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ULTRAFAST STUDY OF BROMINE RADICAL IN SOLUTION: THE ROLE OF COMPLEXES AND VIBRATIONAL EXCITATION

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/38021

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Title: ULTRAFAST STUDY OF BROMINE RADICAL IN SOLUTION: THE ROLE OF COMPLEXES AND VIBRATIONAL EXCITATION
Creators: Carrier, Stacey L.; Preston, Thomas J.; Crowther, Andrew C.; Crim, F. Fleming
Issue Date: 2009
Abstract: The bromine radical is an interesting species to interrogate with vibrationally mediated chemistry. It forms a long-lived complex in the liquid phase, and hydrogen abstraction from a solvent molecule is endothermic. Photolysis of a bromine precursor forms an \textit{iso}-compound within 1 ps, which decays to a radical-solvent complex on a $\sim$10 ps timescale. We use these features to examine the reaction of the Br radical complex with an excited C-H oscillator. A potential reaction pathway that becomes available upon vibrational excitation is H abstraction from the excited oscillator by Br. Vibrational excitation can also cause dissociation of the Br complex. We follow the progress of these reactions using transient broadband UV-Vis spectroscopy.
URI: http://hdl.handle.net/1811/38021
Other Identifiers: 2009-WF-04
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