DICP OpenIR
Photofragment Imaging of HNCO decomposition at 210 nm: the primary NH(a(1)Delta)+CO(X-1 Sigma(+)) channel
Wang, Hua; Liu, Shi-Lin; Liu, Jie; Wang, Feng-Yan; Jiang, Be; Yang, Xue-Ming
关键词Isocyanic Acid Dissociation Dynamics Velocity Slice Imaging Dissociation Energy Fragment Angular Distribution Translational Energy Distribution
刊名CHINESE JOURNAL OF CHEMICAL PHYSICS
2007-08-27
DOI10.1088/1674-0068/20/04/388-394
20期:4页:388-394
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Atomic, Molecular & Chemical
研究领域[WOS]Physics
关键词[WOS]POTENTIAL-ENERGY SURFACE ; ISOCYANIC ACID HNCO ; PHOTODISSOCIATION DYNAMICS ; KETENE PHOTODISSOCIATION ; CORRELATED DISTRIBUTIONS ; STATE DISTRIBUTIONS ; INTERNAL-CONVERSION ; ANGULAR ANISOTROPY ; AB-INITIO ; ION
英文摘要The photodissociation of isocyanic acid (HNCO) on the first excited singlet state following the excitation at 210 nm was investigated with an ion velocity slice imaging technique by probing the GO fragment. It was found from the (2+1) resonance-enhanced multi-photon ionization (REMPI) spectrum that the CO fragments are rotationally hot with population up to J(max)=50. The velocity imagings of the GO fragments at J(CO)=30 and 35 indicate that formation of NH(alpha(1)Delta)+CO((XE+)-E-1, upsilon=0) is the predominant dissociation channel at 210 urn. From analysis of the GO fragment translational energy distributions, the NH(alpha(1 Delta)) fragment was observed to be rotationally cold, about half of the available energy was partitioned into the translational motion of fragments after dissociation, and the NH(alpha(1)Delta)+CO(X-1 Sigma(+)) dissociation threshold was determined at 42738 +/- 30 cm(-1). From analysis of the CO fragment angular distributions, the dissociation anisotropy parameter beta was found to be negative, and increasing with the rotational quantum number of the NH fragment, i.e., from -0.75 at J(NH)=2-4 to -0.17 at J(NH)=11. Impulsive direct and vertical dissociation process of HNCO on the singlet state at 210 nm was confirmed experimentally. A classical impact dissociation model was employed to explain the dependence of the beta value on the rotational excitation of the NH fragment.
语种英语
WOS记录号WOS:000249465100010
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140664
专题中国科学院大连化学物理研究所
作者单位1.Univ Sci & Technol China, Dept Chem Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
2.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
Wang, Hua,Liu, Shi-Lin,Liu, Jie,et al. Photofragment Imaging of HNCO decomposition at 210 nm: the primary NH(a(1)Delta)+CO(X-1 Sigma(+)) channel[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2007,20(4):388-394.
APA Wang, Hua,Liu, Shi-Lin,Liu, Jie,Wang, Feng-Yan,Jiang, Be,&Yang, Xue-Ming.(2007).Photofragment Imaging of HNCO decomposition at 210 nm: the primary NH(a(1)Delta)+CO(X-1 Sigma(+)) channel.CHINESE JOURNAL OF CHEMICAL PHYSICS,20(4),388-394.
MLA Wang, Hua,et al."Photofragment Imaging of HNCO decomposition at 210 nm: the primary NH(a(1)Delta)+CO(X-1 Sigma(+)) channel".CHINESE JOURNAL OF CHEMICAL PHYSICS 20.4(2007):388-394.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, Hua]的文章
[Liu, Shi-Lin]的文章
[Liu, Jie]的文章
百度学术
百度学术中相似的文章
[Wang, Hua]的文章
[Liu, Shi-Lin]的文章
[Liu, Jie]的文章
必应学术
必应学术中相似的文章
[Wang, Hua]的文章
[Liu, Shi-Lin]的文章
[Liu, Jie]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。