LASER SPECTROSCOPY OF ScF: ANALYSIS OF PERTURBATIONS IN THE $F^{1}\Phi-A^{1}\Delta$

1. M. A. Lebeault- Dorget, C. Effantin, A. Bernard, J. d'Incan, J. Chevaleyre, and E.A Shenyavskaya J. Mol. Spectrose. 163 276 (1994) 2. S. R. Langhoff, C. W. Bauschlicher, JR., H. partridge J. Chem. Phys. 89, 366 (1988)Author Institution: Department of Chemistry, Emory UniversityThe technique of selectively detected fluorescence excitation spectroscopy has used to record the 0-0 and 1-1 bands of the $F^{1}\Phi-A^{1}\Delta$ transition of ScF at a resolution of $0.03 cm^{-1}$. Perturbations in the $F^{1}_{\Phi}$ state caused by interactions with the $h^{3} \Pi_{2}$ state were analyzed. With used of a method based of Franck-Condon factors, the vibrational numbering in the perturbing $h^{3} \Pi_{2}$ state was estimated. The principal constants ($in cm^{-1}$) obtained form recent and $previous^{1}$ analyses are: [FIGURE] Experimentally determined parmeters are in excellent agreement with the {ab initio} $calculation^{2}$