The H+H2 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→H2+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 H2 products at H2(v′=0, j′=1) and H2(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.
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February 2019
Research Article|
February 01 2019
High resolution crossed molecular beams study of the H+HD→H2+D reaction†
Special Collection:
Special Issue dedicated to Professor Kopin Liu on his 70th Birthday
Ji-wei Sang;
Ji-wei Sang
a
Department of Chemical Physics, University of Science and Technology of China
, Hefei 230026, China
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Dao-fu Yuan;
Dao-fu Yuan
a
Department of Chemical Physics, University of Science and Technology of China
, Hefei 230026, China
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Wen-tao Chen;
Wen-tao Chen
a
Department of Chemical Physics, University of Science and Technology of China
, Hefei 230026, China
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Sheng-rui Yu;
Sheng-rui Yu
b
Hangzhou Institute of Advanced Studies, Zhejiang Normal University
, Hangzhou 311231, China
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Chang Luo;
Chang Luo
a
Department of Chemical Physics, University of Science and Technology of China
, Hefei 230026, China
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Si-wen Wang;
Si-wen Wang
a
Department of Chemical Physics, University of Science and Technology of China
, Hefei 230026, China
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Tao Wang;
Tao Wang
c
Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
d
Department of Chemistry, School of Science, Southern University of Science and Technology
, Shenzhen 518055, China
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Xue-ming Yang;
Xue-ming Yang
*
c
Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
d
Department of Chemistry, School of Science, Southern University of Science and Technology
, Shenzhen 518055, China
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Xing-an Wang
Xing-an Wang
*
a
Department of Chemical Physics, University of Science and Technology of China
, Hefei 230026, China
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†
Dedicated to Professor Kopin Liu on the occasion of his 70th birthday.
Chin. J. Chem. Phys. 32, 123–128 (2019)
Article history
Received:
January 12 2019
Accepted:
January 21 2019
Citation
Ji-wei Sang, Dao-fu Yuan, Wen-tao Chen, Sheng-rui Yu, Chang Luo, Si-wen Wang, Tao Wang, Xue-ming Yang, Xing-an Wang; High resolution crossed molecular beams study of the H+HD→H2+D reaction. Chin. J. Chem. Phys. 1 February 2019; 32 (1): 123–128. https://doi.org/10.1063/1674-0068/cjcp1901010
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