Knowledge Bank

The $\nu 4(A1-A1)$ parallel band at $692cm-1$ together with its strongest ``hot’’ band, $\nu 4+\nu 8-\nu 8$, (E - E) were measured using our high resolution grating spectrometer equipped with a helium cooled Cu: Ge detector. The working resolution is close to $0.030cm-1$ and the standard deviation of the measured frequencies $\pm$ $3\times 10-3$ $cm-1$. The molecular constants $\nu 0$, $B\prime$, $B^\{\backslash prime\}^\{\backslash prime\}$, $DJ\prime$, and $D\_\{J\}^\{\backslash prime\}^\{\backslash prime\}$ were obtained with good accuracy. For example the standard deviation on the B is about $3\times 10-5$ $cm-1$. The K structure is resolved. INFRARED BANDS OF HCNO