15min:

M. J. DICK, Department of Physics, University of Waterloo, 200 University Ave. W., Waterloo, ON, N2L 3G1 Canada; P. M. SHERIDAN, J. G. WANG AND P. F. BERNATH, Department of Chemistry, University of Waterloo, 200 University Ave. W. , Waterloo, ON, N2L 3G1 Canada.

The A²\!A' - X²\!A', B ²\!A'' - X²\!A' and C²\!A' - X²\! A' transitions of SrSH along with the C²\!A' - X²\!A' transition of CaSH have been observed in our laser ablation spectrometer. These species are created via the reaction of strontium or calcium atoms with H₂S gas entrained in argon. The spectra are then measured at low and high resolution using laser excitation spectroscopy. For each of the observed electronic transitions, at least one K_a sub-band has been observed along with the 1-0 vibrational bands of the M--S stretch (M=Ca or Sr). The results of a preliminary fit of the high resolution data will be presented along with a comparison of the derived spectroscopic parameters for CaSH and SrSH.