Physics
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confefe09c&link_type=abstract
"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec
Physics
Matrix/Condensedphase
Scientific paper
HOCH2CH2O is one of the prototypical hydroxyalkoxy intermediates formed in the OH mediated oxidation of olefins in the atmosphere. Specifically, HOCH2CH2O is produced from NO assisted reduction of HOCH2CH2OO which in turn is formed by the OH mediated oxidation of ethene in the atmosphere. Halogen substituted ethoxy can be a model to study the hydroxy substituted ethoxy. Our group has successfully studied different primary, secondary and unsaturated alkoxy radicals using Laser Induced Fluorescence technique (LIF) coupled with supersonic free jet expansion in the past. In this talk we will present the jet cooled LIF spectrum of FCH2CH2O. FCH2CH2O was produced in the jet by 351nm photodissociation of FCH2CH2ONO. Aided by ab inito calculations and past experiments, we were able to assign our spectrum to different conformers of FCH2CH2O based on the G(±120°) and T(O°) orientations of the OCCF dihedral angle. Besides FCH2CH2O, we also found transitions belonging to HCHO and CH2CHO from FCH2CH2ONO photodissociation. HCHO and CH2CHO were also found in Cl, Br and OH substituted precursors.
Chen Ming-Wei
Chhantyal-Pun Rabi
Miller Terry A.
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