Photodissociation dynamics of H2O at 111.5 nm by a vacuum ultraviolet free electron laser
文献类型：期刊论文
| 作者 | Wang, Xingan3; Yu, Yong1; Chang, Yao1,3; Su, Shu1; Yu, Shengrui4; Li, Qinming1; Tao, Kai1; Ding, Hongli1; Yang, Jaiyue1; Wang, Guanglei1 |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2018-03-28 |
| 卷号 | 148期号:12 |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/1.5022108 |
| 文献子类 | Article |
| 英文摘要 | Photodissociation dynamics of H2O via the (F) over tilde state at 111.5 nm were investigated using the high resolution H-atom Rydberg "tagging" time-of-flight (TOF) technique, in combination with the tunable vacuum ultraviolet free electron laser at the Dalian Coherent Light Source. The product translational energy distributions and angular distributions in both parallel and perpendicular directions were derived from the recorded TOF spectra. Based on these distributions, the quantum state distributions and angular anisotropy parameters of OH (X) and OH (A) products have been determined. For the OH (A) + H channel, highly rotationally excited OH (A) products have been observed. These products are ascribed to a fast direct dissociation on the (B) over tilde (1)A(1) state surface after multi-step internal conversions from the initial excited (F) over tilde state to the (B) over tilde state. While for the OH (X) + H channel, very highly rotationally excited OH (X) products with moderate vibrational excitation are revealed and attributed to the dissociation via a nonadiabatic pathway through the well-known two conical intersections between the (B) over tilde -state and the (X) over tilde -state surfaces. Published by AIP Publishing. |
| WOS关键词 | MULTIPHOTON IONIZATION SPECTROSCOPY ; A-STATE PHOTODISSOCIATION ; 2ND ABSORPTION-BAND ; RYDBERG STATES ; PREDISSOCIATION DYNAMICS ; DISSOCIATION DYNAMICS ; WATER MOLECULE ; D2O ; PATHWAYS ; DISTRIBUTIONS |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000428866500059 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169042]  |
| 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 |
| 通讯作者 | Wang, Xingan; Che, Li; Yuan, Kaijun; Yang, Xueming |
| 作者单位 | 1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China 2.Dalian Maritime Univ, Coll Environm Sci & Engn, 1 Linghai Rd, Dalian 116026, Liaoning, Peoples R China 3.Univ Sci & Technol China, Sch Chem & Mat Sci, Collaborat Innovat Ctr Chem Energy Mat, Dept Chem Phys ,Ctr Adv Chem Phys,iChEM, Jinzhai Rd 96, Hefei 230026, Anhui, Peoples R China 4.Zhejiang Normal Univ, Hangzhou Inst Adv Studies, 1108 Gengwen Rd, Hangzhou 311231, Zhejiang, Peoples R China 5.Dalian Maritime Univ, Coll Sci, 1 Linghai Rd, Dalian 116026, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xingan,Yu, Yong,Chang, Yao,et al. Photodissociation dynamics of H2O at 111.5 nm by a vacuum ultraviolet free electron laser[J]. JOURNAL OF CHEMICAL PHYSICS,2018,148(12). |
| APA | Wang, Xingan.,Yu, Yong.,Chang, Yao.,Su, Shu.,Yu, Shengrui.,...&Wang, Heilong.(2018).Photodissociation dynamics of H2O at 111.5 nm by a vacuum ultraviolet free electron laser.JOURNAL OF CHEMICAL PHYSICS,148(12). |
| MLA | Wang, Xingan,et al."Photodissociation dynamics of H2O at 111.5 nm by a vacuum ultraviolet free electron laser".JOURNAL OF CHEMICAL PHYSICS 148.12(2018). |
入库方式： OAI收割
来源：大连化学物理研究所
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