33S nuclear quadrupole coupling in the rotational spectra of (1000) and (0001) carbonyl sulfide: vibrational excitation in a D.C. glow discharge

Abstract

Rotational spectra have been observed in the vibrational states (10⁰0) and (00⁰1) of the isotopomer ¹⁶0¹²C³³S in an isotopically normal sample of carbonyl sulfide by incorporating a D.C. glow discharge into a pulsed-nozzle, Fourier-transform microwave spectrometer. The values determined for the ³³S nuclear quadrupole coupling constants are χ_v(³³S)=–29.7221(18) and –29.1200(12) MHz for the states (10⁰0) and (00⁰1), respectively.