Experimental studies of the dissociative recombination of CD3CDOD+ and CH3CH2OH2+
文献类型：期刊论文
| 作者 | Geppert, W. D.2; Hamberg, M.2; Zhaunerchyk, V.2,3; Vigren, E.2; Kaminska, M.1; Kashperka, I.2; Zhang, M.4; Trippel, S.5; Osterdahl, F.2; af Ugglas, M.2 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2010-11-01 |
| 卷号 | 522页码:8 |
| 关键词 | astrochemistry molecular processes plasmas methods: laboratory |
| ISSN号 | 0004-6361 |
| DOI | 10.1051/0004-6361/201014774 |
| 英文摘要 | Aims. We determine branching fractions, cross sections and thermal rate constants for the dissociative recombination of CD3CDOD+ and CH3CH2OH2+ at the low relative kinetic energies encountered in the interstellar medium. Methods. The experiments were carried out by merging an ion and electron beam at the heavy ion storage ring CRYRING, Stockholm, Sweden. Results. Break-up of the CCO structure into three heavy fragments is not found for either of the ions. Instead the CCO structure is retained in 23 +/- 3% of the DR reactions of CD3CDOD+ and 7 +/- 3% in the DR of CH3CH2OH2+, whereas rupture into two heavy fragments occurs in 77 +/- 3% and 93 +/- 3% of the DR events of the respective ions. The measured cross sections were fitted between 1-200 meV yielding the following thermal rate constants and cross-section dependencies on the relative kinetic energy: sigma(E-cm[eV]) = 1.7 +/- 0.3 x 10(-15)(Ecm[eV])(-1.23 +/- 0.02) cm(2) and k(T) = 1.9 +/- 0.4 x 10(-6)(T/300)-0.73 +/- 0.02 cm(3) s(-1) for CH3CH2OH2+ as well as k(T) = 1.1 +/- 0.4 x 10(-6)(T/300)(-0.74 +/- 0.05) cm(3) s(-1) and s(Ecm[eV]) = 9.2 +/- 4 x 10(-16)(Ecm[eV])-1.24 +/- 0.05 cm(2) for CD3CDOD+ |
| WOS关键词 | ABSOLUTE CROSS-SECTIONS ; BRANCHING RATIOS ; MOLECULAR-IONS ; INTERSTELLAR CLOUDS ; PROTONATED ETHANOL ; HIGH-RESOLUTION ; H3O+ ; CHEMISTRY ; COEFFICIENTS ; ASSOCIATION |
| 资助项目 | Swedish Research Council[2006-427] ; Swedish Space Board[76/06] ; Ministry of Science and Higher Education, Poland[N202 111 31/1194] ; COST ACTION[CM0805] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000284153100096 |
| 出版者 | EDP SCIENCES S A |
| 资助机构 | Swedish Research Council ; Swedish Space Board ; Ministry of Science and Higher Education, Poland ; COST ACTION |
| 公开日期 | 2011-05-16 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/8283]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） |
| 通讯作者 | Hamberg, M. |
| 作者单位 | 1.Jan Kochanowski Univ Humanities & Sci, Inst Phys, PL-25406 Kielce, Poland 2.Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden 3.Radboud Univ Nijmegen, Inst Mol & Mat, NL-6500 GL Nijmegen, Netherlands 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 5.Univ Freiburg, Dept Phys, D-79104 Freiburg, Germany 6.Manne Siegbahn Lab, S-11418 Stockholm, Sweden |
| 推荐引用方式 GB/T 7714 | Geppert, W. D.,Hamberg, M.,Zhaunerchyk, V.,et al. Experimental studies of the dissociative recombination of CD3CDOD+ and CH3CH2OH2+[J]. ASTRONOMY & ASTROPHYSICS,2010,522:8. |
| APA | Geppert, W. D..,Hamberg, M..,Zhaunerchyk, V..,Vigren, E..,Kaminska, M..,...&Larsson, M..(2010).Experimental studies of the dissociative recombination of CD3CDOD+ and CH3CH2OH2+.ASTRONOMY & ASTROPHYSICS,522,8. |
| MLA | Geppert, W. D.,et al."Experimental studies of the dissociative recombination of CD3CDOD+ and CH3CH2OH2+".ASTRONOMY & ASTROPHYSICS 522(2010):8. |
入库方式： OAI收割
来源：近代物理研究所
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