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Imaging the short-lived hydroxyl-hydronium pair in ionized liquid water.

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Title: Imaging the short-lived hydroxyl-hydronium pair in ionized liquid water.
Authors: Lin, M.-F., Singh, N., Liang, S., Mo, M., Nunes, J. P. F., Ledbetter, K., Yang, J., Kozina, M., Weathersby, S., Shen, X., Cordones, A. A., Wolf, T. J. A., Pemmaraju, C. D., Ihme, M., Wang1, X. J.
Source: Science (pre-March 2025). 10/1/2021, Vol. 374 Issue 6563, p92-95. 4p. 2 Color Photographs.
Subjects: Water analysis, Elementary reactions (Chemical reactions), Radiolysis, Proton transfer reactions, Electron diffraction, Chemical reactions
Abstract: The radiolysis of water is ubiquitous in nature and plays a critical role in numerous biochemical and technological applications. Although the elementary reaction pathways for ionized water have been studied, the short-lived intermediate complex and structural dynamic response after the proton transfer reaction remain poorly understood. Using a liquid-phase ultrafast electron diffraction technique to measure the intermolecular oxygen···oxygen and oxygen···hydrogen bonds, we captured the short-lived radical-cation complex OH(H3O+) that was formed within 140 femtoseconds through a direct oxygen···oxygen bond contraction and proton transfer, followed by the radical-cation pair dissociation and the subsequent structural relaxation of water within 250 femtoseconds. These measurements provide direct evidence of capturing this metastable radical-cation complex before separation, thereby improving our fundamental understanding of elementary reaction dynamics in ionized liquid water. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Imaging the short-lived hydroxyl-hydronium pair in ionized liquid water.
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  Data: <searchLink fieldCode="AR" term="%22Lin%2C+M%2E-F%2E%22">Lin, M.-F.</searchLink><br /><searchLink fieldCode="AR" term="%22Singh%2C+N%2E%22">Singh, N.</searchLink><br /><searchLink fieldCode="AR" term="%22Liang%2C+S%2E%22">Liang, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Mo%2C+M%2E%22">Mo, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Nunes%2C+J%2E+P%2E+F%2E%22">Nunes, J. P. F.</searchLink><br /><searchLink fieldCode="AR" term="%22Ledbetter%2C+K%2E%22">Ledbetter, K.</searchLink><br /><searchLink fieldCode="AR" term="%22Yang%2C+J%2E%22">Yang, J.</searchLink><br /><searchLink fieldCode="AR" term="%22Kozina%2C+M%2E%22">Kozina, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Weathersby%2C+S%2E%22">Weathersby, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Shen%2C+X%2E%22">Shen, X.</searchLink><br /><searchLink fieldCode="AR" term="%22Cordones%2C+A%2E+A%2E%22">Cordones, A. A.</searchLink><br /><searchLink fieldCode="AR" term="%22Wolf%2C+T%2E+J%2E+A%2E%22">Wolf, T. J. A.</searchLink><br /><searchLink fieldCode="AR" term="%22Pemmaraju%2C+C%2E+D%2E%22">Pemmaraju, C. D.</searchLink><br /><searchLink fieldCode="AR" term="%22Ihme%2C+M%2E%22">Ihme, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Wang1%2C+X%2E+J%2E%22">Wang1, X. J.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 10/1/2021, Vol. 374 Issue 6563, p92-95. 4p. 2 Color Photographs.
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  Data: <searchLink fieldCode="DE" term="%22Water+analysis%22">Water analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Elementary+reactions+%28Chemical+reactions%29%22">Elementary reactions (Chemical reactions)</searchLink><br /><searchLink fieldCode="DE" term="%22Radiolysis%22">Radiolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Proton+transfer+reactions%22">Proton transfer reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+diffraction%22">Electron diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+reactions%22">Chemical reactions</searchLink>
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  Data: The radiolysis of water is ubiquitous in nature and plays a critical role in numerous biochemical and technological applications. Although the elementary reaction pathways for ionized water have been studied, the short-lived intermediate complex and structural dynamic response after the proton transfer reaction remain poorly understood. Using a liquid-phase ultrafast electron diffraction technique to measure the intermolecular oxygen···oxygen and oxygen···hydrogen bonds, we captured the short-lived radical-cation complex OH(H3O+) that was formed within 140 femtoseconds through a direct oxygen···oxygen bond contraction and proton transfer, followed by the radical-cation pair dissociation and the subsequent structural relaxation of water within 250 femtoseconds. These measurements provide direct evidence of capturing this metastable radical-cation complex before separation, thereby improving our fundamental understanding of elementary reaction dynamics in ionized liquid water. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Elementary reactions (Chemical reactions)
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      – SubjectFull: Radiolysis
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      – SubjectFull: Proton transfer reactions
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      – SubjectFull: Electron diffraction
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      – SubjectFull: Chemical reactions
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              Text: 10/1/2021
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