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Imaging the short-lived hydroxyl-hydronium pair in ionized liquid water.
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; Wang, X J.
Afiliación
  • Lin MF; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Singh N; Department of Mechanical Engineering, Stanford University , Stanford, CA 94305, USA.
  • Liang S; Department of Chemistry, Stanford University, Stanford, CA 94305, USA.
  • Mo M; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Nunes JPF; Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
  • Ledbetter K; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Yang J; Department of Physics, Stanford University, Stanford, CA 94305, USA.
  • Kozina M; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Weathersby S; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Shen X; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Cordones AA; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Wolf TJA; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Pemmaraju CD; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Ihme M; SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Wang XJ; Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
Science ; 374(6563): 92-95, 2021 Oct.
Article en En | MEDLINE | ID: mdl-34591617
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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Science Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Science Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos