Synchrotron Photoionization Study of Mesitylene Oxidation Initiated by Reaction with Cl(2P) or O(3P) Radicals

Autor:	Craig A. Taatjes, David L. Osborn, Martin Y. Ng, Jordan N. Nelson, Giovanni Meloni
Rok vydání:	2014
Předmět:	Chemistry Radical Synchrotron radiation Photoionization Photochemistry Mass spectrometry Synchrotron law.invention Chemical kinetics chemistry.chemical_compound law Physical and Theoretical Chemistry Ionization energy Mesitylene
Zdroj:	The Journal of Physical Chemistry A. 118:3735-3748
ISSN:	1520-5215 1089-5639
DOI:	10.1021/jp500260f
Popis:	This work studies the oxidation of mesitylene (1,3,5-trimethylbenzene) initiated by O(3P) or Cl(2P) atoms. The O(3P) initiated mesitylene oxidation was investigated at room temperature and 823 K, whereas the Cl-initiated reaction was carried out at room temperature only. Products were probed by a multiplexed chemical kinetics photoionization mass spectrometer using the synchrotron radiation produced at the Advanced Light Source (ALS) of Lawrence Berkeley National Laboratory. Reaction products and intermediates are identified on the basis of their time behavior, mass-to-charge ratio, ionization energies, and photoionization spectra. Branching yields are derived for the O-initiated reaction at 823 K and the Cl-initiated reaction at room temperature. Reaction schematics are proposed and presented.
Databáze:	OpenAIRE
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