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Stereodynamical Control of D3+ Formation from the Bimolecular Photoreaction in the D2-D2 Dimer

We report the stereodynamic control of D3+ formation from the laser-induced bimolecular reaction in a weakly bound D2-D2 dimer via impulsive molecular alignment. Using a linearly polarized moderately intense femtosecond pump pulse, the D2 molecules in the dimer were prealigned prior to the bimolecul...

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Published in:The journal of physical chemistry letters 2023-11, Vol.14 (46), p.10348-10353
Main Authors: Zhou, Lianrong, Qiang, Junjie, Huang, Hao, Jiang, Zhejun, Pan, Shengzhe, Lu, Chenxu, Shi, Menghang, Ye, Zhengjun, Jiang, Wenyu, Zhang, Wenbin, Ni, Hongcheng, Chen, Gang, Lu, Peifen, Wu, Jian
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container_issue 46
container_start_page 10348
container_title The journal of physical chemistry letters
container_volume 14
creator Zhou, Lianrong
Qiang, Junjie
Huang, Hao
Jiang, Zhejun
Pan, Shengzhe
Lu, Chenxu
Shi, Menghang
Ye, Zhengjun
Jiang, Wenyu
Zhang, Wenbin
Ni, Hongcheng
Chen, Gang
Lu, Peifen
Wu, Jian
description We report the stereodynamic control of D3+ formation from the laser-induced bimolecular reaction in a weakly bound D2-D2 dimer via impulsive molecular alignment. Using a linearly polarized moderately intense femtosecond pump pulse, the D2 molecules in the dimer were prealigned prior to the bimolecular reaction triggered by a delayed probe pulse. The rotationally excited D2 in the dimer was observed to rotate freely as if it were a monomer. It was demonstrated that the yield of photoreaction product D3+ is increased or decreased when the molecular axis of D2 is parallel or perpendicular to the probe laser polarization, respectively. The underlying physics of this steric effect is the alignment-dependent bond cleavage of D2+ in the dimer induced by a photon-coupled parallel transition.
doi_str_mv 10.1021/acs.jpclett.3c02584
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title Stereodynamical Control of D3+ Formation from the Bimolecular Photoreaction in the D2-D2 Dimer
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