Transient x-ray absorption spectroscopy of hydrated halogen atom
Chemical Physics
2009-11-13 v1
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.
Keywords
Cite
@article{arxiv.0708.3985,
title = {Transient x-ray absorption spectroscopy of hydrated halogen atom},
author = {Christopher G. Elles and Ilya A. Shkrob and Robert A. Crowell and Dohn A. Arms and Eric C. Landahl},
journal= {arXiv preprint arXiv:0708.3985},
year = {2009}
}
Comments
6 pages, 4 figures + supplement, will be submitted to PRL