| High Resolution Crossed Beams Scattering Study of the F＋HD→DF＋H Reaction |
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| 作者姓名： | Xing-an Wang, Li Che, Ze-feng Ren, Ming-hui Qiu, Dong-xu Dai, Xiu-yan Wang, Xue-ming Yang |
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| 作者单位： | [1]State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; [2]Department of Physics, Dalian Jiaotong University, Dalian 115028, China |
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| 基金项目： | V. ACKNOWLEDGMENTS This work was supported by the Chinese Academy of Sciences, the Ministry of Science and Technology, and the National Natural Science Foundation of China. |
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| 摘 要： | Crossed beams scattering study was carried out on the F＋HD→DF＋H reaction using high- resolution H-atom Rydberg tagging time-of-flight technique. Vibrational state-resolved differential cross sections were measured, with partial rotational state resolution, at eight collision energies in the range of 2.51-5.60 kJ/mol. Experimental results indicated that the product angular distributions are predominantly backward scattered. As the collision energy increases, the backward scattered peak becomes broader gradually. Dependence of product vibration branching ratios on the collision energy was also determined. The experimental results show that the DF products are highly inverted in the vibrational state distribution and the DF （v＇=3） product is the most populated state. Furthermore, the DF （v＇=l） product has also been observed at collision energy above 3.97 kJ/mol.
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| 关 键 词： | 反应散射 高分辨率 交叉梁 碰撞能量 振动状态 飞行技术 截面测量 旋转状态 |
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