Abstract
In the present work a new analysis of the γ system (A2Σ+ → X2Π) of the molecular radical NO through high resolution Fourier transform spectroscopy is presented. Through this analysis the band origin values of 14 bands were corrected in up to 0.7 cm−1 in respect to the previously reported values. The p and q parameters of the Λ-doubling of the X2Π electronic state are here analyzed assuming van Vleck’s pure precession approximation, showing a good agreement between the theoretical and experimental values. Regarding the electronic state A2Σ+, new values of the ρ-doubling parameter γ were obtained for the first three vibrational levels, in particular for v′ = 2 where for the first time this parameter is obtained by direct fit with reasonable accuracy.
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