中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Electronic Population Inversion in HCCO/DCCO Products from Hyperthermal Collisions of O(P-3) with HCCH/DCCD
作者: Lahankar, Sridhar A.1;  Zhang, Jianming1;  Garashchuk, Sophya3;  Schatz, George C.4;  Minton, Timothy K.1, 2
刊名: JOURNAL OF PHYSICAL CHEMISTRY LETTERS
发表日期: 2013-04-18
DOI: 10.1021/jz400568t
卷: 4, 期:8, 页:1315-1321
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: The dynamics of hyperthermal O(P-3) reactions with acetylene have been investigated with the use of crossed molecular beams techniques, employing both mass spectrometric and optical detection of products. With collision energies of 40-150 kcal mol(-1), O(P-3) + HCCH/DCCD -> HCCO/DCCO + H/D may follow multiple pathways to form the ketenyl radical (HCCO or DCCO) in ground doublet states or in electronically excited quartet and doublet states. Theoretical calculations support the assignment of the various reaction pathways. The fraction of electronic excitation is substantial. At the highest collision energy studied, similar to 65% of the ketenyl radical products that survive are electronically excited, with the majority of the excited products in a quartet state. In this case, a population inversion exists between the electronically excited quartet and ground doublet states of the ketenyl product. Such significant electronic excitation in products is unusual in bimolecular reactions, especially when ground-state products are accessible by spin-allowed pathways.
关键词[WOS]: CROSSED MOLECULAR-BEAM ;  REACTIVE SCATTERING ;  DYNAMICS ;  HCCO ;  PHOTODISSOCIATION ;  COMBUSTION ;  EXAMPLE ;  ENERGY ;  STATE ;  PATH
语种: 英语
WOS记录号: WOS:000317950400014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137491
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Montana State Univ, Dept Chem & Biochem, Bozeman, MT 59717 USA
2.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China
3.Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA
4.Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

Recommended Citation:
Lahankar, Sridhar A.,Zhang, Jianming,Garashchuk, Sophya,et al. Electronic Population Inversion in HCCO/DCCO Products from Hyperthermal Collisions of O(P-3) with HCCH/DCCD[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2013,4(8):1315-1321.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Lahankar, Sridhar A.]'s Articles
 [Zhang, Jianming]'s Articles
 [Garashchuk, Sophya]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Lahankar, Sridhar A.]‘s Articles
 [Zhang, Jianming]‘s Articles
 [Garashchuk, Sophya]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace