First observation of ro-vibrational transitions of the SiC radical by infrared LMR spectroscopy Original Research Article

Ro-vibrational transitions in the (1–0) band of the electronic ground state X 3Π of the SiC radical have been observed with high accuracy using CO2-Faraday laser magnetic resonance (LMR) spectroscopy. The molecule parameters of this electronic state were determined in a nonlinear least-squares fit including all relevant experimental data of earlier work. No indication for a perturbation by other electronic states could be found. For the band origin of the fundamental band we obtained 953.32062(27) cm−1.