Abstract

Diode laser spectroscopy of ν 1 and ν 3 of 32S 2 18O and ν 3 of 32S 2 16O has been carried out and several hundred transition frequencies were measured with a nominal accuracy of ±0.001 cm −1. These data have been combined with earlier microwave and diode laser measurements to produce accurate rotational and distortion constants for the (0, 0, 0), (1, 0, 0), and (0, 0, 1) vibrational states of both isotopic species. These results were combined with microwave data from (0, 1, 0) of both isotopes to allow and equilibrium structure for S 2O to be calculated.

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