INFRARED DIODE LASER SPECTROSCOPY OF THE $X^{2}$II CCl RADICAL

Abstract

The infrared spectrum of carbon chloride (CCl) in the 11.8$\mu$m region was obtained at Doppler-limited resolution following ArF excimer laser photolysis of $HCClBr_{2}$. Previous $investigations^{a,b}$ have observed mostly $X^{2}$II vibrational fundamental transitions with $J$ up to 30. However, due to the limited $j$ values, some fine structure parameters, such as the A-doubling parameters, $p_{v}$ and $q_{v}$, could not be well determined. In the present study, we have observed $J$ up to 50 and, in addition, a few hot band (2,1) transitions were also observed. The more extensive data should lead to better determined molecular parameters for $X^{2}$II CCl. Acknowledgement: This work was carried out under Contract No. DE-AC02-76CH00016 with the U.S. Department of Energy and supported by its Division of Chemical Sciences, Office of Basic Energy Sciences.