Infrared multiphoton dissociation of three nitroalkanes

摘要: Infrared multiphoton dissociation in a molecular beam has been studied order to elucidate the collision-free thermal chemistry and dynamics of nitromethane, nitroethane, 2-nitropropane. The isomerization CH/sub 3/NO/sub 2/ 3/ONO was observed by detecting 3/O NO products from internally very hot, isomerized nitromethane. A novel application RRKM theory used estimate barrier height at 55.5 kcal/mol. This method for determining heights shows how microscopic experiment, using infrared where concept temperature no place, can be quantitatively related pyrolysis experiments which are conducted under collisional, conditions measure phenomenological quantities such as activation energies.