FOURIER TRANSFORM EMISSION SPECTROSCOPY OF A NEW $^{3}\Phi - a^{3}\Delta$ SYSTEM OF ScH AND ScD
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Date
2004
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Ohio State University
Abstract
The emission spectra of ScH and ScD have been investigated at high resolution in the $3000-14500 cm^{-1}$ region. The molecules were excited in a scandium hollow cathode lamp by discharging a mixture of He and $H_{2}$ or $D_{2}$, and the spectra were recorded using a Fourier transform spectrometer. The new bands of ScH and ScD with high wavenumber R heads near $11620 cm^{-1}$ and $11630 cm^{-1}$, respectively, have been assigned as the $0-0$ bands of the $^{3}\Phi - a^{3}\Delta$ transition. The rotational structure of each sub-band consists of only the R and Q branches. A rotational analysis of these bands have been obtained and the spectroscopic constants have been extracted. This transition is analogous to the $^{3}\Phi - a^{3}\Delta$ transition of YH [Ram and Bernath, J. Chem. Phys., 101, 9283 (1994)] and LaH [Ram and Bernath, J. Chem. Phys., 104, 6444 (1996)].
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Author Institution: Department of Chemistry, University of Arizona; Department of Chemistry, University of Waterloo