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Abstract
High-resolution emission spectra of [Dtilde] 2A1-[Ctilde] 2T2 transitions in CF+ 4 were obtained from a hollow cathode discharge in CF4/He mixtures. The partly resolved rotational structures of the 0-0, 10 1 and 10 2 bands were analysed on the basis of a model Hamiltonian developed by Watson for tetrahedral molecules. Spectroscopic constants were determined via computer simulations and relations for intervals between heads of branches. Spin-orbit coupling, Coriolis interaction and Jahn-Teller distortion in the lower electronic state were found to be relatively small but to show a vibrational dependence on v 1.