Observation of the Solvent Shell Reorganization around Photoexcited Atomic Solutes by Picosecond X-ray Absorption Spectroscopy
Journal of the American Chemical Society2007Vol. 129(6), pp. 1530–1531
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Van‐Thai Pham, Wojciech Gawełda, Yuri Zaushitsyn, M. Kaiser, Daniel Grolimund, Steven L. Johnson, R. Abela, Christian Bressler, Majed Chergui
Abstract
We report on the observation of the solvation shell rearrangement after abstraction of the electron from aqueous I- in a laser pump/X-ray probe experiment 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 amount of back-transfer of charge from the solvent species. Both edge spectra point to a significant rearrangement of the solvation shell around I0.
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