Knowledge Bank

The rotation structure of the $\nu 1+\nu 2-\nu 3,2\nu 1-\nu 3,2\nu 1,3\nu 1,2\nu 1+\nu 3$ and $3\nu 1+\nu 3$s overtone and combination bands of BrNO were examined at high resolution $(.005-.01cm-1)$ using Fourier Transform Spectroscopy. Over 4900 spectral lines were recorded for the two isotopomers $\mathrm{<mrow\; data-mjx-texclass="ORD">79</mrow>}BrNO$ and $\mathrm{<mrow\; data-mjx-texclass="ORD">81</mrow>}BrNO$. The rotational and quartic distortion terms, inertia defects and asymmetry parameters were determined for the (200), (300), (001), (200), (301) and (110) vibrational levels. The first-order vibration-rotation interaction terms were also determined.