ROTATIONAL ANALYSIS OF THE $\tilde{C}$$^{2}$A$_{1}$ - $\tilde{X}$$^{2}$A$_{1}$ TRANSITION OF SrNH$_{2}$
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Date
2005
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Publisher
Ohio State University
Abstract
A high-resolution spectrum of the $\tilde{C}$$^{2}$A$_{1}$ - $\tilde{X}$$^{2}$A$_{1}$ transition of SrNH$_{2}$ has been recorded using a jet cooled/laser ablation spectrometer. SrNH$_{2}$ was created by the reaction of UV-ablated Sr atoms with a 15${\%}$ mixture of NH$_{3}$ in argon and detected using laser excitation spectroscopy. Low J transitions arising from both the $K_{a}^{\prime}$ = 0 ${\leftarrow}$ $K_{a}^{\prime\prime}$ = 0 and $K_{a}^{\prime}$ = 1 ${\leftarrow}$ $K_{a}^{\prime\prime}$ = 1 sub-bands have been observed. Rotational and fine structure parameters have been determined for both states. The spin-rotation constants for the $\tilde{C}$$^{2}$A$_{1}$ state have been calculated using the pure precession model and will be compared to those determined in the fit. In addition, these spectroscopic constants will be compared to those of the previously measured $\tilde{A}$$^{2}$B$_{1}$ and $\tilde{B}$$^{2}$B$_{2}$ states of SrNH$_{2}$. Structural parameters for all states will also be discussed.
Description
Author Institution: Department of Chemistry, University of Waterloo, 200 University Ave. West,; Waterloo, ON, N2L 3G1 Canada; Department of Physics, University of Waterloo, 200 University Ave. West,; Waterloo, ON, N2L 3G1 Canada; Department of Chemistry, University of Waterloo, 200 University Ave. West,; Waterloo, ON, N2L 3G1 Canada