LIF STUDY OF o. m. p. METHYL BENZYL RADICALS
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Publisher:Ohio State University
The methyl derivatives of the benzyl radical are prototypes of substituted aromatic radicals. They also serve as the radical analogs of the corresponding xylenes. Recently several papers have reported on the barriers to methyl rotation in both the ground and first excited state of the xylene molecules. Generally speaking, these papers have concluded that these barriers are dominantly electronic in origin. Using LIF excitation spectra and laser excited wavelength resolved emission, we have observed transitions among hindered rotor levels of methyl substituted benzyl radicals. We will report upon the methyl barrier heights and positions, based upon analysis of our experimental results. Comparisons to the xylene barriers will be made.
Author Institution: Laser Spectroscopy Facility, Department of Chemistry., The Ohio State University
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