Knowledge Bank

Previously, the rovibrational spectrum of $\nu 2$, the C-H stretching vibration in the linear hydrogen-bonded species HCN---HF was analyzed through the use of frequency color-center laser spectrometer in our $laboratory.1$ We now extend our analysis to include a total of twelve not bands involving $\nu 2$. These bands include the $\nu 2$ fundamental itself, as well as the not bands involving $\nu 2$ and each of the following states: $2\nu \mathrm{<mrow\; data-mjx-texclass="ORD">0</mrow>}7,\nu \mathrm{<mrow\; data-mjx-texclass="ORD">1</mrow>}7,2\nu \mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}7,3\nu \mathrm{<mrow\; data-mjx-texclass="ORD">3</mrow>}7,3\nu 71,4\nu \mathrm{<mrow\; data-mjx-texclass="ORD">0</mrow>}7,4\nu \mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}7,4\nu 74,\nu 4,\nu 4+\nu \mathrm{<mrow\; data-mjx-texclass="ORD">1</mrow>}7$, and $\nu 4+2\nu \mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}7$. We report the relevant rovibrational parameters $\nu 0,B\prime ,B\prime ,D\prime$ and $D\prime$ for each band, as well as the splitting constants $q\prime$ and $q\prime$ for the doubly degenerate bands.