Spectroscopic Identification of p-CHLORO-α-METHYLBENZYL Radical in the Gas Phase

Details Spectroscopic Identification of p-CHLORO-α-METHYLBENZYL Radical in the Gas Phase Spectroscopic Identification of p-CHLORO-α-METHYLBENZYL Radical in the Gas Phase

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mss..confetf15l&link_type=abstract

"International Symposium On Molecular Spectroscopy, 64th Meeting, Held 22-26 June, 2009 at Ohio State University. http://molspec

Physics

Radicals And Ions

Scientific paper

We report the first spectroscopic identification of the p-fluoro-α-methylbenzyl radical in the gas phase. Precursor p-fluoro-ethylbenzene seeded in a large amount of inert carrier gas helium was electrically discharged to produce the benzyl-type radicals in a corona excited supersonic expansion using a pinhole-type glass nozzle, from which the vibronic emission spectrum was recorded in the visible region using a long path monochromator. From an analysis of the spectrum observed, we found the formation of p-fluoro-α-methylbenzyl radical as well as p-fluorobenzyl radical in the jet from the precursor. After eliminating the bands belonging to p-fluorobenzyl radical using the known data, we identified spectroscopically the formation of the p-fluoro-α-methylbenzyl radical, in which the energy of the D_1 → D_0 electronic transition and a few vibrational mode frequencies in the ground electronic state were determined by comparison with those from an ab initio calculation and with those from the known data of the precursor.
S. K. Lee and D. Y. Baek Chem. Phys. Lett. 301(3-4), 407-412 (1999).

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