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Transient x-ray absorption spectroscopy of hydrated halogen atom
Elles, Christopher G. Shkrob, Ilya A. Crowell, Robert A. Arms, Dohn A. Landahl, Eric C.
Elles, Christopher G.
Shkrob, Ilya A.
Crowell, Robert A.
Arms, Dohn A.
Landahl, Eric C.
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Abstract
Time-resolved x-ray absorption spectroscopy has been used to observe the transient species generated by one-photon detachment of an electron from aqueous bromide. The K-edge spectrum of the short-lived Br(0) atom exhibits a resonant 1s-4p transition that is absent for the Br− precursor. The strong 1s-4p resonance suggests that there is very little charge transfer from the solvent to the open-shell atom, whereas weak oscillations above the absorption edge indicate that the solvent shell around a neutral Br(0) atom is defined primarily by hydrophobic interactions. These conclusions are in agreement with Monte Carlo and quantum chemical simulations of the solvent structure.
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This is the publisher's version, also available electronically from http://scitation.aip.org/content/aip/journal/jcp/128/6/10.1063/1.2827456.
Date
2008-02-11
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American Institute of Physics
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Elles, Christopher G. (2008). "Transient x-ray absorption spectroscopy of hydrated halogen atom ." The Journal of Chemical Physics, 128:064402. http://dx.doi.org/10.1063/1.2827456.