High Resolution Crossed Molecular Beams Study of the H+HD -> H-2+D Reaction

Sang, Ji-wei1; Yuan, Dao-fu1; Chen, Wen-tao1; Yu, Sheng-rui2; Luo, Chang1; Wang, Si-wen1; Wang, Tao3,4; Yang, Xue-ming3,4; Wang, Xing-an1

2019-02

10.1063/1674-0068/cjcp1901010

化学物理学报   影响因子和分区

1674-0068

1003-7713

The H+H-2 reaction is the simplest chemical reaction system and has long been the prototype model in the study of reaction dynamics. Here we report a high resolution experimental investigation of the state-to-state reaction dynamics in the H+HD -> H-2+D reaction by using the crossed molecular beams method and velocity map ion imaging technique at the collision energy of 1.17 eV. D atom products in this reaction were probed by the near threshold 1+1'(vacuum ultraviolet+ultraviolet) laser ionization scheme. The ion image with both high angular and energy resolution were acquired. State-to-state differential cross sections was accurately derived. Fast forward scattering oscillations, relating with interference effects in the scattering process, were clearly observed for H-2 products at H-2(v'=0, j'=1) and H-2(v'=0, j'=3) rovibrational levels. This study further demonstrates the importance of measuring high-resolution differential cross sections in the study of state-to-state reaction dynamics in the gas phase.

Crossed molecular beams Velocity map ion imaging Threshold ionization Forward scattering oscillations High resolution Differential cross sections

SCI ; EI

英语

通讯

Strategic Priority Research Program of Chinese Academy of Sciences[XDB17000000]

Physics

Physics, Atomic, Molecular & Chemical

WOS:000461781200017

CHINESE PHYSICAL SOC

20213210736251

Atom lasers ; Dynamics ; Ionization of gases ; Ions ; Molecular beams ; Molecular imaging ; Ultraviolet lasers

Electromagnetic Waves:711 ; Lasers, General:744.1 ; Imaging Techniques:746 ; Chemical Reactions:802.2 ; Atomic and Molecular Physics:931.3

Web of Science

1.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China
2.Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou 311231, Zhejiang, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
4.Southern Univ Sci & Technol, Sch Sci, Dept Chem, Shenzhen 518055, Peoples R China

Sang, Ji-wei,Yuan, Dao-fu,Chen, Wen-tao,et al. High Resolution Crossed Molecular Beams Study of the H+HD -> H-2+D Reaction[J]. 化学物理学报,2019,32(1):123-128.

Sang, Ji-wei.,Yuan, Dao-fu.,Chen, Wen-tao.,Yu, Sheng-rui.,Luo, Chang.,...&Wang, Xing-an.(2019).High Resolution Crossed Molecular Beams Study of the H+HD -> H-2+D Reaction.化学物理学报,32(1),123-128.

Sang, Ji-wei,et al."High Resolution Crossed Molecular Beams Study of the H+HD -> H-2+D Reaction".化学物理学报 32.1(2019):123-128.