Photofragmentation of BF3 on B and F K-shell excitation by partial ion yield spectroscopy

The fragmentation of core-excited BF3 has been studied by means of partial cation and anion yield measurements around the B and F K edges. All detectable ionic fragments are reported, and differences among the fragments are discussed. The observations confirm earlier findings on the dynamics of molecular fragmentation studied by partial ion yields, notably on the influence of Rydberg excitations on fragmentation, the behaviour of anion production near threshold, and the importance of intramolecular rearrangement in the formation of F-2(+) ions.