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Rovibronic Spectroscopy of MgCH3Ã2E ←X̃2A1Transition

✍ Scribed by Aldo P. Salzberg; Brian E. Applegate; Terry A. Miller

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 124 KB
Volume: 193
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1998.7756

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✦ Synopsis

We report the laser excitation and dispersed fluorescence spectra of the A ˜2E 4 X ˜2A 1 transition of the jet-cooled MgCH 3 radical. Improvements to the experiment have allowed the observation of 6 0 1 and 2 0 1 vibronic features not previously observed. Analyses of these bands, along with the previously reported 0 0 0 spectra, yield the rotational constants and values of the Coriolis and the spin-orbit coupling constants for the radical's A ˜2E state. We also are able to rather completely characterize a small, dynamic Jahn-Teller effect. The dispersed fluorescence spectrum was analyzed and all observed X ˜2A 1 state vibrational features were assigned.

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