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题名: The Energy Transfer Dynamics of He(2(3)S(1)) and Ne(P-3(0,2)) with NH3
作者: Wang Liming1;  Li Xuechu1;  Cheng Hong1;  Shen Guanlin1;  Lou Nanquan1
关键词: Dissociative excitation ;  Re-vibrational population ;  A-doublet ;  Emission rate
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 1995
DOI: 10.3866/PKU.WHXB19950807
卷: 11, 期:8, 页:704-709
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Energy transfer reactions from He(2(3)S(1)) and Ne(P-3(0,2)) to NH3 have been studied by observing emission spectra from excited fragments at crossed molecular beams. Metastable rare gas atoms are generated by de. discharge in the molecular beams, NH(A-X,c-a,c-b), NH1 (B-X) and H*-Balmer emission systems were observed in the He(2(3)S(1)) reaction, while only NH(A-X,c-a) was observed in the Ne(P-3(0,2)) reaction. The absolute cross section of NH(A,c) from He(2(3)S(1)) was determined to be sigma=0.56 angstrom(2) by using the reference-reaction method. The NH(c) has a large propensity to populate f rotational level in He(2(3)S(1))+NH3 reaction, and this is considered to come from a two-step dissociation process. The propensity is opposite to that of NH3 photolysis at 121.6nm. The rotational excitation of NH(A,v-1) is somewhat higher than that of NH(A,v=0) and this may be the result of a large half-collision parameter according to the phase-space theory including angular momentum conservation. The To-vibrational population of NH(A) and the rotational population of NH(c) can be intepreted with a simple phase-space theory of three-body dissociation in the reacton of Ne(P-3(0,2))+NH3.
语种: 英语
WOS记录号: WOS:000207590700007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141290
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.CAS, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Wang Liming,Li Xuechu,Cheng Hong,et al. The Energy Transfer Dynamics of He(2(3)S(1)) and Ne(P-3(0,2)) with NH3[J]. ACTA PHYSICO-CHIMICA SINICA,1995,11(8):704-709.
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