THE ORANGE BANDS OF SrO: PARTIAL ANALYSIS OF THE TRIPLET SYSTEM

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1992

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Ohio State University

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Laser induced flourescence studies of stontium monoxid in a Broida-type oven yield an analysis of several excited triplet states. SrO molecules are excited from the a $^{3}\Pi$ state into two different $^{3}\Pi$ states about $26100 cm^{-1}$ above the ground state. Successive fluorescence into the $^{1}\Sigma$ ground state, the a $^{3}\Pi$ state as well as the b $^{3}\Sigma$ state is observed. Using a least squares fit program, spectroscopic constants for these states were obtained. The parameters for the a $^{3}\Pi$ state are in good agreement with those published by Field [1]. Beyond $J=55$, the g $^{3}\Pi$ state appears to be strongly perturbed. The main constants of the assigned states are (in $cm^{-1}$):[FIGURE] [1] R.W. Field, J. Chem. Phys., Vol. 60, 2400 (1974)

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Author Institution: Department of Physics, Penn State University

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