Abstract
The dynamics of photodissociation of propene has been investigated at 157 nm in a molecular-beam apparatus using photofragment translational spectroscopy and photoionization produced with a synchrotron. We measured angular anisotropy parameters β of several products as a function of kinetic energy. Atomic H has an isotropic angular distribution, H 2 has a small negative β, and fragments due to C–C bond rupture have a small positive β. According to these measurements we suggest that the 2 1A′(π−3p) state has a major contribution on excitation at 157 nm. Photolysis of CD 3CHCH 2 reveals site effects on the angular distributions of products.
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