Dynamics of the O(3P)+NH2 reaction: the HNO + H product channel

The internal state distribution of the HNO product from the O)3P)+NH2 reaction was derived in a crossed beam experiment. Rotational state distributions in the Ka=0 and 1 manifolds of the ground (000) HNO vibronic level were derived from laser fluorescence excitation spectra. The HNO rotational intermediate. The low degree of energy disposal in HNO internal excitation provides evidence for a barrier (in excess of the endoergicity) for formation of HNO+H from these intermediates, as has been predicted from quantum chemical calculations and a RRK analysis on this reaction.