Journal of Chemical Physics, Vol.113, No.5, 1879-1884, 2000
Spin-orbit branching in the photodissociation of HF and DF. II. A time-dependent wave packet study of vibrationally mediated photodissociation
The vibrationally mediated photodissociation dynamics of HF and DF, following A (1)Pi <-- X (1)Sigma(+) electronic excitation, are examined using time-dependent wave packet techniques. Predictions of the branching fraction for the formation of excited state fluorine, F(P-2(1/2)), are made for a wide range of excitation energies and for the initial vibrational states v=1, 2, and 3. The preceding article (Ref. 33) discusses the underlying theory and presents results for photodissociation from the ground vibrational state (v=0). The calculated branching fraction for HF photodissociation from the v=3 vibrational state agrees well with the value of 0.42 +/- 0.03 measured experimentally at 193.3 nm by Zhang et al. [J. Chem. Phys. 104, 7027 (1996)]. The results are discussed in context with the corresponding results for HCl and DCl.