HIGH RESOLUTION, ROTATIONALLY RESOLVED ELECTRONIC SPECTRA OF $ZnCH_{3}$ AND $CdCH_{3}$
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Date
1993
Journal Title
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Volume Title
Publisher
Ohio State University
Abstract
We present the rotationally resolved, laser-induced fluorescence spectra of jet-cooled $ZnCH_{3}$ and $CdCH_{3}$. The preliminary analysis of the origin band for both spin-orbit components of the $\bar{A} ^{2}E \leftarrow \bar{X} ^{2}A_{1}$ electronic transition for $ZnCH_{3}$ was reported at the 47th $Symposium.^{1}$ Since that report, a final fit has been performed. Additionally, a spectrum for the $CdCH_{3} \bar{A} ^{2}E_{1/2} \leftarrow ^{2}E_{3/2} \leftarrow \bar{X} ^{2}A_{1}$ transition has been recorded and globally fit with the previously reported $\bar{A} ^{2}E_{1/2} \leftarrow \bar{X} ^{2}A_{1}$ transition. The $\bar{A} ^{2}E_{3/2}$ state of $CdCH_{3}$ exhibits a reduced lifetime, correspondingly broader linewidths and reduced intensity pointing to the existence of a nearby non-radiative perturbing state postulated in earlier $work.^{2}$ This non-radiative state is thought to be responsible for significant Jahn-Teller-like interactions that alter the spectrum of the $\bar{A} ^{2}E_{3/2} \leftarrow \bar{X} ^{2}A_{1} CdCH_{3}$ transition compared to the other bands reported here. Results of the fit will be discussed for both species.
Description
$^{1}$ T.M. Cerny, E.S.J. Robles, A.M. Ellis, J.M. Williamson, D.W. Cullin, X.Q. Tan and T.A. Miller, 47th Ohio State University Symposium on Molecular Spectroscopy, June 1992, Paper RC6. $^{2}$ A.M. Ellis, E.S.J. Robles and T.A. Miller, Chem. Phys. Lett. 190, 599 (1992).
Author Institution: Laser Spectroscopy Facility, Department of Chemistry, The Ohio State University; Chemistry Department, Harvard University; Department of Chemistry, University of Leicester
Author Institution: Laser Spectroscopy Facility, Department of Chemistry, The Ohio State University; Chemistry Department, Harvard University; Department of Chemistry, University of Leicester