28 September 2014 to 1 October 2014
Europe/Zurich timezone
15. Sept. registration deadline

Photoelectron spectroscopy of radicals using double imaging coincidence techniques

30 Sept 2014, 11:50
30m

Speaker

Dr Gustavo Garcia (Synchrotron SOLEIL)

Description

Radicals are key intermediate species whose detection and study lead to invaluable knowledge on the mechanism of the reactions where they participate. However, their reactivity makes their stable production a challenge, and often clean production is not possible as they are detected alongside many other byproducts, including an excess of precursor. Here, we will show how double imaging coincidence techniques help to extract the photoelectron spectroscopy of pure radicals out of a complex mixture, which can then be used as a footprint for isomer differentiation. Two recent examples will be given: the NO3 radical produced by flash pyrolysis of N2O5, and the OH/OD radicals, produced in the newly commissioned flow tube reactor by the reaction H2O/D2O + F → HF + OH/OD. Perspectives on the application of the flow tube reactor to gas kinetics will be mentioned.

Primary authors

Dr Christa Fittschen (Université de Lille) Dr Craig Taatjes (Sandia National Laboratories) Dr David Osborn (Sandia National Laboratories) Dr Gustavo Garcia (Synchrotron SOLEIL) Dr Jean-Christophe Loison (Université de Bordeaux) Prof. John Stanton (University of Texas) Dr Kana Takematsu (California Institute of Technology) Dr Laurent Nahon (Synchrotron SOLEIL) Prof. Mitchio Okumura (California Institute of Technology) Dr Xiaofeng TANG (SOLEIL Synchrotron)

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