Differentiating Three-Dimensional Molecular Structures using Laser-induced Coulomb Explosion Imaging
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866917750975234048 |
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| author | Lam, Huynh Van Sa Venkatachalam, Anbu Selvam Bhattacharyya, Surjendu Chen, Keyu Borne, Kurtis Wang, Enliang Boll, Rebecca Jahnke, Till Kumarappan, Vinod Rudenko, Artem Rolles, Daniel |
| author_facet | Lam, Huynh Van Sa Venkatachalam, Anbu Selvam Bhattacharyya, Surjendu Chen, Keyu Borne, Kurtis Wang, Enliang Boll, Rebecca Jahnke, Till Kumarappan, Vinod Rudenko, Artem Rolles, Daniel |
| contents | Coulomb explosion imaging (CEI) with x-ray free electron lasers has recently been shown to be a powerful method for obtaining detailed structural information of gas-phase planar ring molecules [R. Boll et al. Nat. Phys. 18, 423-428 (2022)]. In this Letter, we investigate the potential of CEI driven by a tabletop laser and extend this approach to differentiating three-dimensional (3D) structures. We study the static CEI patterns of planar and nonplanar organic molecules that resemble the structures of typical products formed in ring-opening reactions. Our results reveal that each molecule exhibits a well-localized and distinctive pattern in 3D fragment-ion momentum space. We find that these patterns yield direct information about the molecular structures and can be qualitatively reproduced using a classical Coulomb explosion simulation. Our findings suggest that laser-induced CEI can serve as a robust method for differentiating molecular structures of organic ring and chain molecules. As such, it holds great promise as a method for following ultrafast structural changes, e.g., during ring-opening reactions, by tracking the motion of individual atoms in pump-probe experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_08389 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Differentiating Three-Dimensional Molecular Structures using Laser-induced Coulomb Explosion Imaging Lam, Huynh Van Sa Venkatachalam, Anbu Selvam Bhattacharyya, Surjendu Chen, Keyu Borne, Kurtis Wang, Enliang Boll, Rebecca Jahnke, Till Kumarappan, Vinod Rudenko, Artem Rolles, Daniel Atomic and Molecular Clusters Chemical Physics Quantum Physics Coulomb explosion imaging (CEI) with x-ray free electron lasers has recently been shown to be a powerful method for obtaining detailed structural information of gas-phase planar ring molecules [R. Boll et al. Nat. Phys. 18, 423-428 (2022)]. In this Letter, we investigate the potential of CEI driven by a tabletop laser and extend this approach to differentiating three-dimensional (3D) structures. We study the static CEI patterns of planar and nonplanar organic molecules that resemble the structures of typical products formed in ring-opening reactions. Our results reveal that each molecule exhibits a well-localized and distinctive pattern in 3D fragment-ion momentum space. We find that these patterns yield direct information about the molecular structures and can be qualitatively reproduced using a classical Coulomb explosion simulation. Our findings suggest that laser-induced CEI can serve as a robust method for differentiating molecular structures of organic ring and chain molecules. As such, it holds great promise as a method for following ultrafast structural changes, e.g., during ring-opening reactions, by tracking the motion of individual atoms in pump-probe experiments. |
| title | Differentiating Three-Dimensional Molecular Structures using Laser-induced Coulomb Explosion Imaging |
| topic | Atomic and Molecular Clusters Chemical Physics Quantum Physics |
| url | https://arxiv.org/abs/2408.08389 |