Rotational analysis of the1Π-X1Σ system of AsN

Extensive spectroscopic calculations of the 21 Λ-S and 74 Ω states of the AsN molecule including the spin–orbit coupling effect

“…The other is the 1 3 3 3 Π, 3 5 Π, and 3 5 Σ þ , which are the states without available spectroscopic measurements so far.…”

“…In 1967 and 1968, D'incan and Fémelat made a a new transition involving the same lower state [2]. In 1970, Jones [2] photographed six bands of the strongly perturbed A 1 Π-X 1 Σ þ system of the molecule with a dispersion of approximately 0.4 Å/mm, and Dixit et al [3] also photographed the 0-0 and 0-1 bands of the A 1 Π-X 1 Σ þ system at a dispersion of 0.38 Å/mm. In 1974, Fémelat and Jones [4] studied several transition bands originating from the A 1 Π-X 1 Σ þ system.…”

“…In 1999, Kerr and Stocker [15] thought that the accurate ground-state dissociation energy of AsN molecule should be 5.0370.02 eV. Summarizing these measurements [1][2][3][4][5][6][7]15], we find that the spectroscopic parameters of AsN molecule were evaluated only for the X 1 Σ þ , a 03 Σ þ , a 3 Π, and A 1 Π states, and the SO coupling constant was determined only for the a 3 Π state.…”

“…In 1974, Fémelat and Jones [4] studied several transition bands originating from the A 1 Π-X 1 Σ þ system. Some spectroscopic parameters and molecular constants were evaluated from these measurements [1][2][3][4]. In 1979, Huber and Herzberg [14] summarized some accurate spectroscopic parameters and molecular constants of involved states as of that time.…”

“…As a result, the AsN molecule has attracted extensive attentions of physicists, chemists and material scientists. Much experimental [1][2][3][4][5][6][7] and theoretical works [8][9][10][11][12][13] have been done to obtain its various physical properties. However, little spectroscopic knowledge of the AsN has been known, and spectroscopic information is available only for few Λ-S states and Ω states up to now.…”