Fourier transform detection of laser-induced fluorescence from the CCN free radical

Abstract
The technique of high-resolution Fourier transform spectroscopy has been used to detect the laser-induced fluorescence spectrum of the CCN free radical. Emission from a single vibronic level in the à 2Δ state to the X̃ 2Π state yielded rotational constants for several vibronic levels of the ground state. From the analysis of the 0v21 levels the size of the Renner–Teller interaction was determined, yielding ε=0.410.