Rate constants for reactions of NO− with N2O, 14N15NO, and 15NO2

The gas phase kinetics of the reactions of NO− with N2O and 14N15NO have been investigated at 143 and 298 K. The reaction of NO− with 15NO2 was studied at 298 K. For the reaction of NO− with N2O, production of N2O− and NO−2 is very slow with rate constants on the order of 10−14 cm3s−1. Isotope exchange of NO− with 14N15NO is slow with rate constant values near 10−11 cm3 s−1. The reaction of NO− with 15NO2 is rapid (k=5.1×10−10 cm3 s−1) and proceeds by electron transfer with no measurable O atom transfer.