ionization spectroscopy ; photodissociation dynamics ; 121.6 nm ; molecular predissociation ; h2o ; water ; d2o ; photofragmentation ; bond ; distributions
收录类别	SCI
语种	英语
WOS记录号	WOS:000287832900006
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/142630]
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
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State key Lab Mol React Dynam, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Lina,Yuan, Kaijun,Cheng, Yuan,et al. Rotational State Specific Dissociation Dynamics of HOD -> H plus OD via Two-Photon Excitation to the (C)over-tilde Electronic State[J]. journal of physical chemistry a,2011,115(9):1500-1507.
APA	Cheng, Lina.,Yuan, Kaijun.,Cheng, Yuan.,Guo, Qing.,Wang, Tao.,...&Yang, Xueming.(2011).Rotational State Specific Dissociation Dynamics of HOD -> H plus OD via Two-Photon Excitation to the (C)over-tilde Electronic State.journal of physical chemistry a,115(9),1500-1507.
MLA	Cheng, Lina,et al."Rotational State Specific Dissociation Dynamics of HOD -> H plus OD via Two-Photon Excitation to the (C)over-tilde Electronic State".journal of physical chemistry a 115.9(2011):1500-1507.