VUV Photodissociation Dynamics of Nitrous Oxide: The O(S-1(j=0)) and O(P-3(j=2,1,0)) Product Channels
文献类型：期刊论文
| 作者 | Yu, Shengrui1,2; Yuan, Daofu1,2; Chen, Wentao1,2; Yang, Xueming1,2,3; Wang, Xingan1,2,4 |
| 刊名 | journal of physical chemistry a
 |
| 出版日期 | 2015-07-23 |
| 卷号 | 119期号:29页码:8090-8096 |
| 英文摘要 | vacuum ultraviolet photodissociation dynamics of nitrous oxide was investigated using the time-sliced velocity ion imaging technique. images of the o(s-1(j=0)) and the o(p-3(j=2,1,0)) products were measured at nine photolysis wavelengths from 124.44 to 133.20 nm, respectively. three main dissociation channels: o(s-1(0)) + n-2(x-1 sigma(+)(g)), o(p-3(j=2,1,0)) + n-2(a(3)sigma(+)(u)), and o(p-3(j=2,1,0)) + n-2(b-3 pi(g)) were observed and identified in the product images where vibrational states of n2 were fully resolved. product total kinetic energy releases and angular distributions were acquired. in all product channels, the branching ratios of vibrational states of n-2 products were determined. in addition, the o(p-3(j=2,1,0)) + n-2(a(3)sigma(+)(u))/o(p-3(j=2,1,0)) + n-2(b-3 pi(g)) branching ratios were determined. we found that in the o(p-3(j=2,1,0)) channels the o(p-3(j=2,1,0)) + n-2(b-3 pi(g)) channel becomes dominant at long photolysis wavelength, indicating a strong coupling between the singlet d((1)sigma(+)(g)) state and the triplet (3)pi state. for both o(s-1(0)) and o(p-3(j=2,1,0)) products, the derived angular anisotropy parameters (beta values) are very close to 2 at lower vibrational states of the correlated n2 electronic states and gradually decrease with the increasing vibrational quantum number. these behaviors suggest that the photodissociation processes are primarily governed by a fast dissociation in a linear geometry, while the n-2 products at excited vibrational states are very likely produced via a more bent transition state. |
| 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] | vacuum uv ; n2o ; photolysis ; energy ; oxygen ; photofragments ; dissociation ; spectra |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358624200016 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146427]  |
| 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 | 1.Univ Sci & Technol China, Sch Chem & Mat Sci, Ctr Adv Chem Phys, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Sch Chem & Mat Sci, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning Provin, Peoples R China 4.Univ Sci & Technol China, iChEM Collaborat Innovat Ctr Chem Energy Mat, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Shengrui,Yuan, Daofu,Chen, Wentao,et al. VUV Photodissociation Dynamics of Nitrous Oxide: The O(S-1(j=0)) and O(P-3(j=2,1,0)) Product Channels[J]. journal of physical chemistry a,2015,119(29):8090-8096. |
| APA | Yu, Shengrui,Yuan, Daofu,Chen, Wentao,Yang, Xueming,&Wang, Xingan.(2015).VUV Photodissociation Dynamics of Nitrous Oxide: The O(S-1(j=0)) and O(P-3(j=2,1,0)) Product Channels.journal of physical chemistry a,119(29),8090-8096. |
| MLA | Yu, Shengrui,et al."VUV Photodissociation Dynamics of Nitrous Oxide: The O(S-1(j=0)) and O(P-3(j=2,1,0)) Product Channels".journal of physical chemistry a 119.29(2015):8090-8096. |
入库方式： OAI收割
来源：大连化学物理研究所
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