A unified model of the dynamics and spectroscopy of the g 3Σ− and E 1Σ+ states of hydrogen chloride

Abstract

The yield, Y, the spin–orbit branching ratio, Γ, and the angular anisotropy, β2, of Cl atoms produced by predissociation of the E 1Σ+ and g 3Σ0− Rydberg states of HCl and DCl are reported as functions of the rotational angular momentum J. For the E state, Y increases with J for HCl and decreases with J for DCl, whereas Γ and β2 are independent of J for both isotopomers. For the g0 state Y increases with J, whereas Γ and β2 both decrease with J for both isotopomers. The different dynamical behavior of these two 0+-symmetry states belonging to the same zero-order electronic configuration is explained in terms of their diabatic characters.