Abstract
Recent advances in the understanding of the factors which determine line intensities in zero kinetic energy photoelectron spectroscopy (ZEKE-PES) are reviewed. The relative importance of direct ionization and autoionization is assessed. Explicit consideration of the channel interactions which take place in the vicinity of molecular ionization thresholds leads to a general discussion of rotational line intensities in ZEKE-PES. A series of limiting cases is proposed to assist in the interpretation of experimental results. Finally a new dynamical interpretation of ZEKE experiments based on the trapping of the ZEKE electrons in non-penetrating high-l Rydberg orbitals by weak electric fields appears to give a satisfactory explanation of most experimental results obtained to date.
Original language | English |
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Pages (from-to) | 205-239 |
Number of pages | 35 |
Journal | International Reviews in Physical Chemistry |
Volume | 12 |
DOIs | |
Publication status | Published - 1 Sept 1993 |