Crossed Molecular Beam Study of the F+D-2 (v=1, j=0) Reaction

Huang, Long1,2; Xie, Yu-run1,2,4; Yang, Tian-gang1; Wang, Tao1,3; Dai, Dong-xu1; Xiao, Chun-lei1; Yang, Xue-ming1,3

2019-02

10.1063/1674-0068/cjcp1811251

化学物理学报   影响因子和分区

1674-0068

1003-7713

The reaction dynamics of the fluorine atom with vibrationally excited D-2 (v=1, j=0) was investigated using the crossed beam method. The scheme of stimulated Raman pumping was employed for preparation of vibrationally excited D-2 molecules. Contribution from the reaction of spin-orbit excited F*(P-2(1/2)) with vibrationally excited D-2 was not found. Reaction of spin-orbit ground F(P-2(3/2)) with vibrationally excited D-2 was measured and DF products populated in v'=2, 3, 4, 5 were observed. Compared with the vibrationally ground reaction, DF products from the vibrationally excited reaction of F(P-2(3/2))+D-2 (v=1, j=0) are rotationally "hotter". Differential cross sections at four collision energies, ranging from 0.32 kcal/mol to 2.62 kcal/mol, were obtained. Backward scattering dominates for DF products in all vibrational levels at the lowest collision energy of 0.32 kcal/mol. As the collision energy increases, angular distribution of DF products gradually shifts from backward to sideway. The collision-energy dependence of differential cross section of DF(v' =5) at forward direction was also measured. Forward-scattered signal of DF(v'=5) appears at the collision energy of 1.0 kcal/mol, and becomes dominated at 2.62 kcal/mol.

Stimulated Raman pumping D-2 vibrational excitation Molecular beam Forward scattering

SCI ; EI

英语

通讯

National Natural Science Foundation of China[21573226] ; National Natural Science Foundation of China[21822305]

Physics

Physics, Atomic, Molecular & Chemical

WOS:000461781200009

CHINESE PHYSICAL SOC

20213210737065

Angular distribution ; Molecular beams

Electromagnetic Waves:711 ; Atomic and Molecular Physics:931.3

Web of Science

1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Southern Univ Sci & Technol, Sch Sci, Dept Chem, Shenzhen 518055, Peoples R China
4.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China

Huang, Long,Xie, Yu-run,Yang, Tian-gang,et al. Crossed Molecular Beam Study of the F+D-2 (v=1, j=0) Reaction[J]. 化学物理学报,2019,32(1):72-76.

Huang, Long.,Xie, Yu-run.,Yang, Tian-gang.,Wang, Tao.,Dai, Dong-xu.,...&Yang, Xue-ming.(2019).Crossed Molecular Beam Study of the F+D-2 (v=1, j=0) Reaction.化学物理学报,32(1),72-76.

Huang, Long,et al."Crossed Molecular Beam Study of the F+D-2 (v=1, j=0) Reaction".化学物理学报 32.1(2019):72-76.