PHOTOCHEMISTRY OF N2O-CENTER-DOT-H2O COMPLEXES PRODUCED IN SUPERSONICJETS

We have studied the 193 nm photodissociation of N2O.H2O complexes prod uced in a supersonic jet resulting in the reactant-pair reaction, N2O. H2O+hnu-->2OH+N2. Measured internal energy, spin-orbit and LAMBDA-doub let distributions in OH by laser induced fluorescence suggest a reacti on scheme much different from the corresponding bimolecular reaction, O(1D)+H2O-->2OH, observed in bulb experiments. The reaction should pro ceed slowly through the O(1D)-->O(P-3(2)) curve crossing and a relativ ely long-lived reaction intermediate.