AN UPDATE ON THE VISIBLE REGION SPECTRUM OF YOH
Date
1998
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Further analysis of the visible region electronic band systems of YOH and YOD has been performed. Three electronic states, $\tilde{X}^{1}\Sigma^{+}, \tilde{B}^{1}\Pi$ and $\tilde{C}^{1}\Sigma^{+}$, have been found. Wavelength-resolved fluorescence spectra have given a large amount of information about the vibrational frequencies of the $\tilde{X}^{1} \Sigma^{+}$ state. Exciting from the $v^{\prime \prime}_{2} = 1$ level of the ground state, we have been able to determine the separation of the $l = 2$ or 0 levels. The geometric structure of the ground state is found to be $r(Y-O)= 1.94840(58)${\AA} and $r(O-H)= 0.9215(53)${\AA}. Due to the perturbed nature of the $\tilde{B}^{1}\Pi$, and $\tilde{C}^{1} \Sigma^{+}$ states, an accurate determination of their geometries has not been possible. We have tentatively identified several members of the $\nu_{3}$ progressions in these states.
Description
Author Institution: Chemistry Department, University of British Columbia; Department of Physics and Astronomy, University of British Columbia; Lambda Physik, Inc., 3201 West Commercial Blvd.