Transient x-ray absorption spectroscopy of hydrated halogen atom

被引：39

作者：

Elles, Christopher G. ^{[1
]}

Shkrob, Ilya A. ^{[1
]}

Crowell, Robert A. ^{[1
]}

Arms, Dohn A. ^{[2
]}

Landahl, Eric C. ^{[2
]}

机构：

[1] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA

[2] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 2008年 / 128卷 / 06期

关键词：

D O I：

10.1063/1.2827456

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2008 American Institute of Physics.

引用

页数：4

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