Observation of the Solvent Shell Reorganization around Photoexcited Atomic Solutes by Picosecond X-ray Absorption Spectroscopy
2007
Abstract
We report on the observation of the solvation shell rearrangement after abstraction of the electron from aq. I- in a laser pump/X-ray probe expt. by recording the X-ray absorption L1- and L3-edge spectra, 50 ps after laser excitation. The L1-edge spectra clearly identify the I0 neutral species after excitation and suggest a substantial amt. of back-transfer of charge from the solvent species. Both edge spectra point to a significant rearrangement of the solvation shell around I0. [on SciFinder (R)]
Details
Title
Observation of the Solvent Shell Reorganization around Photoexcited Atomic Solutes by Picosecond X-ray Absorption Spectroscopy
Author(s)
Pham, Van-Thai ; Gawelda, Wojciech ; Zaushitsyn, Yuri ; Kaiser, Maik ; Grolimund, Daniel ; Johnson, Steven L. ; Abela, Rafael ; Bressler, Christian ; Chergui, Majed
Published in
Journal of the American Chemical Society
Volume
129
Issue
6
Pages
1530-1531
Date
2007
ISSN
0002-7863
Keywords
Solvation (dynamics; observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy); Electron photodetachment; Solvated electrons (observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy); Electron transfer kinetics (photoinduced; observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy); X-ray spectra (time-resolved absorption; observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy); Photoexcitation (two-photon; observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy); solvent shell reorganization photoexcited iodine picosecond x ray absorption
Note
CAN 146:282997
73-6
Optical, Electron, and Mass Spectroscopy and Other Related Properties
Laboratoire de Spectroscopie Ultrarapide, Faculte des Sciences de Base,Ecole Polytechnique Federale de Lausanne,Lausanne-Dorigny,Switz.
Journal
written in English.
7681-82-5 (Sodium iodide); 7732-18-5 (Water); 20461-54-5 (Iodide) Role: PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process) (observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy); 14362-44-8 (Iodine atom) Role: FMU (Formation, unclassified), PRP (Properties), FORM (Formation, nonpreparative) (photogenerated; observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy)
73-6
Optical, Electron, and Mass Spectroscopy and Other Related Properties
Laboratoire de Spectroscopie Ultrarapide, Faculte des Sciences de Base,Ecole Polytechnique Federale de Lausanne,Lausanne-Dorigny,Switz.
Journal
written in English.
7681-82-5 (Sodium iodide); 7732-18-5 (Water); 20461-54-5 (Iodide) Role: PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process) (observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy); 14362-44-8 (Iodine atom) Role: FMU (Formation, unclassified), PRP (Properties), FORM (Formation, nonpreparative) (photogenerated; observation of solvent shell reorganization around photoexcited aq. iodide by picosecond x-ray absorption spectroscopy)
Other identifier(s)
DAR: 10209
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Laboratories
LSU
Record Appears in
Scientific production and competences > SB - School of Basic Sciences > ISIC - Institute of Chemical Sciences and Engineering > LSU - Laboratory of Ultrafast Spectroscopy
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date
2007-05-31