Elementary electron and ion dynamics in ionized liquid water
The ionization of liquid water functions as the principal trigger for a myriad of phenomena that are relevant to radiation chemistry and biology. The earliest events that follow the ionization of water, however, remain relatively unknown. Here, femtosecond coherence spectroscopy is combined with pol...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/87928 http://hdl.handle.net/10220/17346 |
| _version_ | 1811687762616647680 |
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| author | Li, Jialin. Nie, Zhaogang. Zheng, Yi Ying. Dong, Shuo. Loh, Zhi-Heng. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Li, Jialin. Nie, Zhaogang. Zheng, Yi Ying. Dong, Shuo. Loh, Zhi-Heng. |
| author_sort | Li, Jialin. |
| collection | NTU |
| description | The ionization of liquid water functions as the principal trigger for a myriad of phenomena that are relevant to radiation chemistry and biology. The earliest events that follow the ionization of water, however, remain relatively unknown. Here, femtosecond coherence spectroscopy is combined with polarization anisotropy measurements to elucidate the ultrafast electron and ion dynamics in ionized water. The results show that strong-field ionization of liquid water produces an aligned p electron distribution. Furthermore oscillations observed in the polarization anisotropy are suggestive of valence electron motion in the highly reactive H2O+ radical cation, whose lifetime with respect to proton transfer is found to be 196 ± 5 fs. Coherent intermolecular motions that signal initial solvent reorganization and subsequent long-lived ballistic proton transport that involves the H3O+ end-product are also detected in the time domain. These results offer new insight into the elementary dynamics of ionized liquid water. |
| first_indexed | 2024-10-01T05:21:28Z |
| format | Journal Article |
| id | ntu-10356/87928 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:21:28Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/879282023-02-28T19:35:34Z Elementary electron and ion dynamics in ionized liquid water Li, Jialin. Nie, Zhaogang. Zheng, Yi Ying. Dong, Shuo. Loh, Zhi-Heng. School of Physical and Mathematical Sciences DRNTU::Science::Chemistry::Physical chemistry::Reactions and kinetics The ionization of liquid water functions as the principal trigger for a myriad of phenomena that are relevant to radiation chemistry and biology. The earliest events that follow the ionization of water, however, remain relatively unknown. Here, femtosecond coherence spectroscopy is combined with polarization anisotropy measurements to elucidate the ultrafast electron and ion dynamics in ionized water. The results show that strong-field ionization of liquid water produces an aligned p electron distribution. Furthermore oscillations observed in the polarization anisotropy are suggestive of valence electron motion in the highly reactive H2O+ radical cation, whose lifetime with respect to proton transfer is found to be 196 ± 5 fs. Coherent intermolecular motions that signal initial solvent reorganization and subsequent long-lived ballistic proton transport that involves the H3O+ end-product are also detected in the time domain. These results offer new insight into the elementary dynamics of ionized liquid water. ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2013-11-06T06:46:31Z 2019-12-06T16:52:19Z 2013-11-06T06:46:31Z 2019-12-06T16:52:19Z 2013 2013 Journal Article Li, J., Nie, Z., Zheng, Y. Y., Dong, S., & Loh, Z. H. (2013). Elementary electron and ion dynamics in ionized liquid water. The Journal of Physical Chemistry Letters, 4, 3698-3703. 1948-7185 https://hdl.handle.net/10356/87928 http://hdl.handle.net/10220/17346 10.1021/jz401987f 179862 en The journal of physical chemistry letters © 2013 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by The Journal of Physical Chemistry Letters, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/jz401987f]. application/pdf |
| spellingShingle | DRNTU::Science::Chemistry::Physical chemistry::Reactions and kinetics Li, Jialin. Nie, Zhaogang. Zheng, Yi Ying. Dong, Shuo. Loh, Zhi-Heng. Elementary electron and ion dynamics in ionized liquid water |
| title | Elementary electron and ion dynamics in ionized liquid water |
| title_full | Elementary electron and ion dynamics in ionized liquid water |
| title_fullStr | Elementary electron and ion dynamics in ionized liquid water |
| title_full_unstemmed | Elementary electron and ion dynamics in ionized liquid water |
| title_short | Elementary electron and ion dynamics in ionized liquid water |
| title_sort | elementary electron and ion dynamics in ionized liquid water |
| topic | DRNTU::Science::Chemistry::Physical chemistry::Reactions and kinetics |
| url | https://hdl.handle.net/10356/87928 http://hdl.handle.net/10220/17346 |
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