Isotopic NS rotational spectra: 14N 33S and 15N 32S

Abstract

The mm-wave spectra of the NS radical isotopomers 14N 33S and 15N 32S have been measured. Furthermore, new lines of the 14N 34S species have been recorded. The radicals were generated in a dc glow discharge of a mixture of N 2 and H 2S. All new lines belong to the 2Π 1 2 substates and were observed in natural abundance. The new data have been fitted simultaneously together with previously reported 14N 32S and 14N 34S lines to yield molecular constants, including the Born-Oppenheimer corrections δ 01 S and Δ 01 N and the 33S hyperfine constants d and a − (b + c) 2 .