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arXiv · 0708.3985

Transient x-ray absorption spectroscopy of hydrated halogen atom

Christopher G. Elles·Ilya A. Shkrob·Robert A. Crowell·Dohn A. Arms·Eric C. Landahl
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Abstract

Time-resolved x-ray absorption spectroscopy monitors the transient species generated by one-photon detachment of an electron from aqueous bromide. Hydrated bromine atoms with a lifetime of ca. 17 ns were observed, nearly half of which react with excess Br- to form Br2-. The K-edge spectra of the Br atom and Br2- anion exhibit distinctive resonant transitions that are absent for the Br- precursor. The absorption spectra indicate that the solvent shell around a Br0 atom is defined primarily by hydrophobic interactions, in agreement with a Monte Carlo simulation of the solvent structure.

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Christopher G. Elles, Ilya A. Shkrob, Robert A. Crowell, Dohn A. Arms, Eric C. Landahl. 2007-08-29. Transient x-ray absorption spectroscopy of hydrated halogen atom. https://doi.org/10.1063/1.2827456

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