Identifying the Multielectron Effect on Chemical Bond Rearrangement of CH3Cl Molecules in Strong Laser Fields
| Autor: | Chuncheng Wang, Yu-Jun Yang, Jiaqi Yu, Xiaokai Li, Dajun Ding, Shushan Zhou, Pan Ma, Wenhui Hu, Sizuo Luo, Lanhai He, Fu-Ming Guo |
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| Rok vydání: | 2018 |
| Předmět: |
Chemistry
Linear polarization Double ionization Physics::Optics Electron 010402 general chemistry Laser 01 natural sciences Molecular physics 0104 chemical sciences law.invention Chemical bond law Ionization 0103 physical sciences Femtosecond Molecule Physics::Atomic Physics Physical and Theoretical Chemistry 010306 general physics |
| Zdroj: | The Journal of Physical Chemistry A. 122:8427-8432 |
| ISSN: | 1520-5215 1089-5639 |
| DOI: | 10.1021/acs.jpca.8b06415 |
| Popis: | Strong field double ionization that triggers the chemical bond rearrangement of CH3Cl is investigated by impulsive control of the alignment of molecules. The alignment and laser intensity dependent H2+ and H3+ yields in linearly polarized femtosecond laser have been measured, and the obtained data show that the maximum signal of H2+ appears at the laser polarization parallel to the C–Cl axis of molecules and H3+ species are more likely to eject at the laser polarization parallel to the C–Cl axis at low laser intensity while the H3+ signal peaks at laser polarization perpendicular to the C–Cl axis at high laser intensity. The measurements indicate that electrons from HOMO – 1 and HOMO – 2 orbitals have been ionized for the generation of bond rearrangement at different laser intensity. Our results demonstrate the importance of multielectron effects and also provide an effective control method in the process of chemical bond rearrangement of the molecules in strong laser fields. |
| Databáze: | OpenAIRE |
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