15min:

YUNJIE XU, PATRICIA ARBOLEDA AND WOLFGANG JÄGER, Department of Chemistry, University of Alberta, Edmonton, AB, Canada, T6G 2G2.

The infrared spectra of the van der Waals complex between CO and H₂S were recently studied by Xia and McKellar. Following this investigation, we have measured rotational spectra of several isotopomers of CO-H₂S using a cavity Fourier transform microwave spectrometer. Nuclear hyperfine structures due to the quadrupolar ³³S and ¹⁷O nuclei were observed and analyzed. The resulting rotational and hyperfine constants were used to derive structural and dynamical information about the complex.