Photodissociation dynamics study of 1-bromo-2-chloroethane at 234 nm

Abstract

The photodissociation dynamics of 1-bromo-2-chloroethane has been investigated near 234 nm. The three-dimensional speed and angular distribution of dissociation fragments were recorded using a [2+1] resonance enhanced multiphoton ionization scheme and a velocity mapping technique. The translational and internal energy distributions of fragments for the primary and secondary dissociation processes were extracted. The relative quantum yields for $Br(^2P_{3/2})$, $Br^*(^2P_{1/2})$, $Cl(^2P_{3/2})$, and $Cl^*(^2P_{1/2})$ were also measured based on their time-of-flight mass spectra.