Analysis of perturbations in the A2Π-X2Σ+ “Red” system of CN

摘要: Abstract Deperturbed vibration-rotation constants of the A 2 Π( v ′ = 0 to 12) and X Σ + ( ″ 8) states CN are obtained. Specroscopic data from several sources combined using a weighted, nonlinear least-squares fitting routine. The diagonalized effective Hamiltonian matrix contains as many two Π four mutually interacting vibronic levels. Perturbations by both B treated simultaneously. deperturbed interaction elements obtained provide significantly more accurate representation all perturbed unperturbed observed lines than previously reported values. electronic factors spin-orbit rotation-electronic perturbation for ∼ interactions determined unreported perturbations detected analyzed. Merged Dunham coefficients calculated; detailed statistical treatment parameters error estimates has also been carried out.