Abstract

Abstract The photodissociation dynamics of C 8H 17Br with excitation laser at 234 nm has been studied using velocity map ion imaging. The relative quantum yields are obtained from (2+1) resonance-enhanced multiphoton ionization (REMPI) of the photo-fragment Br *( 2 P 1/2) and Br( 2 P 3/2). The velocity maps provide detailed information on translational energy distributions and angle distributions. The probabilities of the individual pathways of the fragments are calculated from the relative quantum yield and angular distribution. The results indicate that a large fraction of the available energy translates into the internal energy of the fragments, which can be explained by using the soft impulsive model. This relationship between the energy partition and the alkyl structure has been analyzed.

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