Journal of Chemical Physics, Vol.113, No.11, 4581-4587, 2000
The state-to-state predissociation dynamics of OC-HF upon HF stretch excitation
Photofragment angular and state distributions have been measured following the vibrational predissociation of the OC-HF complex. An F-center laser is used to pump the fundamental H-F stretching vibration of the complex and a second F-center laser is used to probe the rotational states of the HF fragment as a function of recoil angle. The complex dissociates via two different sets of channels, one that produces v(CO)=1, J(HF)=6,5,4 (intermolecular V-V transfer) and the other v(CO)=0, J(HF)=11 (V-R transfer). Analysis of the data gives correlated final state distributions, as well as an accurate value for the dissociation energy (D-0) of the complex, namely 732 +/- 2 cm(-1).