Comment on "Radiation damage of biosystems mediated by secondary electrons: Resonant precursors for uracil molecules" [J. Chem. Phys. 120, 7446 (2004)].
Resonances computed by Gianturco and Lucchese are incorrectly correlated with those observed experimentally. A shift of their pi* resonances by 2 eV gives satisfactory agreement. Arguments for determining whether a resonance is a suitable precursor for the fragmentation products are too simplistic, and in one example, incorrect.
Burrow
P D
PD
Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0111.