A LASER STUDY OF THE BLUE ELECTRONIC TRANSITIONS OF CaS

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1992

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Ohio State University

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Three new electronic transitions of CaS have been observed in the blue region of the spectrum. The vibrational bands in these transitions span thousands of $cm^{-1}$ owing to a large change in geometry. Approximately $1000cm^{-1}$ portion of the spectrum containing containing these bands has been recorded at high resolution by dye laser excitation spectroscopy and analyzed. The new states all have $\Omega = 1$, and are tentatively labeled $G^{1}\Pi$, $F^{1}\Pi$, and $f^{3}\Pi_{3}$. Spectroscopic constants have been generated for all three upper states and for the $X^{1}\Sigma^{+}$ State from a fit to 4340 individual lines. The most important constants determined were:

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Author Institution: Department of Chemistry, University of Arizona; Department of Chemistry, University of Waterloo

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