Knowledge Bank

Discharge in a mixture of $CS2$ and $N2$ is a complex system which produces a variety of nitrogen and sulfur compounds $(NzSy)$. In the course of an attempt to detect microwave lines of $CS+$, we found several paramagnetic species including well known NS, CCS (appears stronger without nitrogen), and SO (evidence of a slight leak or impurities). One of the species detected here is found to contain nitrogen and carbon, and tentatively indentified as NCS. NCS has been known by its $electronic1$ and $EPR2$ spectra, but no pure rotational lines were detected previously. The microwave spectrum is observed in the range of 250-285 and 330-380 GHz with a microwave system equipped with a tripler-quadrupler. A detailed analysis of this species and an attempt of identification of other species is in progress. $\mathrm{<mrow\; data-mjx-texclass="ORD">1</mrow>}$ R. N. Dixon and D. A. Ramsay, Can. J. Phys. 46, 2619(1968). $\mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}$ A. Carrington, A. R. Fabris, and N. J. D. Lucas, Mol. Phys. 16, 195(1969).