Flash photolysis-laser induced fluorescence study of the rate constant for amidogen (NH2) + molecular oxygen between 245 and 459 K

Flash photolysis-laser induced fluorescence experiments were performed to measure the rate constant for the reaction of NH/sub 2/ with O/sub 2/ as a function of temperature (245, 298, and 459 K). Only upper limits at the three temperatures could be inferred, their respective values being less than 4.6 x 10/sup -17/, 7.7 x 10/sup -18/, and 5.6 x 10/sup -16/ cm/sup 3/ molecule/sup -1/ s/sup -1/. These results were obtained under conditions where secondary reactions of NH/sub 2/ were unimportant. The present work is compared to earlier investigations, and the implications of this result to the oxidation of ammonia are discussed. 29 references, 1 table.