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Title: Elementary electron and ion dynamics in ionized liquid water
Authors: Li, Jialin.
Nie, Zhaogang.
Zheng, Yi Ying.
Dong, Shuo.
Loh, Zhi-Heng.
Keywords: DRNTU::Science::Chemistry::Physical chemistry::Reactions and kinetics
Issue Date: 2013
Source: 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.
Series/Report no.: The journal of physical chemistry letters
Abstract: 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.
ISSN: 1948-7185
DOI: 10.1021/jz401987f
Rights: © 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: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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