CHEMICAL EXCITATION OF THE $A^{2}\Sigma^{+}-X^{2}II$ SYSTEM OF SH AND SD.

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Title: CHEMICAL EXCITATION OF THE $A^{2}\Sigma^{+}-X^{2}II$ SYSTEM OF SH AND SD.
Creators: Pathak, C. M.; Palmer, H.B.
Issue Date: 1969
Publisher: Ohio State University
Abstract: The emission spectrum of a low-pressure diffusion flame of a mixture of $SOCl_{2}$ and $CHCl_{3}$ burning in potassium vapor includes the $(0,0)$ band of the $A^{2}\Sigma^{+}- X^{2}I$I system of SH. When $CDCl_{3}$ is substituted for $CHCl_{3}$ the flames emit the (0,0) band (0,1) bands of the A-X system of SD. The (0,1) band has not been observed previously. Together with data from the high-resolution study of the (0,0) band by Ramsay, analysis of the (0,1) band permits determination of the vibrational and rotational constants of the ground state of SD. Isotope relations then provide good values for SH. Absence of emission from $v'>0$ in both SH and SD is interpreted to mean that both molecules probably are predissociated between $v' =0$ and 1.
Description: This work was supported by the National Science Foundation.
Author Institution: Fuel Science Section, Department of Materials Science, Pennsylvania State University, University Park
URI: http://hdl.handle.net/1811/15749
Other Identifiers: 1969-L-11
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