SEARCHING FOR THE LOW-LYING TRIPLET STATE OF $CCl_{2}$
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Date
2003
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Dispersed fluorescence spectra have been recorded pumping several $\tilde{A} - \tilde{X}$ electronic transition of $CCl_{2}$. The analysis of the data yield well defined values for the harmonic and anharmonic constants for the symmetric ground state vibrations. Additional lines are observed at red shifts from $5000 cm^{-1}$ from the origin, which cannot be not assigned to any $\tilde{X}$ vibrational levels. A possible explanation for these transitions would be perturbations of the singlet $\tilde{A}$ by the low-lying triplet $\tilde{a}$ state. This observation is in fair agreement with the theoretical predictions for the singlet-triplet state energy separation, and supports the new, alternative interpretations of the photodetachment spectrum of Lineberger et al.
Description
$^{a}$Present address: Department of Chemistry, Ohio Northern University, Ada OH 45810 $^{b}$Permanent address: Department of General and Inorganic Chemistry, E\""{o}tv\""{o}s University, P.O. Box 32, H-1518 Budapest 112, Hungary
Author Institution: Laser Spectroscopy Facility, Department of Chemistry, The Ohio State University; Department of Chemistry, National Central University
Author Institution: Laser Spectroscopy Facility, Department of Chemistry, The Ohio State University; Department of Chemistry, National Central University