Determining dissociation pathways in the 193 nm photolysis of monoethylamine

Abstract Atomic hydrogen is produced subsequent to the 193 nm photolysis of monoethylamine under collisionless conditions. Experiments utilizing the selectively deuterated compounds C 2 H 5 ND 2 and C 2 D 5 NH 2 are used to determine the site(s) from which H (or D) atoms are produced. At low to moderate photolysis power, the dominant route for atomic hydrogen generation involves NH (or ND) bond cleavage. The results of photolysis-power-dependence studies and H-atom Doppler profiles are also used to investigate the overall mechanism for H-atom production.