The product state-resolved dynamics of the photon-initiated title reac
tion, leading to the production of OH(X-2 Pi(3/2): v' = 0, N' = 5), ha
s been studied using Doppler-resolved laser-induced fluorescence at a
collision energy of 143 kJ mol(-1) (= 1.48 eV). The angular distributi
on of OH(v' = 0, N' = 5) is found to possess both forward and backward
peaks, with a slight bias towards the backward hemisphere. The experi
ments allow precise determination of the distribution of energy releas
ed into translation and hence into the internal modes of the N-2 co-pr
oduct. The OH state specific kinetic energy disposal is found to be sh
arply distributed about a mean fractional translational energy release
f(t) similar to 0.4. The results are discussed in the light of previo
us experimental and theoretical work. (C) 1998 Elsevier Science B.V. A
ll rights reserved.