Photochemical reaction dynamics of the N2O·H218O van der Waals complex

초록

The rotational and vibrational energy distributions have been determined for the OH radicals resulting from the 193 nm photolysis of the van der Waals complex N<inf>2</inf>O·H<inf>2</inf>O. Laser-induced fluorescence was used to probe the OH radicals. The rotational distributions of OH are characterized by the Boltzmann temperatures of 1700 K for 16OH v″ = 0 and v″ = 1 and of 1600 K for 18OH v″ = 0. A quantity of 29% 16OH exists in the v = 1 state, while 18OH is produced almost exclusively in the v = 0 state. A possible reaction scheme is discussed based on the comparison of the present results with the corresponding bimolecular reaction and with the O<inf>3</inf>/H<inf>2</inf>O system.