Kinetics of the reactions of NCO radicals with H2 and NO using laser photolysis–laser induced fluorescence

Abstract

Absolute rate constants for the reaction of NCO radicals with hydrogen (k6; T=592–913K) and nitric oxide (k7;T=294–538K) were measured using excimer laser photolysis-laser induced fluorescence at 416.8 nm. The following Arrhenius expressions summarize the data: k6=1.43×10−11e(−9000±1500)/RT k7=1.69×10−11e(390±320)/RT cm3 molecule−1 s−1. The experimental technique and results are discussed, and the importance of these reactions to combustion chemistry is addressed.